FORM 10-Q/A
                                 AMENDMENT NO. 1
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                   Quarterly Report Under Section 13 or 15(d)
                     of the Securities Exchange Act of 1934



For the Quarterly Period Ended                  March 31, 2003
                              --------------------------------------------------

Commission file number                       #0-10786
                      ----------------------------------------------------------

                          Insituform Technologies, Inc.
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             (Exact name of registrant as specified in its charter)


             Delaware                                 13-3032158
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  (State or other jurisdiction of          (I.R.S. Employer Identification No.)
  incorporation or organization)


             702 Spirit 40 Park Drive, Chesterfield, Missouri 63005
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                    (Address of Principal Executive Offices)


                                 (636) 530-8000
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               (Registrant's telephone number including area code)



--------------------------------------------------------------------------------
              (Former name, former address and former fiscal year,
                          if changed since last report)



Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days.

                               Yes  X    No
                                  -----     -----


Indicate by check mark whether the registrant is an accelerated filer (as
defined in Rule 12b-2 of the Exchange Act).

                               Yes  X    No
                                  -----     -----


Indicate the number of shares outstanding of each of the issuer's classes of
common stock, as of the latest practicable date.



                 Class                           Outstanding at May 30, 2003
----------------------------------------      ----------------------------------
                                           
  Class A Common Stock, $.01 par value                26,465,915 Shares





                                EXPLANATORY NOTE

This Amendment No. 1 ("the Amendment") to the Quarterly Report on Form 10-Q for
the quarterly period ended March 31, 2003 (the "Form 10-Q") amends Part I, Item
2, "Management's Discussion and Analysis of Financial Condition and Results of
Operations" to correct the rehabilitation segment's backlog amounts presented
for contract backlog and apparent low bid expected in the next 12 months at
March 31, 2003, and Part II, Item 6, "Exhibits and Reports on Form 8-K" to
provide updated certifications pursuant to 18 U.S.C. Section 1350, as adopted
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

The remaining items in the registrant's Form 10-Q remain unchanged.

                         PART I - FINANCIAL INFORMATION

ITEM 2.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
         OF OPERATIONS

The following is management's discussion and analysis of certain significant
factors that have affected the Company's financial condition and results of
operations during the periods included in the accompanying consolidated
financial statements. See the discussion of the Company's critical accounting
policies in its Annual Report on Form 10-K for the year ended December 31, 2002;
there have been no changes to these policies during the first quarter of 2003.

RESULTS OF OPERATIONS - Three Months Ended March 31, 2003 and 2002

The following table highlights the results for each of the segments and periods
presented (in thousands):



                                          THREE MONTHS ENDED MARCH 31, 2003
                             REHABILITATION       TUNNELING       TITELINER(R)        TOTAL
                             ----------------------------------------------------------------
                                                                     
         Revenues               $ 92,367          $ 25,585           $5,396         $ 123,348
         Gross Profit             23,468             3,161            1,640            28,269
         Operating Income          8,814             1,441              931            11,186


                                          THREE MONTHS ENDED MARCH 31, 2002
                             REHABILITATION       TUNNELING       TITELINER(R)        TOTAL
                             ----------------------------------------------------------------
                                                                     
         Revenues               $ 91,442          $ 15,176           $4,558         $ 111,176
         Gross Profit             24,307             3,051            1,531            28,889
         Operating Income          8,626             1,866              742            11,234


Consolidated revenues from continuing operations for the first quarter of 2003
were $123.3 million, a 10.9% increase compared to first quarter 2002 revenues of
$111.2 million. The tunneling segment, which increased revenues 68.6% to $25.6
million from $15.2 million in the first quarter of 2002, contributed most of the
overall increase in revenues. First quarter 2003 tunneling revenues included
$4.2 million directly attributable to the acquisition of Elmore Pipe Jacking,
Inc. in May of 2002. The rest of the growth in tunneling was organic. First
quarter 2003 rehabilitation revenues of $92.4 million represented a 1.0%
increase over 2002 first quarter revenues. The relatively flat rehabilitation
revenues were primarily a result of continued weak market conditions in North
America, and problems in France. The Company is in the process of making changes
to improve the French operation. Revenues for the Company's TiteLiner(R) segment
("TiteLiner") for the first quarter of 2003 were $5.4 million, 18.4% greater
than 2002 first quarter revenues. In late 2002, the TiteLiner segment
experienced an increase in orders and backlog, which translated into increased
revenues in the first quarter of 2003. Orders were up in the tunneling segment
in the first quarter of 2003 compared to the fourth quarter of 2002. This was
offset by a decline in orders in the rehabilitation segment during the same time
period. There is no apparent order trend going forward.

