top of page



Sean Marek, MAcc, CPA, CA

Founding Partner

204 992 7201 

Alan Martyszenko.jpg

Al Martyszenko, CA, CFA, CBV

Founding Partner

204 992 7205

Brittni Reimer.jpg

Brittni Marek, MBA, CPA, CA


Sean obtained his CA designation in 1998 and has been a partner since 2000. He enjoys teaching professional development courses and is a past lecturer for CPA Manitoba. 

Sean completed CPA Canada's In-Depth Tax Course in 2012. His practice focuses on small and medium sized companies, as well as incorporated professionals.

Sean has held numerous board positions in the community including Habitat for Humanity (2005-2009) and Young Associates (2008-2013).

Al became a CA in 1983. He is a former partner of a national firm and  formerly served as CEO of a major building materials company. His current practice focuses on business valuations, litigation support, and corporate finance.

Brittni joined the firm in 2011 and obtained her CPA (CA) designation in 2013. She has completed CPA Canada’s In-Depth Tax Course and specializes in corporate taxation.

Mike headshot_edited.jpg

Mike Cohen, CPA


Mike joined M Group in 2018 and successfully wrote the CFE to attain his CPA designation in 2019. He is currently pursuing CPA Canada's In Depth Tax Course


Joanne Ruiz

Office Administrator

Team members not pictured above:

Anastasia Pfann, CPA

Senior Accountant

Sydney Weatherall, CPA

Senior Accountant

Dustin Thomas

Senior Accountant

Josh Kleinsasser

Staff Accountant

Paul Adams

CPA Student Staff Accountant

Richelle Healey

Accounting Technician

Tammie Lang

Receptionist/Administrative Assistant


Our team of seasoned professionals provide tax-efficient accounting strategies and business advice. Call or message us for a free consultation today.


We're always looking for talent. If you'd like to join our team, please submit your CV in confidence.

join us
bottom of page