Founded in 1914 and now in its fourth generation of family ownership and management, the Barletta companies'​ headquarters is in Canton, Massachusetts. Its two construction entities perform different categories of work. Barletta Engineering Corporation constructs water and sewage treatment facilities, gas-fired and renewable energy power plants, green roofs and spaces, and commercial buildings. Barletta Heavy Division, Inc. is focused on work such as airports, roads, highways, bridges and tunnels, public transportation projects, railroad and light rail tracks, landscaping, environmental remediation, sitework and utilities. Barletta companies have a professional staff of 90, and are signatory to Labor Agreements with the Unions representing Laborers, Carpenters and Operating Engineers. Barletta companies have a fleet of over 300 pieces of equipment, and are prequalified by the Massachusetts Highway Department, Department of Conservation and Recreation, the Division of Capital Asset Management, and the Massachusetts Bay Transportation Authority. There are few firms in today's construction industry with the level of experience and longevity that the Barletta companies enjoy. By combining strong project management with the latest technological advances and cutting edge construction methods, the Barletta companies have established a reputation for safely completing projects to specification while meeting time and budget constraints.

Complex building systems demand technically advanced solutions. As the holding company for Arden Engineering Constructors, MJ Daly, Unique Metal Works, and Corporate Mechanical of New England, Arden Building Companies provide a robust skill set that covers a wide range of services including: engineering design, mechanical construction and maintenance services, electrical construction, sheet metal fabrication, sprinkler construction and service, and co-generation “green” energy. Our resources run deep and our ability to listen to our customers and create financially and energy efficient solutions keep us the one-stop provider of mechanical building solutions in New England.

The O’Connor Corporation is committed to building long-term relationships with our clients based on performance, integrity, safety, and customer satisfaction. We continue to meet the evolving needs within our industry by employing the most qualified and dedicated project managers, professional millwrights, and boilermakers. Our highly trained team continuously strives to meet or exceed our customers’ expectations. The O'Connor Corporation services the following industries: Power Generation Maintenance and Construction, Water and Wastewater, Moveable Bridges, Material Handling, Pulp & Paper, and Precision Mechanical Alignments.

RJV Construction Corporation is an underground utility contractor located in Canton, MA specializing in water and sewer improvements. The name in bold red print on their equipment, PACELLA, has been associated with pipework in and around Boston since the 1920s. Founded on the family core values of honesty, integrity, hard work and determination; RJV utilizes their experience and resources to deliver a quality product that is on time and within budget on all projects. They take pride in the PACELLA name and their deep history in the utility industry around the greater Boston area.

R. ZOPPO CORP is a 90 year old, family owned, public works contractor established in 1925 with an extensive New England construction history. Specializing in the heavy/civil and underground utility sectors of the Massachusetts construction industry, R. ZOPPO CORP has made numerous notable contributions to New England's infrastructure.

D’Ambra Construction Company is a Rhode Island based company specializing in four major divisions: Highway Construction, Site Development, Utility Construction and Paving.

Lawrence-Lynch Corp. is a family owned contracting company. For 50 years we have built and maintained a great reputation for professionalism in our industry. From all aspects of utility construction to hot mix asphalt manufacturing, our customers appreciate the value they receive from working with a company with such a diverse set of skills and accomplishments.

John Rocchio Corporation based in Smithfield, Rhode Island provides heavy civil contracting services throughout the New England region. The company was founded in 1960 and is now in its third generation of leadership. John Rocchio Corporation is a performance driven, diverse heavy civil contracting company. We provide a full range of civil contracting services that include bridge, culvert, dam, utility and road construction. With our long history of successful projects, our work today can be seen throughout all of Southern New England.

JAMES G GRANT CO INC is a company based out of P O BOX 54, READVILLE, Massachusetts, United States.

"Our Reputation is Built One Line at a Time"​ Since 1973, Safety Marking (SMC) has been the premier provider of pavement markings. For generations, we’ve delivered state of the art equipment and technology with the highest quality suppliers to bring the best combination of expertise, equipment, and service to all our customers. Our goal is to provide the highest level of service and state of the art fleet, when you need it. Our highly skilled professionals complete every project on schedule, on budget, one line at a time! Safety Marking is a full service highway and roadway marking company with expertise in every aspect of pavement marking. Our operating area extends into seven states, including all of New England, southeastern New York.

NSS delivers comprehensive turnkey network development, construction & consulting services to the wireless industry. Driving our "seamless" One Stop Shop experience is our comprehensive suite of core services including: • Project Management • Construction Management • Management & Coordination of A&E firms • Quality control of deliverables • BOM and COP preparation • Management of NSS crews to ensure safety, quality and a timely installation • Post integration Services  • Troubleshooting Post Construction • Wind & Solar Solutions