Annual list from Site News highlights individuals from across the Canadian construction industry
OTTAWA, July 17, 2025 – The Mechanical Contractors Association of Canada (MCAC) is proud to share that Chief Executive Officer Tania Johnston has been named one of Construction’s Most Influential People for 2025 by SiteNews.
As the first woman to lead MCAC in its 100+ year history, Johnston has helped grow the association to represent more than 800 firms across the country. Her leadership has been instrumental in advancing workforce development, middle management training, and the national student chapter program. A strong advocate for mental health awareness and women in the trades, Johnston has consistently championed initiatives that build a more inclusive and resilient industry.
“Tania’s 25 years of dedication to the mechanical contracting industry have been exemplified by her tireless commitment to supporting members and our sector. Her work has strengthened MCAC’s impact across Canada, and we are proud to see this work being recognized on a national stage.,” said Brad Mason, President and Chair of the Mechanical Contractors Association of Canada.
Under her leadership, MCA Canada has increased its role in national policy discussions and reinforced its commitment to supporting contractors at all levels.
“The future of construction is evolving, and with it, the responsibility to lead with purpose. I’m honoured by this recognition and committed to ensuring our sector continues to grow with integrity, innovation, and inclusivity at its core,” says Johnston.
The Construction’s Most Influential People list, launched by SiteNews in 2024, highlights individuals from across Canada whose leadership is moving the industry forward, whether through policy, advocacy, innovation, or business leadership.
See the full list of this year’s recipients at readsitenews.com/most-influential-in-construction/2025/.
About the Mechanical Contractors Association of Canada
The Mechanical Contractors Association of Canada, established in 1895, is the unified voice of the mechanical contracting industry. Our members are contractors of all sizes engaged in such disciplines as plumbing, heating, ventilation, air conditioning, controls systems, medical gases, welding, and fire suppression primarily within the industrial, commercial, institutional and service sectors.