NATIONAL PROFESSIONAL SERVICES FIRM, MNP, EXPANDS PRESENCE IN EASTERN ONTARIO WITH MERGERS IN OTTAWA, GATINEAU AND RURAL EASTERN ONTARIO

 MNP Welcomes Two Firms with over Two Hundred Team Members, Making MNP one of the Largest Firms in the Region

CALGARY, AB, Sept. 21, 2026 /CNW/ -- MNP, one of Canada's largest national professional services firms, is pleased to announce that it has merged with two Eastern Ontario-based professional services firms, with offices in Ottawa, Gatineau, Carleton Place, Cobden, Kemptville, Morrisburg, Pembroke and Winchester, effective today, September 21, 2026.

A total of 25 partners, including leaders Michael Hayward and Benjamin Mann, supported by over 200 team members, have joined MNP. Both firms have been providing a wide range of professional services, including accounting, tax and advisory services, to Private Enterprise organizations of all sizes throughout the Eastern Ontario area for over five decades and will continue to provide these services with MNP.

Now combined with MNP's existing presence in Ottawa and surrounding markets, MNP has over 700 partners and team members supporting their business community, making it one of the largest firms in the region. MNP has steadily invested in Eastern Ontario since 2014, with numerous mergers which have led to locations in Ottawa, Gatineau, Hawkesbury, Casselman, Brockville and Cornwall.

Jared Bourne, CPA, CA, Executive Vice President, Ontario outside GTA at MNP, said that the move reflects MNP's continued commitment to investing in the region:

"We are very happy to welcome both firms' teams and clients to MNP. Like our existing team across Eastern Ontario, they have a deep understanding of the region's business community and an entrepreneurial focus on helping mid-market organizations thrive. By bringing our teams together, we will be even better positioned to support all our clients and communities with a wide breadth of services."

Michael Hayward, CPA, CA, says the merger bolsters their culture and strengthens his team's ability to support their clients:

"As we looked to grow our firm but maintain the culture, autonomy and agility that enables us to offer the tailored solutions our clients expect, we knew that MNP's Canadian partner-owned and partner-led approach was the right fit for our team. They furthermore strengthen our current service offerings and bring additional technology and resources that will better position our team and our clients for long-term success."

Founded in 1958, MNP has grown to more than 150 locations across Canada and delivers a wide range of services and specialized expertise in every sector and area of business. In addition to tax and accounting, MNP offers a diverse range of consulting and advisory services, including succession planning, estate planning, enterprise risk, corporate finance, valuation and litigation support, insolvency and restructuring, digital strategies, cross-border taxation, and much more.

"We are thrilled to once again be expanding our presence in Ontario and Quebec with these significant strategic mergers." added Jason Tuffs, Chief Executive Officer at MNP. "The National Capital Region and Eastern Ontario are key growth markets for us in our strategic plan, and with these mergers we add two great firms that share our vision, culture, entrepreneurial spirit and trusted business approach that define MNP."

Benjamin Mann, CPA, CA, added that one of their deciding factors to join MNP was their national and regional agriculture expertise as the largest provider of professional services to the Canadian agriculture sector.

"As our firm's offices are all based in Rural Eastern Ontario, which is heavily concentrated in the agricultural industry, it was important to join a firm that understood the space. With MNP's commitment to agriculture clients, including their existing offices in Hawkesbury, Cornwall, Brockville and Casselman, we knew we would work well together. When you're making a move as significant as this, the "fit" has to be right for everyone – your people, clients and community. We couldn't be more excited about joining forces with MNP." 

The teams from both firms will remain at their current offices, which will become new MNP locations.

About MNP LLP

National in scope and local in focus, MNP is one of Canada's leading professional services firms -- proudly serving individuals, businesses, and organizations since 1958. Through the development of strong relationships, we provide client-focused accounting, consulting, tax, and digital services. Our clients benefit from personalized strategies with a local perspective to fuel success wherever business takes them. For more information, visit www.mnp.ca

SOURCE MNP

For more information, please contact: Nick Greengfield, Senior Vice President, Marketing, MNP, at [email protected]