Cost of revenues from continuing operations for the first quarter of 2003 were
$95.1 million, a 15.5% increase compared to first quarter 2002 cost of revenues
of $82.3 million. Most of the increase in cost of revenues was attributable to
growth in the tunneling segment. This growth increased cost of revenues $10.3
million in the first quarter of 2003 compared to the first quarter of 2002. Of
the first quarter 2003 tunneling segment increase, $6.1 million was related to
Elmore operations which were not added until May 2002.

Gross profit in the first quarter of 2003 decreased 2.1% to $28.3 million from
$28.9 million in the first quarter of 2002. Overall gross margin for the first
quarter of 2003 was 22.9%, a decrease from the 26.0% gross margin in the first
quarter



                                       2


of 2002. All segments experienced decreases in gross margin percentage, but the
most pronounced change was in tunneling, where margins were 12.4% in the first
quarter of 2003 compared to 20.1% in the first quarter of 2002. Unexpected costs
from amounts owed to subcontractors on a project acquired from Elmore were
primarily to blame for the lower margins in the tunneling segment. The tunneling
segment has historically had operating income ratios comparable to or better
than the Company's other segments. However, this is achieved with a lower and
more volatile gross margin and lower operating expenses. As the tunneling
segment becomes a more significant part of consolidated results, the tunneling
segment results will tend to reduce the consolidated gross margin ratio but
contribute to the consolidated operating income ratio.

Selling, general and administrative expenses were $17.1 million for the first
quarter of 2003, a 3.3% improvement compared to $17.7 million for the first
three months of 2002. The decrease in selling, general and administrative
expenses was achieved despite an additional $0.6 million of selling, general and
administrative expenses related to Elmore and is due primarily to a decrease in
incentive compensation expense. Otherwise, selling, general and administrative
expenses were flat over the same time period comparison. The Company has
substantially completed cost reduction and restructuring efforts announced in
the fourth quarter of 2001 and the third quarter of 2002. See Note 5 regarding
restructuring and discussion of amounts charged against the reserves during the
first quarter of 2003.

Consolidated operating income from continuing operations remained unchanged at
$11.2 million for the first quarter of 2003 compared to the first quarter of
2002. Rehabilitation and TiteLiner showed modest increases in operating income
for the first quarter of 2003, which were offset by decreased operating income
in tunneling. The previously discussed job acquired from Elmore primarily caused
the decrease in tunneling operating income, but this unexpected cost item is
expected to be a one-time event. In rehabilitation, strong profit performance in
some domestic units was offset by weaker results in others. One of the normally
strong rehabilitation units suffered from low backlog and under-performed
significantly. The Company incurred large losses on unprofitable cured-in-place
pipe ("CIPP") contracts in New York. The Kinsel rehabilitation operation had a
difficult quarter with a combination of under-loading and operating
difficulties. In Europe, performance in the Netherlands and Spain exceeded prior
year while the French operation was unprofitable.

Interest expense of $1.2 million in the first quarter of 2003 was a 45.3%
improvement compared to interest expense of $2.2 million in the first quarter of
2002. Approximately half of the decrease was due to the reversal of interest
expense forgiven in a settlement with the former owners of the Kinsel
operations. The remaining decrease in interest expense stems from lower interest
rates on debt in 2003. Other income fell slightly to $0.4 million in the first
quarter of 2003 from $0.5 million in the first quarter of 2002 due to interest
rate decreases. The effective tax rate remained unchanged at 39.0% in the first
quarter of 2003 compared to the first quarter of 2002.

Equity in earnings of affiliated companies decreased 83.7% in the first quarter
of 2003 compared to the first quarter of 2002 due primarily to the discontinued
affiliation with a joint venture partner in the third quarter of 2002. Minority
interests remained flat during the same time periods.

