Mark Patry


“Welch has provided me with tremendous opportunities to meet new people. It is especially gratifying to see our clients’ succeed, and to have helped make it happen.”

Mark Patry has over 25 years of experience in estates, not-for-profits and owner-managed businesses.

Mark has been with Welch LLP since graduating from Carleton University in 1983. He received his CA in 1985 and has been a Partner since 2007.

Mark has been leading assurance and non-review teams in a broad range of client groups primarily within the small and medium business enterprise area. Mark has a strong client base in for-profit oriented businesses and is a main contact for the firm’s automotive dealership practice.

Quick Facts

Joined Welch in



Bachelor of Commerce, Carleton University


CPA Ontario, CPA Canada


Owner-managed businesses, estates, automotive dealerships and transportation firms.

Community involvement

Treasurer of the Ottawa Riverkeeper, member of several fishing clubs and naturalist groups

Hobbies/ talents

Fishing, bird watching, photography

Most memorable vacation

Trips to the Pacific coast of Mexico, birding the Mexican countryside and seeing the real Mexico.

Favorite music

60’s and 70s – I like the old stuff!

Personal accomplishment/ most proud of?

Achieving my CA designation gave me the biggest rush; I also take immense pride in seeing my clients succeed in their goals.