Attached files

file filename
EX-21.1 - SUBSIDIARIES OF MEDIDATA SOLUTIONS, INC. - Medidata Solutions, Inc.mdso-12312014xex211.htm
EX-32.1 - CERTIFICATION OF CHIEF EXECUTIVE OFFICER - Medidata Solutions, Inc.mdso-12312014xex321.htm
EX-31.2 - RULE 13A-14(A) OR 15D-14 CERTIFICATION OF CHIEF FINANCIAL OFFICER - Medidata Solutions, Inc.mdso-12312014xex312.htm
EX-31.1 - RULE 13A-14(A) OR 15D-14 CERTIFICATION OF CHIEF EXECUTIVE OFFICER - Medidata Solutions, Inc.mdso-12312014xex311.htm
EXCEL - IDEA: XBRL DOCUMENT - Medidata Solutions, Inc.Financial_Report.xls
10-K - FORM 10-K - Medidata Solutions, Inc.a10-kxq42014.htm
EX-32.2 - CERTIFICATION OF CHIEF FINANCIAL OFFICER - Medidata Solutions, Inc.mdso-12312014xex322.htm
Exhibit 23.1


CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement Nos. 333-198262, 333-192861, 333-188349, 333-181818, and 333-160461 on Form S-8 of our reports dated March 2, 2015, relating to the consolidated financial statements and financial statement schedule of Medidata Solutions, Inc. and subsidiaries (the "Company"), and the effectiveness of the Company's internal control over financial reporting, appearing in this Annual Report on Form 10-K of Medidata Solutions, Inc. for the year ended December 31, 2014.

/s/ DELOITTE & TOUCHE LLP
New York, New York
March 2, 2015