Analyst Coverage

Medidata Solutions, Inc. is covered by the following analysts.

Firm Analyst
Dougherty & Company
Gene   Mannheimer
Jefferies
David Windley  
J.P. Morgan
Sterling Auty  
KeyBanc Capital Markets
Donald Hooker  
Morgan Stanley
Brian Essex  
Needham & Company
Scott Berg  
Piper Jaffray
Sean Wieland  
RBC Capital Markets
George   Hill
SunTrust Robinson Humphrey
Sandy Draper  
Wells Fargo
Jamie Stockton  

Medidata Solutions, Inc. is followed by the analysts listed above. Please note that any opinions, estimates or forecasts regarding Medidata Solutions, Inc.'s performance made by these analysts are theirs alone and do not represent opinions, forecasts or predictions of Medidata Solutions, Inc. or its management. Medidata Solutions, Inc. does not by its reference above or distribution imply its endorsement of or concurrence with such information, conclusions or recommendations.

Investor Contact

Betsy Frank
Head of Investor Relations
+1 917 522 4620
bfrank@mdsol.com

Anthony D'Amico
Senior Director, Investor Relations
+1 732 767 4331
adamico@mdsol.com