CP & H, Inc

W.G. Tomko, Incorporated is a full-service mechanical contracting company that offers construction, plumbing and water treatment services. It operates a service department and prefabrication shop. The company provides design/build, boring, and lime and product conveying services. W.G. Tomko, Incorporated has completed projects for McKeesport WWTP, PWSA Chemical Facilities, PWSA Highland Reservoir Filter Facility, SCI Forest County Prison, Pittsburgh International Airport, Squirrel Hill, Thaddeus Stevens College and PNC Park. It offers installation services for heating, ventilation and air conditioning systems. The company undertakes projects, including Clarion University, West Virginia University, Avonworth High School, Harrisburg Parking Garage and Emerald Mines. W.G. Tomko, Incorporated conducts safety and health programs.

Limbach Holdings Inc., based in Pittsburgh, PA, is a leading building systems solutions firm specializing in critical mechanical, electrical, plumbing, and HVAC infrastructure. With a revenue of $518.8 million in 2024, Limbach partners with building owners and facilities managers to provide essential services that ensure the seamless operation of their businesses. Recognized as one of U.S. News Best Companies to Work For, Limbach is committed to maintaining a culture of belonging, diversity, and employee development. By focusing on sustainability and energy efficiency, the company helps clients optimize their energy strategy while reducing operational costs and environmental impact. Generated from the website

Ruthrauff is a design/build mechanical contractor in McKees Rocks, Pa., with an estimated annual sales volume that exceeds $35 million. The company gained its reputation with its attentiveness to customer s needs and the ability to provide solutions that exceed expectations. Since its founding more than 40 years ago, Ruthrauff has focused on a team approach and its single-source advantage. Ruthrauff is noted for its negotiated, fast-track and design/build projects.