Income from continuing operations for the first quarter of 2003 was $6.4
million, a 7.2% increase compared to $5.9 million in the first quarter of 2002.
As operating income was consistent in the first quarter of 2003 compared to
first quarter 2002, much of this increase in income from continuing operations
resulted from the lower interest expense described above. Included in the
results from continuing operations was a one-time gain of $0.6 million or $0.02
per diluted share from the settlement of claims against the former Kinsel
owners. Discontinued operations provided $0.3 million of additional income due
primarily to negotiated settlements between the Company and the former Kinsel
owners, and between the Company and the purchasers of the wastewater treatment
plant operations acquired from Kinsel. See Note 4 to the Consolidated Financial
Statements for further discussion. This compares to a loss of $1.6 million from
discontinued operations in the first quarter of 2002. Resulting net income was
$6.6 million in the first quarter of 2003, a 53.4% increase compared to $4.3
million in net income in the first quarter of 2002.

The level of CIPP work bid by the Company in North America in the first quarter
of 2003 was up slightly from 2002 but down from 2001. Bidding was stronger in
March 2003. The Company's domestic CIPP bidding and order acquisition in April
2003 was high and comparable to the strong results for the same period in 2002.
Tunneling prospects continue to be very strong but delays in bringing projects
to market continue.

There is heightened uncertainty about the levels of municipal spending in fiscal
2004. While local budgets for water and sewer are relatively unaffected by the
budget problems of state governments, there is concern about potential
reductions in overall spending by cities.




                                       3


BACKLOG

The following table highlights backlog for each of the segments and at each date
presented (in millions):

MARCH 31, 2003:



                                                                                      APPARENT LOW BID
                                          APPARENT LOW BID       UNRELEASED TERM       AND UNRELEASED
                           CONTRACT          EXPECTED IN           EXPECTED IN         TERM AVAILABLE
                            BACKLOG        NEXT 12 MONTHS         NEXT 12 MONTHS      BEYOND 12 MONTHS
                            --------------------------------------------------------------------------
                                                                          
      Rehabilitation         $ 92.5              $19.9                  $38.2                $ 20.3
      Tunneling                98.1                -                      -                     -
      TiteLiner                 5.5                -                      -                     -
                            ------------------------------------------------------------------------
      Total                  $196.1              $19.9                  $38.2                $ 20.3
                            ========================================================================


DECEMBER 31, 2002:



                                                                                      APPARENT LOW BID
                                          APPARENT LOW BID       UNRELEASED TERM       AND UNRELEASED
                           CONTRACT          EXPECTED IN           EXPECTED IN         TERM AVAILABLE
                            BACKLOG        NEXT 12 MONTHS         NEXT 12 MONTHS      BEYOND 12 MONTHS
                            --------------------------------------------------------------------------
                                                                          
      Rehabilitation         $112.1              $27.2                  $34.3                $ 20.9
      Tunneling               110.0                -                      -                     -
      TiteLiner                 5.1                -                      -                     -
                            ------------------------------------------------------------------------
      Total                  $227.2              $27.2                  $34.3                $ 20.9
                            ========================================================================


Contract backlog is management's expectation of revenues to be generated from
received, signed, uncompleted contracts whose cancellation is not anticipated at
the time of reporting. Reported contract backlog excludes any term contract
amounts for which there is not specific and determinable work released. At March
31, 2003, the Company reported contract backlog (excluding projects where the
Company has been advised that it is the low bidder, but not formally awarded the
contract) of $196.1 million, a $31.1 million decrease from December 31, 2002
contract backlog of $227.2 million. The Company anticipates that a significant
portion of contract backlog reported at March 31, 2003 and an additional $58.1
million of unreleased term contracts and jobs on which the Company is the
apparent low bidder will be completed in the next twelve-month period. An
additional $20.3 million of unreleased term contract work and work on which the
Company is the apparent low bidder is anticipated for completion beyond the
twelve-month period. Backlog estimates beyond one year are inherently subject to
greater uncertainty due to their long-term nature. All backlog values are the
estimate of management based on contracts outstanding at March 31, 2003 and are
subject to change due to factors beyond the control of the Company, such as
modification or cancellation of the contract award.

