Calvert Controls: Detailed Company Information & Corporate Profile
Summary
Calvert Controls, founded in 1986, operates as an independent company from its headquarters in Prince Frederick, Maryland. With a workforce of 100‑200 employees, the firm generates annual revenues between $5 million and $25 million and serves the Washington Metropolitan Area under SIC code 7200.
Specializing in building controls and mechanical engineering, Calvert Controls delivers welding services, chiller and cooling tower solutions, HVAC and boiler installations, and advanced building automation through partners such as Honeywell and Mitsubishi. A 24/7 service department supports clients around the clock, while Service Dispatcher Heather Harris coordinates day‑to‑day operations.
| Calvert Controls Website | calvertcontrols.com |
| Phone Number | 301-855-1986 |
| Industries | |
| Calvert Controls Headquarters Address | 105 Adelina Rd, Prince Frederick, Maryland, 20678 US |
| Company Size | 100-200 employees |
| Specialities & Services | controls, welding, chillers, cooling towers, HVAC, boilers, installations, 24/7 service department, Honeywell, building automation, mechanical engineering, Energy Efficiency, Mitsubishi |
| SIC Code | 7200 |
| DMA Code | Washington Metropolitan Area |
| Founded | 1986 |
| Operating Status | Independent Company |
| Updated: | 2026-09-19 |
Workforce Turnover
Length of Employment
Calvert Controls's workforce includes employees across a wide range of tenure levels.
11% have been with the company for 1 to 2 years33% have been with the company for 3 to 4 years22% have been with the company for 5 to 7 years22% have been with the company for 8 to 10 years11% have been with the company for more than 11 years
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Calvert Controls Corporate Information: FAQ
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