George Costan founded Southern Air in 1946. Through the years, Southern Air has grown into a company that not only provides world class residential support, but is also a full service design/build commercial, industrial and institutional contractor with more than 850 employees in Virginia, West Virginia, and North Carolina. Southern Air offers design, installation and service of heating, air conditioning, electrical, plumbing and piping systems for commercial and industrial facilities. Southern Air Residential offers heating and air conditioning installations and repairs, service agreements, 24/7 emergency customer support, indoor air quality control to include carbon monoxide testing, electrical services and generator installation.

Moore's specializes in mechanical, electrical, plumbing, & BAS solutions including new construction, building and system upgrades, major renovations, and both scheduled and emergency services. Since 1985, Moore’s Electrical & Mechanical has been successfully partnering with customers as we have expanded throughout Virginia and North Carolina. Moore’s is an employee-owned company, and therefore our partners are our primary goal. We take personal investment to build great things while serving our customers and those we work alongside. This sense of ownership and family atmosphere provides a tremendous impact on the high quality of work we deliver to our customers and the proactive safety culture at Moore’s. We strive to provide the best service our customers have ever received by creating custom, cost effective solutions that fit their needs. By utilizing our team of highly skilled tradesmen, BIM and Trimble technologies, state of the art prefabrication facilities, and design build expertise, we ensure successful completion of our customers’ projects. Through detailed communication and collaboration, we ensure our work is done right the first time because our projects impact the future of our communities. Moore’s Electrical & Mechanical is your best partner for successful MEP and HVAC-R projects.

Wooldridge is commitment to customer satisfaction and affordable service! We offer you free consultations and estimates before you commit to us. We are

ELLIOTT ELECTRIC SERVICE INC is a company based out of PO BOX 233, SOUTH BOSTON, Virginia, United States.

MID ATLANTIC STEEL ERECTORS INC is a construction company based out of 832 WESTWOOD PINE COURT, MOSELEY, Virginia, United States.

Continental Fire Sprinkler Company is a turnkey fire protection contractor headquartered in Omaha, Neb. With talented people and extensive resources, Continental has completed a wide range of projects within 46 different states throughout the nation since 1971. Continental can successfully handle all aspects of fire protection–from consultation to design, installation, maintenance, testing and inspections. Our experienced personnel, use of innovative technology and genuine dedication to customer service has established us as a trusted source for fire protection services. While our original staff of 20 has grown to more than 300, we continue to maintain small company values and commitment to meeting our clients' needs.

Bohling Steel Inc is a structural steel fabricator based out of United States.

ITS MAINTENANCE LLC is a company based out of 1913 HASKIN ROAD, GOOCHLAND, Virginia, United States.

Atlantic Construction Sales, "ACS"​, is an independent, privately held firm that represents a variety of commercial roofing vendors, including Elevate, GenFlex, USG, Alleguard, and Aspire. We are proven partners for distributors, contractors, architects, specifiers, and building owners and managers, implementing customer-first solutions.

Privately owned Plumbing contracting firm in business since 1982 and has successfully completed every project ever contracted. We are Union plumbing shop and signatory to Local 1 and Local 21. We are licensed throughout the New York metropolitan area. Including, NYC, Westchester County, Putnam County, Rockland County and Connecticut. We are fully bonded and insured and can handle any type of job up to 10 million. We have roughly 75 years combined experience between the owners. Our drafting dept. is the best in the business and operates with all of the latest software.

Commercial Lighting and Retrofits based out of Lakeland, FL servicing the entire state of Florida.

Mid Atlantic Test & Balance is a mechanical or industrial engineering company based out of 1120 Wilborn Ave, South Boston, VA, United States.