LIQUIDITY AND CAPITAL RESOURCES

Cash and cash equivalents were $83.4 million at March 31, 2003, an $8.0 million
increase in the first quarter of 2003 compared to $75.4 million at December 31,
2002. The balance of cash and cash equivalents included $3.4 million and $4.0
million at March 31, 2003 and December 31, 2002, respectively, restricted in
various escrow accounts. Operating activities from continuing operations
contributed $13.9 million to the increase, primarily from net income of
continuing operations and a $4.1 million decrease in working capital. Operating
cash flow from continuing activities contributed $6.2 million in the first
quarter of 2002 when working capital increases used $4.3 million of cash.
Discontinued operations provided an additional $1.8 million during the first
quarter of 2003 mainly from the settlement of claims against the former Kinsel
owners. This compares to the use of $0.3 million of cash by discontinued
operations in the first quarter of 2002.

Spending on investing and financing activities was down 48.1% and 71.2%,
respectively, in the first quarter of 2003 compared to the first quarter of
2002. The primary use of cash for investing in the first quarter of 2003 was
$2.1 million in capital expenditures compared to the first quarter of 2002 when
$5.5 million was spent on capital projects, $1.2 million was collected on the
sale of fixed assets, and $1.5 million was contributed from the sale of Kinsel's
wastewater treatment plant operations. Primary uses of cash for financing during
the first three months of 2003 were $1.4 million for the repurchase of the
Company's stock and $18.7 million to repay long-term debt, $15.7 million of
which was a scheduled annual payment on the Company's Senior Notes. This was
offset by the borrowing of an additional $14.5 million on the lines of credit
during the quarter. By comparison, in the first quarter of 2002, $2.2 million
was expended for the




                                       4


repurchase of Company stock and $17.2 million was paid on long-term debt. Much
of the decrease in spending for capital items is due to cost containment and
focused capital preservation efforts for the purpose of maintaining operational
flexibility. The Company purchased 110,000 shares in the first quarter of 2003
for $1.4 million compared to 100,000 repurchased shares in the first quarter of
2002 for $2.2 million. On a cumulative basis, the Company has spent $74.0
million to repurchase 3,919,615 shares through March 31, 2003 since the
inception of the stock repurchase program originally authorized in 1998. In
April 2003, the Company indefinitely extended its repurchase program, which was
due to expire in June 2003. Repurchased shares are held as treasury stock until
reissued.

Trade receivables, along with retainage under construction contracts, totaled
$116.2 million at March 31, 2003, an 8.9% increase compared to $106.7 million in
combined receivables at December 31, 2002. A majority of this increase was due
to the invoicing and reclassification of a significant amount of unbilled
revenue in the tunneling segment for services rendered prior to December 31,
2002. Consolidated unbilled revenue decreased $7.3 million from $36.7 million at
December 31, 2002 to $29.4 million at March 31, 2003.

Effective March 27, 2003, the Company entered into a new three-year bank
revolving credit facility (the "Credit Agreement") to replace its expiring bank
credit facility. This new facility provides the Company with borrowing capacity
of up to $75 million. The quarterly commitment fee ranges from 0.2% to 0.3% per
annum on the unborrowed balance depending on the leverage ratio determined as of
the last day of the Company's preceding fiscal quarter. At the Company's option,
the interest rates will be either (i) the LIBOR plus an additional percentage
that varies from 0.75% to 1.5% depending on the leverage ratio or (ii) the
higher of (a) the prime rate or (b) the federal funds rate plus 0.50%. At March
31, 2003, the Company had unused committed bank credit facilities under the
Credit Agreement totaling $28.8 million and the commitment fee was 0.25%. The
interest rate under the Credit Agreement was 4.25% and the balance was $40.0
million as of March 31, 2003.

The Company's Senior Notes, Series A, due February 14, 2007, bear interest,
payable semi-annually in August and February of each year, at the rate per annum
of 7.88%. Each year, from February 2004 to February 2007, inclusive, the Company
will be required to make principal payments of $15.7 million, together with an
equivalent payment at maturity. On March 31, 2003, the principal amount of
Senior Notes, Series A, outstanding was $62.9 million.

