Attached files

file filename
10-K - FORM 10-K - Medidata Solutions, Inc.d10k.htm
EX-32.1 - CERTIFICATIONS OF C.E.O. PURSUANT TO 18 U.S.C. SECTION 1350 - Medidata Solutions, Inc.dex321.htm
EX-32.2 - CERTIFICATIONS OF C.F.O. PURSUANT TO 18 U.S.C. SECTION 1350 - Medidata Solutions, Inc.dex322.htm
EX-31.1 - RULE 13A-14(A) OR 15D-14 CERTIFICATION OF C.E.O. - Medidata Solutions, Inc.dex311.htm
EX-31.2 - RULE 13A-14(A) OR 15D-14 CERTIFICATION OF C.F.O. - Medidata Solutions, Inc.dex312.htm

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement No. 333-160461 on Form S-8 of our report relating to the consolidated financial statements and financial statement schedule of Medidata Solutions, Inc. (the “Company”) dated March 15, 2010, appearing in this Annual Report on Form 10-K of the Company for the year ended December 31, 2009.

/s/ Deloitte & Touche LLP

New York, New York

March 15, 2010