Insituform Technologies, Inc. (the "Company") issued an earnings release on October 27, 2009, to announce its financial results for the quarter ended September 30, 2009. A copy of the October 27, 2009 earnings release is furnished herewith as Exhibit 99.1. On October 28, 2009, the Company held a conference call in connection with its October 27, 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
                        October 27, 2009, filed herewith.

         99.2           Transcript of Insituform Technologies, Inc.'s October 28,
                        2009 conference call, filed herewith.