On April 24, 2003, the Company placed an additional $65 million of Senior Notes,
Series 2003-A, with certain institutional investors through a private offering,
bringing the total Series A and Series 2003-A Senior Notes outstanding to $127.9
million at that date. The Senior Notes, Series 2003-A, are due April 24, 2013
and bear interest, payable semi-annually in April and October of each year, at a
rate of 5.29% per annum. The principal amount is due in a single payment on
April 24, 2013. The Senior Notes, Series 2003-A, may be prepaid at the Company's
option, in whole or in part, at any time, together with a make-whole premium.
Upon specified change in control events, each holder has the right to require
the Company to purchase its Senior Notes, Series 2003-A, without any premium
thereon. The proceeds of the Senior Notes, Series 2003-A, were used to pay off
the balance on the line of credit and to provide future liquidity.

The note purchase agreements pursuant to which the Senior Notes, Series A and
Series 2003-A, were issued, and the Credit Agreement, obligate the Company to
comply with certain financial ratios and restrictive covenants that, among other
things, place limitations on operations and sales of assets by the Company or
its subsidiaries, limit the ability of the Company to incur further secured
indebtedness and liens and of subsidiaries to incur indebtedness, and, in the
event of default, limit the ability of the Company to pay cash dividends or make
other distributions to the holders of its capital stock or to redeem such stock.
At March 31, 2003, the Company was in compliance with all debt covenants.

The Company believes it has adequate resources and liquidity to fund future cash
requirements for working capital, capital expenditures and debt repayments with
cash generated from operations, existing cash balances, additional short- and
long-term borrowing and the sale of assets.

DISCLOSURE OF FINANCIAL OBLIGATIONS AND COMMERCIAL COMMITMENTS

The Company has entered into various financial obligations and commitments in
the course of its ongoing operations and financing strategies. Financial
obligations are considered to represent known future cash payments that the
Company is required to make under existing contractual arrangements, such as
debt and lease agreements. These obligations may result from both general
financing activities as well as from commercial arrangements that are directly
supported by related revenue-producing activities. Commercial commitments
represent contingent obligations of the Company, which become payable only if
certain pre-defined events were to occur, such as funding financial guarantees.
See Note 14 to the Consolidated Financial Statements included in the Company's
2002 Annual Report on Form 10-K for additional disclosure of financial
obligations and commercial commitments.




                                       5


The following table provides a summary of the Company's financial obligations
and commercial commitments as of March 31, 2003 (in thousands). This table
includes cash obligations related to principal outstanding under existing debt
arrangements and operating leases.



                                                               PAYMENTS DUE BY PERIOD
Cash Obligations*              TOTAL       2003         2004         2005         2006         2007      THEREAFTER
                                                                                    
Long-term debt**            $ 155,374   $  23,360    $ 17,377     $ 17,007      $16,764      $15,822      $ 65,044
Line of credit facility***     40,498      40,498           -            -            -            -             -
Operating leases               44,472      13,531       9,386        6,062        4,470        3,952         7,071
                            ---------------------------------------------------------------------------------------

Total contractual cash
  obligations               $ 240,344   $  77,389    $ 26,763     $ 23,069      $21,234      $19,774      $ 72,115
                            =======================================================================================



* Cash obligations herein are not discounted and do not include related
interest. See Notes 10 and 11 to the Consolidated Financial Statements regarding
commitments and contingencies and debt issued subsequent to the balance sheet
date, respectively.
** On April 24, 2003, the Company placed an additional $65 million of Senior
Notes, Series 2003-A, with principal due in a single payment on April 24, 2013.
See Note 11 to the Consolidated Financial Statements for additional discussion
regarding the Senior Notes.
*** Effective March 27, 2003, the Company entered into a new three-year bank
revolving credit facility to replace its expiring bank credit facility. The
Company uses the credit facility for short-term borrowing and discloses amounts
outstanding as a current liability. See Note 11 to the Consolidated Financial
Statements for additional discussion regarding the credit facility.

NEW ACCOUNTING PRONOUNCEMENTS

In June 2002, the Financial Accounting Standards Board ("FASB") issued Statement
of Financial Accounting Standards No. 146 ("SFAS 146"), "Accounting for Costs
Associated with Exit or Disposal Activities." SFAS 146 requires an entity to
recognize, and measure at fair value, a liability for costs associated with an
exit or disposal activity in the period in which the liability is incurred. SFAS
146 supercedes Emerging Issues Task Force Issue ("EITF") No. 94-3, "Liability
Recognition for Certain Employee Termination Benefits and Other Costs to Exit an
Activity (Including Certain Costs Incurred in a Restructuring)." SFAS 146 is
effective for exit or disposal activities that are initiated after December 31,
2002. The Company has adopted the provisions of SFAS 146 effective January 1,
2003. There was no material impact upon adoption.

