Beginning on August 18, 2009, representatives of Insituform Technologies, Inc. (the "Company") will be making presentations to various investors from time to time accompanied by a slide presentation. A copy of the slide presentation is attached hereto as Exhibit 99.1.

The Company is furnishing the information in this Current Report on Form 8-K and in Exhibit 99.1 to comply with Regulation FD. Such information shall not be deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section, and shall not be deemed to be incorporated by reference into any of the Company's filings under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date hereof and regardless of any general incorporation language in such filings, except to the extent expressly set forth by specific reference in such a filing.

(d) Exhibits

Exhibit
Number  Description

99.1    Investor Slide Presentation dated August, 2009

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