Roper (ROP) 10-Q 2008 Q3 Quarterly report

EXHIBIT 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Roper Industries, Inc. (the “Company”) on Form 10-Q for the period ending September 30, 2008, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Brian D. Jellison, Chief Executive Officer of the Company certify, pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge that:

1. The Report fully complies with the requirements of section 13(a) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company for the dates and periods covered by the Report.

This certificate is being made for the exclusive purpose of compliance by the Chief Executive Officer of the Company with the requirements of Section 906 of the Sarbanes-Oxley Act of 2002, and may not be disclosed, distributed or used by any person or for any reason other than specifically required by law.

/s/ Brian D. Jellison

Brian D. Jellison

Chairman, President and Chief Executive Officer

November 7, 2008