In November 2002, FASB issued FASB Interpretation No. 45 ("FIN 45"),
"Guarantor's Accounting and Disclosure Requirements for Guarantees, Including
Indirect Guarantees of Indebtedness of Others," which elaborates on the
disclosures to be made by a guarantor in its interim and annual financial
statements about its obligations under certain guarantees that it has issued
along with expanded disclosures of warranty reserves. It also requires that a
guarantor recognize a liability for the fair value of the obligation undertaken
in issuing the guarantee at the inception of the guarantee. This interpretation
incorporates the guidance in FIN 34, "Disclosure of Indirect Guarantees of
Indebtedness of Others," which is being superseded. The initial recognition and
initial measurement provisions of FIN 45 are applicable on a prospective basis
to guarantees issued or modified after December 31, 2002, irrespective of the
guarantor's fiscal year-end and the disclosure requirements are effective for
financial statements of interim or annual periods ending after December 15,
2002. Adoption of FIN 45 did not have a material impact on the consolidated
financial statements. See Note 10 to the Consolidated Financial Statements
regarding commitments and contingencies.

In December 2002, FASB issued Statement of Financial Accounting Standards No.
148 ("SFAS 148"), "Accounting for Stock-Based Compensation -- Transition and
Disclosure." SFAS 148 amends SFAS 123, "Accounting for Stock-Based Compensation"
and allows two alternative methods of transition for a voluntary change to the
more preferable fair value based method of accounting for stock-based employee
compensation. These methods avoid the ramp-up effect arising from prospective
application of the fair value based method. The Statement also amends Accounting
Principles Board Opinion No. 28 ("APB 28"), "Interim Financial Reporting," and
requires disclosure of comparable information for all companies regardless of
whether, when, or how an entity adopts the fair value based method of accounting
and requires the inclusion of the disclosure in financial reports for interim
periods. SFAS 148 is effective for interim and year-end financial statements for
fiscal years ending after December 15, 2002. As previously disclosed, the
Company will continue to account for stock compensation pursuant to APB 25.
However, it has adopted the disclosure provisions of SFAS 148 and continues to
evaluate its options.

In January 2003, FASB issued FASB Interpretation No. 46 ("FIN 46"),
"Consolidation of Variable Interest Entities," which addresses the reporting and
consolidation of variable interest entities as they relate to a business
enterprise. This



                                       6


interpretation incorporates and supercedes the guidance set forth in Accounting
Research Bulletin No. 51 ("ARB 51"), "Consolidated Financial Statements." It
requires the consolidation of variable interests into the financial statements
of a business enterprise if that enterprise holds a controlling financial
interest via other means than the traditional voting majority. The requirements
of FIN 46 are effective immediately for variable interest entities created after
January 31, 2003 and thereafter, or the first reporting period after June 15,
2003 for variable interest entities for which an enterprise holds a variable
interest that it acquired prior to February 1, 2003. The Company does not expect
that the adoption of FIN 46 will have a material impact on its future
consolidated financial statements.

MARKET RISK

The Company is exposed to the effect of interest rate changes and foreign
currency fluctuations. Due to the immateriality of potential impacts from
changes in these rates, the Company does not use derivative contracts to manage
these risks.

INTEREST RATE RISK

The fair value of the Company's cash and short-term investment portfolio at
March 31, 2003 approximated carrying value. Given the short-term nature of these
instruments, market risk, as measured by the change in fair value resulting from
a hypothetical 10% change in interest rates, is not material.

The Company's objectives in managing exposure to interest rate changes are to
limit the impact of interest rate changes on earnings and cash flows and to
lower overall borrowing costs. To achieve these objectives, the Company
maintains fixed rate debt as a percentage of its net debt in a percentage range
set by policy. The impact to earnings and cash flows from a hypothetical 10%
decrease in the Company's debt specific borrowing rates at March 31, 2003 was
not material.

