Dooley Heating & Air Conditioning

Established in 1901, Limbach Facility Services LLC is a provider of mechanical and sheet metal contracting services from the inception of a project to the completion and maintenance of the facility. Located in Pittsburgh, Penn., the company specializes in plumbing, sheet metal fabrication and installation, stainless steel specialty piping, design build, energy retrofit, management systems, and heating, ventilating and air-conditioning (HVAC) piping. In 2009, it received National Safety Council Occupational Excellence Award. It also provides design assist, constructability evaluation, guaranteed maximum pricing, equipment and material selection, and controls and system performance parameters. Limbach Facility Services LLC has completed various projects, including Orange County Convention Center, Detroit Lion s Practice Facility, and Florida Hospital and Coleman Prison. Some of its major clients are Sony, General Motors, Lockheed-Martin, DuPont and Hewlett-Packard.

The Kirk Williams Company was founded in 1949 by James 'Kirk' Williams, Sr., and continues to operate as a privately held firm. The company offers mechanical fabrication and installation services. Kirk Williams offers clients planning and scheduling services from sales to engineering, design, fabrication, installation and start-up. The company s customers include small to large manufacturers, power plants, automotive paint shop and equipment suppliers. Kirk Williams clients include the Ohio State University, the U.S. Postal Services, Suzuki and city school systems. The company is headquartered in Grove City, Ohio, and operates from its more than four acre campus in Grove City. The company employs more than 50 people.