We Solve Your

Regulatory Puzzles

Providing Quality Service

Since it’s founding in 1981 by David McCarthy, McCarthy Consultant Services Inc. (MCSI) has played a vital role in the world of Canadian regulatory affairs. Shaped by the belief that sound regulatory management is the key to business success, MCSI has evolved into an industry leader across Canada and throughout the world. MCSI is trusted and valued by the pharmaceutical, biotechnology, medical device, food, natural health products and cosmetic industries for its efficient, timely, and effective regulatory work.


News and Events

Happy Family Day weekend from MCSI! Our offices will be closed on Monday February 19th, to spend time with our families.


MCSI President Stephen McCarthy is attending the DIA’s (Drug Information Association) conference in Ottawa. The Canada Annual Meeting will deliver a comprehensive overview of the current pharmaceutical, medical device, and/or diagnostic landscapes in Canada.


Happy Thanksgiving from MCSI and our Associates! Our offices will be closed Monday October 9th, to spend the holiday with family and friends.


We invite you to contact us!

McCarthy Consultant Services Inc.
14-320 Harry Walker Parkway North,
Newmarket, Ontario Canada L3Y 7B4

Phone: 905.836.0033
E-Mail: accounting@mccarthyconsultant.com


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