FOREIGN EXCHANGE RISK

The Company operates subsidiaries, and is associated with licensees and
affiliates operating solely in countries outside of the United States, and in
currencies other than the U.S. dollar. Consequently, these operations are
inherently exposed to risks associated with fluctuation in the value of the
local currencies of these countries compared to the U.S. dollar. The effect of a
hypothetical adverse change of 10% in exchange rates (a strengthening of the
U.S. dollar) was immaterial and would be largely offset by cash activity.

OFF-BALANCE SHEET ARRANGEMENTS

The Company uses various structures for the financing of operating equipment,
including borrowing, operating and capital leases, and sale-leaseback
arrangements. All debt, including the discounted value of future minimum lease
payments under capital lease arrangements, is presented in the balance sheet.
The Company also has exposure under performance guarantees by contractual joint
ventures and indemnification of its bonding agent and licensees. However, the
Company has never experienced any material adverse effects to financial
position, results of operations or cash flows relative to these arrangements.
The Company has no other off-balance sheet financing arrangements or
commitments.

MANAGEMENT CHANGES

Effective April 1, 2003, Thomas S. Rooney, Jr. was named President and Chief
Operating Officer, reporting to Anthony W. (Tony) Hooper, who remains Chairman
and Chief Executive Officer. The new position was created to lead all of the
Company's operating segments, which now report directly to Mr. Rooney. The
addition of Mr. Rooney, who has over 20 years of experience with large
construction companies, brings additional strength to the management team and
will aid in the integration and development of the Company's business units.

FORWARD-LOOKING INFORMATION

This quarterly report contains various forward-looking statements that are based
on information currently available to management and on management's beliefs and
assumptions. When used in this document, the words "anticipate," "estimate,"
"believes," "plans," and similar expressions are intended to identify
forward-looking statements, but are not the exclusive means of identifying such
statements. Such statements are subject to risks and uncertainties. The
Company's actual results may vary materially from those anticipated, estimated
or projected due to a number of factors, such as the competitive environment for
the Company's products and services, the geographical distribution and mix of
the Company's work, the timely award or cancellation of projects, political
circumstances impeding the progress of work, and other factors set forth in
reports and other documents filed by the Company with the Securities and
Exchange Commission from time to time. The Company does not assume a duty to
update forward-looking statements. Please use caution and do not place reliance
on forward-looking statements.



                                       7


                           PART II - OTHER INFORMATION

ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K

         (a) The exhibits filed as part of this Quarterly Report on Form 10-Q/A
are listed on the annexed Index to Exhibits.

         (b) On March 12, 2003, the Company filed a Current Report on Form 8-K,
under Item 9, to provide the Company's press release, dated March 12, 2003,
announcing the creation of a Chief Operating Officer position. In addition, on
April 25, 2003, the Company filed a Current Report on Form 8-K, under Item 9 and
pursuant to Item 12, to provide the Company's earnings release, dated April 24,
2003, announcing its financial results for the fiscal quarter ended March 31,
2003. The Company also filed a Current Report on Form 8-K on May 1, 2003, under
Item 9 and pursuant to Item 12, to provide a transcript of its April 25, 2003
conference call held to announce and discuss its financial results for the
fiscal quarter ended March 31, 2003.









                                       8


                                   SIGNATURES


Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.


                                      INSITUFORM TECHNOLOGIES, INC.




June 10, 2003                          /s/ Joseph A. White
                                      -----------------------------------
                                      Joseph A. White
                                      Vice President - Chief Financial Officer
                                      Principal Financial and Accounting Officer









                                       9


                                 CERTIFICATIONS


I, Anthony W. Hooper, certify that:

1. I have reviewed this quarterly report on Form 10-Q/A of Insituform
Technologies, Inc.;

2. Based on my knowledge, this quarterly report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this quarterly
report;

3. Based on my knowledge, the financial statements, and other financial
information included in this quarterly report, fairly present in all material
respects the financial condition, results of operations and cash flows of the
registrant as of, and for, the periods presented in this quarterly report;

