Born from a Maryland sheet-metal family, Kogok Corporation has grown from Henry George Kogok Jr.’s 1972 shop into a 100% employee-owned company serving the Washington-Baltimore region. Founded by his son Jeff in 1995, Kogok now has more than 400 employee-owners and is known for taking on technically demanding work in active hospitals, research facilities, and other high-stakes buildings. Its teams fabricate and install HVAC systems for complex commercial projects across DC, Maryland, and Virginia.
Sessa Sheet Metal Contractors, IncFounded in Baltimore in 1980 by Tom Sessa, Sessa Sheet Metal Contractors is an employee-owned full-service contractor that fabricates and installs sheet metal systems for HVAC projects. Its 32,000-square-foot facility combines a six-station coil line with custom fabrication capabilities, supporting work from drafting and estimating through installation. The company’s ESOP gives employees a direct ownership stake in the business Tom built over more than four decades.BALTIMORE, MD
Fresh Air ConceptsFamily-owned and operated since 2003, Fresh Air Concepts provides residential and commercial HVAC, electrical, and mechanical services from its Linthicum, Maryland base across the Baltimore–Washington region. The company combines HVAC expertise with in-house automated sheet-metal fabrication and is a Mitsubishi Diamond Commercial Contractor, supporting customized systems from home installations to complex commercial facilities. Fresh Air Concepts is also a nine-time Carrier President’s Award winner.LINTHICUM HEIGHTS, MD
Silverado Air Systems, LLCLocally owned and family-operated since 1997, Silverado Air Systems designs, fabricates, installs and services commercial HVAC systems for businesses across the Baltimore–Washington region. Its Hampstead-based fabrication shop produces custom ductwork and equipment tie-ins, while its technicians handle projects ranging from new construction to emergency repairs and replacements. The company also recycles as much demolition material as possible from its projects.HAMPSTEAD, MD
Kelly HVAC, IncSince 1994, Kelly HVAC has been owned and led by Chris Kelly, whose more than 30 years of mechanical experience shape this Upper Marlboro contractor’s work for commercial and local government customers. The company is known for handling specialized HVAC applications such as clean rooms, computer-room systems and ice rinks across Maryland, Virginia and Washington, D.C.UPPER MARLBORO, MD