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View A J Smith's top competitors like AS Contrera/Mr. Furnace, Air Makers Inc., and Airzone HVAC Services LTD.

Lennox
Lennox (NYSE: LII) is a leading provider of innovative climate control solutions for heating, ventilation, air conditioning, and refrigeration (HVACR) markets. Beginning over a century ago, Lennox has built a strong heritage of Innovation and Responsibility. Our position as an innovation leader continually inspires us to promote more efficient energy use and a healthier environment through our product operations. Our engaged and diverse workforce is committed to providing climate control solutions that provide the most value and comfort for our customers. We are proud to have instilled a shared sense of responsibility and commitment among our approximately 10,000 employees located throughout North America and Asia. Lennox is publicly traded on the NYSE and has paid steady dividends on profits. (LII) The Corporation's brands include Lennox, Allied Air, Armstrong Air, Heatcraft, Ducane, Magic-Pak, and Friga-Bohn. Lennox is an Equal Opportunity Employer and supports a diverse, inclusive work environment.
Richardson, Texas, US
Private
$5.3B Revenue
http://www.lennox.com
7.3K Employees
Black & McDonald Limited
Black & McDonald is an integrated, multi-trade service provider that safely delivers high-quality construction, facilities management, and technical solutions. We are a family-owned and operated company with over 6,500 employees working out of 40+ offices across North America. With more than 100 years of diverse market experience across North America, we are a forward-thinking organization with a strong track record of delivering customer-focused solutions and operational excellence. For more information on our licenses visit: https://blackandmcdonald.com/licenses/
Toronto, CA
Private
$2.1B Revenue
https://blackandmcdonald.com/
3.1K Employees
Direct Energy
Direct Energy is one of North America's largest retail providers of electricity, natural gas and home and business energy-related services. We've been around for decades and are proud to serve our community with a variety of plans to meet the needs of our customers.
Houston, Texas, US
Private
$4.2B Revenue
https://www.directenergy.com
2.1K Employees
G2 Leader Summer 2026 G2 Best Est ROI Mid-Market Summer 2026 G2 Easiest Admin Mid-Market Summer 2026 G2 Most Implementable Summer 2026 G2 Best Results Mid-Market Summer 2026 G2 Lead Capture Mid-Market Summer 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2026
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