Contractors in Connecticut

A dynamic Connecticut licensed engineering and land surveying firm providing a full range of engineering services, specializing in civil, highway, traffic, structural, and utility design as well as architecture and inspection services.

M&T Sports installs, services and repairs indoor and outdoor athletic equipment. They provide high-quality solutions and ensure every installation is completed professionally.

McCarthy Concrete is a trusted partner for top-tier concrete solutions, focusing on concrete construction with a commitment to quality, efficiency, and innovation.

Macri Associates, Inc. is a mechanical services company established in 1981. They deliver commercial mechanical services. Their capabilities encompass all areas of the mechanical industry including design build, construction management, Heating, Ventilation, Air Conditioning, and Plumbing systems, commercial, industrial, and process piping systems, and on-call mechanical and plumbing service support.

Mastrobattisto, Inc. is a site development and concrete company based in Bristol, CT. They offer complete site development, utility work, paving, bridge and road construction, and site and structural concrete for residential and commercial projects.

Founded in 1927, The Mather Corporation, based in Bloomfield, CT, is a fourth-generation construction company specializing in heavy civil, site work, industrial, and public projects. With a legacy of excellence spanning four generations, we deliver superior results on time and within budget, exceeding expectations every step of the way. Our commitment to quality craftsmanship, client satisfaction, and community engagement sets us apart as the construction partner of choice. Let's connect and bring your vision to life with The Mather Corporation.

Mazzotta Rentals, Inc. is the premier provider of construction equipment rentals and related services in the Northeastern United States. They offer a full line of aerial work platforms, telehandlers/forklifts, industrial fork trucks, stock pickers, air compressors, generators and light towers, utility vehicles, accessories and attachments.

MidOcean Wind, a subsidiary of MidOcean Marine, focuses on developing marine assets and service solutions for wind farm developers in the U.S. It leverages U.S. shipbuilding and operational experience and emphasizes environmentally conscious approaches with operational excellence and extensive U.S. experience.

Midsun Group is a solutions provider to the electric utility industry, offering products and services to increase reliability in transmission, substation and distribution operations through the utilization of premium silicone covers and coatings.

Milestone is a full-service construction management/general contracting company established in 2010 to bring an owner’s perspective to the business of building.

Mizzy Construction offers a complete sitework development package: From cutting down trees to moving dirt, installing utilities, traffic signs, and sweeping parking lots.

Established in 1967, Mohawk Northeast, Inc. has been a cornerstone in the construction industry, delivering unparalleled services across the Northeast and North Atlantic regions. They are leaders in heavy highways, movable and fixed bridges, and marine construction.

Mulvaney Mechanical is a full-range mechanical contracting firm, engaged in the installation of plumbing, process piping, heating, ventilation, air conditioning, and fire protection systems. They specialize in high technology mechanical construction work, serving medical facilities, pharmaceutical laboratories, product development labs and pharmaceutical production plants. They have experience in high purity clean rooms, to Class 10 environments and in constant temperature environments.

The Naugatuck Railroad focuses on providing freight shipping solutions along a rail line in Western Connecticut, emphasizing customer service and offering various rail freight solutions. They also engage in real estate and industrial development, alongside operating scenic train rides for the Railroad Museum of New England.

New England Subsurface Imaging provides underground utility locating, concrete imaging & scanning, video pipe inspection, and GPS mapping services.

Newfield Construction, based in Hartford, CT, is a privately owned business established in 1969. They specialize in complex projects and enjoy tackling challenging work.

Numa is the world’s leading manufacturer of rock drilling products, dedicated to ongoing product innovation and results-oriented consistency. Numa has built a strong legacy of high quality, made in the USA rock drilling hammers and bits.

A full-service construction firm dedicated to providing superior building services, focusing on quality, value, energy efficiency and the protection of natural resources.

OLSEN is passionate about building and committed to delivering exceptional quality and performance. With over $900+ million in completed projects, they transform visions into reality with innovation, precision, and a forward-thinking approach. Their expertise spans Construction Management, General Contracting, and Design-Build, serving industries from critical infrastructure to commercial, healthcare, and higher education.

PAC Group LLC is a construction management and general contracting company with a focus on building long-term customer relationships.

Full-service construction company specializing in Design Build, Construction Management, and General Contracting for the commercial, industrial and institutional markets.

Penney's Construction Company is a construction company specializing in excavation, bituminous paving, curbing, city sidewalks, masonry, foundations, water and sewer service, underground utilities, and laterals. They have over 40 years of experience serving federal, state, municipal, and commercial sectors.