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.

Iron Workers International (The International Association of Bridge, Structural, Ornamental and Reinforcing Iron Workers Union), AFL-CIO, is a proud trade association whose beginnings go back to the 1890s. We currently represent 120,000 members in North America. If there were no ironworkers, cities like New York, Chicago, Quebec and Los Angeles would look very different than they do today - no skyscrapers, no bridges, no office buildings. Transportation would be radically different too. How would the millions of commuters every day get to work without the bridges built by - you guessed it - ironworkers. Without ironworkers to erect the skeleton of a structure, no other trade would be able to install their work. That's why ironworkers are the most respected tradesperson in the construction industry. When you're an ironworker, the sky is the limit. The possibilities of training, earning, providing, advancing, building are endless. There is no limit to what ironworkers can do!

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.

Jamison Electric is a construction company based out of 2920 N 24th Ave, Phoenix, Arizona, 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.

Davis Heating and Air, your South Jersey HVAC service experts. Our Cherry Hill based, family owned and operated company has been providing HVAC systems installation and HVAC service throughout South Jersey since 1999. We service all makes and models

PROCON is an award-winning architectural and construction management firm. What makes us unique is a fully-integrated architecture, engineering, and construction management team under one roof. Together, we make sure that from the office to the jobsite, your experience is optimized from beginning to end. Our partners trust us to deliver exceptional projects on time, every time, and within budget. Over 95% of our work is repeat business from happy clients. For you, that means one company, one contract, one source, and peace of mind. Our robust portfolio features numerous projects in multiple market sectors throughout the Northeast. Our core values are built on innovation, integrity, taking ownership, a positive attitude and a steadfast commitment to our client’s success. We are dedicated to delivering exceptional projects as if they were our own. Our company’s one-stop-shopping approach to design, engineering and construction services means that at PROCON, every solution is just down the hall.

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.

Crb Electric is an electrical/electronic manufacturing company based out of 72 Cortland Ave, Buffalo, New York, United States.