Verified Nov 2026
Thermal & Fluid Systems
·

Brea, California
·
Since 1997
CoolSys is a refrigeration and HVAC systems provider headquartered in Brea, California, founded in 1997. It employs between 1,000 and 5,000 people, with an estimated annual revenue of $250 million to $500 million, and is privately held. The company serves retail, food service, commercial, industrial, education, healthcare, government, and data center customers, with work spanning engineering, installation, maintenance, and system decommissioning. In 2025 it unified more than 20 legacy brands under the CoolSys name, and it has since reported adding another national retailer to its portfolio of more than 42,500 locations.
CoolSys - Refrigeration and Hvac Systems at a glance
Revenue
$250-500M
Est. band
Employees
1,000-5,000
Founded
1997
Headquarters
Brea, California
Industries
Automotive
Electric Vehicles
Construction
Medical
Renewable Energy
Industrial Equipment
Overview
CoolSys is a refrigeration and HVAC systems provider headquartered in Brea, California, founded in 1997. It employs between 1,000 and 5,000 people, with an estimated annual revenue of $250 million to $500 million, and is privately held. The company serves retail, food service, commercial, industrial, education, healthcare, government, and data center customers, with work spanning engineering, installation, maintenance, and system decommissioning. In 2025 it unified more than 20 legacy brands under the CoolSys name, and it has since reported adding another national retailer to its portfolio of more than 42,500 locations.
At a glance
Attribute | Detail |
|---|---|
Founded | 1997 |
Headquarters | Brea, California |
Employees | 1,000-5,000 |
Revenue | $250-500M (estimated) |
Primary capability | Thermal & Fluid Systems |
What CoolSys - Refrigeration and Hvac Systems makes
The company offers custom engineering and design, installation, repairs, predictive maintenance, energy optimization, emissions reduction, and natural refrigerant conversion, including CO2-based systems.
Products and capabilities described on the company's own site include Electronics, Plastic, Metal Fabrication, Aluminum, Steel, Emissions (source: coolsys.com).
Latest developments
2026-06-18 — CoolSys is proud to welcome another major national retailer to our growing portfolio of 42,500+ locations served across the U.S. 🏬 | CoolSys - Refrigeration and HVAC Systems (linkedin.com)
2025-10-24 — Source Refrigeration HVAC is now CoolSys: HVAC-R Nationwide (coolsys.com)
2025-10-24 — CE Holt Refrigeration is now CoolSys -HVAC & Refrigeration (coolsys.com)
2025-10-23 — Arjae HVAC & Metal Fabrication is Now CoolSys Covering OR, WA (coolsys.com)
2025-09-04 — CoolSys secures $39.5M: A game-changer for cooling industry - FreightWaves (freightwaves.com)
Company details
CoolSys reports serving more than 42,500 locations across the United States, Canada, and Mexico, and the record lists automotive, electric-vehicle, renewable-energy, and medical as additional industries served. CoolSys - Refrigeration and Hvac Systems was founded in 1997, has an estimated 1,000-5,000 employees, and is headquartered in Brea, California.
Frequently asked questions
What does CoolSys - Refrigeration and Hvac Systems make?
CoolSys is a refrigeration and HVAC systems provider headquartered in Brea, California, founded in 1997. It employs between 1,000 and 5,000 people, with an estimated annual revenue of $250 million to $500 million, and is privately held. The company serves retail, food service, commercial, industrial, education, healthcare, government, and data center customers, with work spanning engineering, installation, maintenance, and system decommissioning. In 2025 it unified more than 20 legacy brands under the CoolSys name, and it has since reported adding another national retailer to its portfolio of more than 42,500 locations.
Where is CoolSys - Refrigeration and Hvac Systems headquartered?
CoolSys - Refrigeration and Hvac Systems is headquartered in Brea, California (145 South State College Boulevard, Brea, California, 92821).
When was CoolSys - Refrigeration and Hvac Systems founded?
CoolSys - Refrigeration and Hvac Systems was founded in 1997.
How big is CoolSys - Refrigeration and Hvac Systems?
CoolSys - Refrigeration and Hvac Systems has an estimated 1,000-5,000 employees, with revenue in the $250-500M range (estimated).
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Last verified Nov 2026. Is this your company? Request a correction.
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