Legacy
Since 2007
19 years of continuous editorial operation. Listings audited and re-audited as the directory ages — no stale 2008 records masquerading as live.
Top Listed Entities in Commercial HVAC
Ranking weights editorial tier and entity health score across the full listed set. No listings here carry the verification badge yet — they appear in order of editorial signal. Last updated .
Top 5%Editor’s Pick
A
Ainsworth
Toronto, Canada
AinsworthToronto OntarioJSON-LD: HVACBusiness
Ainsworth is one of Canada's largest integrated multi-trade commercial HVAC, mechanical, electrical, and facilities services companies, founded in 1994 and headquartered in Toronto, Ontario. A GDI Integrated Facility Services company, Ainsworth generates over $500 million in annual revenue with thousands of employees across Canada and the United States providing HVAC installation, chiller maintenance, building automation, boiler services, refrigeration, and 24/7 facilities support for commercial, institutional, healthcare, retail, and industrial clients. The company serves major Canadian corporations, hospitals, universities, and government facilities.
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McKinstry
JSON-LD
Seattle, United StatesHealth 55/100McKinstry is a privately-held national construction and energy services company founded in 1960 and headquartered in Seattle, Washington. Led by CEO Elyse McKinstry, the company generates $2.5 billion in annual revenue providing commercial HVAC, mechanical contracting, design-build, energy solutions, and facility services across the United States. McKinstry is known for its integrated approach combining construction with energy management, sustainable building retrofits, and decarbonization projects for higher education, healthcare, commercial real estate, and government clients, with particular strength in the Western United States.
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