4. The registrant's other certifying officers and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-14 and 15d-14) for the registrant and we have:

a) designed such disclosure controls and procedures to ensure that material
information relating to the registrant, including its consolidated subsidiaries,
is made known to us by others within those entities, particularly during the
period in which this quarterly report is being prepared;

b) evaluated the effectiveness of the registrant's disclosure controls and
procedures as of a date within 90 days prior to the filing date of this
quarterly report (the "Evaluation Date"); and

c) presented in this quarterly report our conclusions about the effectiveness of
the disclosure controls and procedures based on our evaluation as of the
Evaluation Date;

5. The registrant's other certifying officers and I have disclosed, based on our
most recent evaluation, to the registrant's auditors and the audit committee of
registrant's board of directors (or persons performing the equivalent function):

a) all significant deficiencies in the design or operation of internal controls
which could adversely affect the registrant's ability to record, process,
summarize and report financial data and have identified for the registrant's
auditors any material weaknesses in internal controls; and

b) any fraud, whether or not material, that involves management or other
employees who have a significant role in the registrant's internal controls; and

6. The registrant's other certifying officers and I have indicated in this
quarterly report whether or not there were significant changes in internal
controls or in other factors that could significantly affect internal controls
subsequent to the date of our most recent evaluation, including any corrective
actions with regard to significant deficiencies and material weaknesses.


Date: June 10, 2003
                                  /s/ Anthony W. Hooper
                                  --------------------------------------------
                                  Anthony W. Hooper
                                  Chairman and Chief Executive Officer









                                       10


I, Joseph A. White, certify that:

1. I have reviewed this quarterly report on Form 10-Q/A of Insituform
Technologies, Inc.;

2. Based on my knowledge, this quarterly report does not contain any untrue
statement of a material fact or omit to state a material fact necessary to make
the statements made, in light of the circumstances under which such statements
were made, not misleading with respect to the period covered by this quarterly
report;

3. Based on my knowledge, the financial statements, and other financial
information included in this quarterly report, fairly present in all material
respects the financial condition, results of operations and cash flows of the
registrant as of, and for, the periods presented in this quarterly report;

4. The registrant's other certifying officers and I are responsible for
establishing and maintaining disclosure controls and procedures (as defined in
Exchange Act Rules 13a-14 and 15d-14) for the registrant and we have:

a) designed such disclosure controls and procedures to ensure that material
information relating to the registrant, including its consolidated subsidiaries,
is made known to us by others within those entities, particularly during the
period in which this quarterly report is being prepared;

b) evaluated the effectiveness of the registrant's disclosure controls and
procedures as of a date within 90 days prior to the filing date of this
quarterly report (the "Evaluation Date"); and

c) presented in this quarterly report our conclusions about the effectiveness of
the disclosure controls and procedures based on our evaluation as of the
Evaluation Date;

5. The registrant's other certifying officers and I have disclosed, based on our
most recent evaluation, to the registrant's auditors and the audit committee of
registrant's board of directors (or persons performing the equivalent function):

a) all significant deficiencies in the design or operation of internal controls
which could adversely affect the registrant's ability to record, process,
summarize and report financial data and have identified for the registrant's
auditors any material weaknesses in internal controls; and

b) any fraud, whether or not material, that involves management or other
employees who have a significant role in the registrant's internal controls; and

6. The registrant's other certifying officers and I have indicated in this
quarterly report whether or not there were significant changes in internal
controls or in other factors that could significantly affect internal controls
subsequent to the date of our most recent evaluation, including any corrective
actions with regard to significant deficiencies and material weaknesses.


Date: June 10, 2003
                                  /s/ Joseph A. White
                                  --------------------------------------------
                                  Joseph A. White
                                  Vice President and Chief Financial Officer



                                       11


                                INDEX TO EXHIBITS

10.1     Note Purchase Agreement (the "Note Purchase Agreement") dated as of
         April 24, 2003 among the Company and each of the lenders listed
         therein.

10.2     Amended and Restated Intercreditor Agreement dated as of April 24, 2003
         among Bank of America, N.A. and the Noteholders.

10.3     Employment Letter dated March 7, 2003 between the Company and Thomas S.
         Rooney, Jr. (1)

99.1     Certification of Anthony W. Hooper pursuant to 18 U.S.C. Section 1350,
         as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

99.2     Certification of Joseph A. White pursuant to 18 U.S.C. Section 1350, as
         adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

-----------------------------------

(1)      Management contract or compensatory plan or arrangement.
























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