Insituform Technologies, Inc. (the "Company") issued an earnings release on July 23, 2009, to announce its financial results for the quarter ended June 30, 2009. A copy of the July 23, 2009 earnings release is furnished herewith as Exhibit 99.1. On July 24, 2009, the Company held a conference call in connection with its July 23, 2009 earnings release. A transcript of the conference call is furnished herewith as Exhibit 99.2.

The information in this Current Report on Form 8-K, including Exhibits 99.1 and 99.2, is being furnished and shall not be deemed "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended.

(d) The following exhibits are filed as part of this report:

          Exhibit Number  Description

          99.1            Earnings Release of Insituform Technologies, Inc.,
                          dated July 23, 2009, filed herewith.

          99.2            Transcript of Insituform Technologies, Inc.'s July 24,
                          2009 conference call, filed herewith.