Exhibit 99

FOR IMMEDIATE RELEASE

                                           FOR MORE INFORMATION, PLEASE CONTACT
                                           PAUL WAGMAN AT 314-982-1726

          INSITUFORM TECHNOLOGIES, INC. ELECTS NEW CEO AND NEW CHAIRMAN

         ST. LOUIS, July 22, 2003 - Thomas S. Rooney, Jr., President and Chief
Operating Officer of Insituform Technologies, Inc. (Nasdaq National Market:
INSU) ("Insituform") has been elected Chief Executive Officer and a member of
the board of directors, the company announced today.

         At the same time, Alfred L. Woods, an independent member of the
company's board of directors, was elected non-executive chairman of the board.

         The board announced the elections during its regularly scheduled board
meeting today. The changes are effective immediately. Rooney will remain as
President, with the additional duties of Chief Operating Officer.

         Rooney and Woods replace Anthony W. (Tony) Hooper, 55, who has resigned
as CEO and chairman of the board to pursue other interests.

         "We feel fortunate in being able to turn to Tom Rooney," Woods said.
"Insituform needs a renewed focus on operations, and especially on integrating
and realizing the value of its acquisitions. Tom combines more than 20 years of
experience in the construction industry with excellent managerial and
operational skills as well as acquisition experience and an understanding of our
proprietary technology. His appointment as chief operating officer just a few
months ago came only after a thorough, national search in which he emerged as
the hands-down choice."

         "Insituform is grateful to Tony Hooper for his many outstanding
contributions to the company," Woods continued. "He was a major part of the team
that transformed Insituform from a single technology licensing company and a
group of fragmented regional installation companies into an integrated,
international corporation offering the industry's broadest range of
infrastructure capabilities."

         "I am excited by the opportunity to lead Insituform," Rooney said. "The
company is far and away the industry leader in technology, R&D and the ability
to innovate. Our range of capabilities and depth of experience in the
rehabilitation of piping systems, as well as new trenchless construction, are
unmatched. Our balance sheet is without peer in the industry. Our potential --
especially in view of the nation's need to rebuild its aged infrastructure -- is
enormous."

         Rooney, 43, joined Insituform April 1. Before that, he had been Senior
Vice President and Southeast Regional Manager of Gilbane Building Co., a $2.7
billion privately held construction firm based in Providence, R.I. In that
capacity, he was responsible for all of Gilbane's operations in Georgia, South
Carolina, Alabama and Florida; earlier, he had led the company's business
development team for the Midwest. In both assignments, the operations under his
leadership achieved dramatic growth.

         He had worked previously with Centex Golden Construction Co., based in
San Diego, and Turner Construction Co., of New York City.




         Rooney earned a Bachelor of Science degree in Civil Engineering from
Cornell University in 1982. He earned his Master of Business Administration
degree from the University of Chicago in 1991.

         Woods, 59, has been an independent member of Insituform's board since
1997. He has served as chair of the Corporate Governance & Nominating Committee
and as a member of the Compensation Committee. He is president of Woods Group, a
management consulting company based in Williamsburg, Va.

         Insituform Technologies, Inc. is a leading worldwide provider of
proprietary technologies and services for new construction and rehabilitation of
sewer, water and other underground piping systems without digging and
disruption. More information about the company can be found on its Internet
site, www.insituform.com.

         This press release contains forward-looking statements, which are
inherently subject to risks and uncertainties that could cause actual results to
differ materially from those projected. Factors that could affect results
include, among others, the competitive environment for Insituform's products and
services, the geographical distribution and mix of Insituform's work, and other
factors set forth in reports and documents filed by Insituform with the
Securities and Exchange Commission from time to time. Insituform does not assume
a duty to update forward-looking statements. Please use caution and do not place
reliance on forward-looking statements.



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