Top Hartford, CT Industrial Companies (59)

Mazzotta Rentals, Inc. is a leading provider of industrial and construction equipment rentals in the Northeastern United States. Founded in 1963 as a construction company, it provides a wide range of equipment rentals, sales, and service to commercial, industrial, retail, residential, and municipal customers throughout the region.

Pratt Industries is America's fifth largest corrugated packaging company and the world's largest, privately-held producer of 100% recycled paper.

Mill Rock Packaging is a U.S.-based packaging company specializing in the design, engineering, and production of high-end, sustainable graphic paperboard and folding cartons for various industries.

Loureiro Engineering Associates, Inc. is a 100% employee-owned, multidisciplinary engineering and environmental services firm. Their mission is to enhance the built environment and the lives of those within it through an integrated suite of services, including engineering, construction, EH&S, energy, landscape architecture, waste management, and laboratory services. They provide comprehensive, vertically integrated solutions primarily for the industrial, manufacturing, and government...

Wind River Environmental, LLC is a leading provider of septic, waste, and wastewater management services, specializing in liquid waste systems such as grease traps and septic tanks for residential, business, and municipal customers.

Benesch, formally Alfred Benesch & Company, is a multidisciplinary professional services firm providing planning, engineering, and design for infrastructure and community projects across the United States. Its work spans transportation—including roads, bridges, railroads, aviation, and transit—along with community development, environmental and water resources. The firm supports clients from needs assessment and concept development through design, regulatory compliance, and construction management.

Following its 2026 divestiture of distribution, Myers Industries focuses on its core plastics manufacturing businesses. It makes sustainable plastic and metal products for consumer, vehicle, food and beverage, industrial, and infrastructure markets. Its material-handling portfolio includes reusable containers, pallets, bins, bulk shipping containers, storage products, custom molded parts, and composite ground-protection matting. These durable products can be reused and, at...

Select Machining Technologies manufactures heavy-duty CNC turning solutions for machining large, heavy, and demanding workpieces across multiple industries. Its portfolio includes vertical and horizontal turning platforms designed for aggressive cutting, high metal-removal rates, and reliable operation. Products include ram-type vertical turning lathes, flat-bed horizontal lathes, and configurations with C-axis and live tooling for contour milling and secondary machining in demanding...

Airgas, an Air Liquide company, is a leading U.S. supplier of industrial, medical and specialty gases, hardgoods, safety products, ammonia products and process chemicals. It also supplies welding equipment and related products, serving more than one million customers across sectors including manufacturing, construction, healthcare, food and beverage, energy and government. Its nationwide network and product expertise support customers’ operations, safety...

TLD has been specializing for over 70 years in the design, manufacturing, sales, and after-sales services of aircraft Ground Support Equipment (GSE). Part of the ALVEST Group, TLD is committed to helping Aviation become Leaner and Greener. As the global GSE leader, TLD boasts a global workforce of 2,200 employees including 230 R&D engineers, thriving on a foundation of strong values...

Ultra Maritime is a defense technology company that provides application-engineered, bespoke solutions for naval and other mission-critical systems. Its capabilities include sonar, radar, and intelligent systems supporting global military programs. The company focuses on protecting what matters and powering naval technology, serving defense, security, critical detection, and control markets with hardware and integrated technologies designed for long-term military programs around...

ATI Inc. specializes in advanced materials, including Ni/Co-base superalloys and specialty steels, serving industries such as Aerospace and Defense. The company also offers services in environmental remediation, research, facility management, construction, and building design.

Morris Group, Inc. is a third-generation, family-owned North American machine-tool distribution network serving manufacturers of precision-machined parts. Its companies supply CNC machine tools, tooling, accessories, software, and automation, along with applications engineering, maintenance, service, parts support, financing, and other lifecycle assistance. The group’s mission is to help manufacturers improve productivity and maintain a competitive advantage in the global economy.

Novo Precision LLC, located in Bristol, Connecticut, was founded in 1980 as TAK Enterprises, a producer of wire forming products, and was purchased in 2014 by Bill Hazard and renamed Novo Precision. The company designs, builds, and engineers solutions for the wire, cable, and tube industry, offering wire processing machinery, precision wire straighteners, wire cutting and straightening services, precision wire...

OMG, Inc. is a leading global manufacturer of fastening products and technologies serving the commercial roofing and construction industries. The company is dedicated to delivering innovative fastening solutions and maintaining a positive workplace culture where employees are valued for their long-term commitment, often spanning over 20 years, supported by comprehensive benefits and competitive compensation packages.

Ensign-Bickford Aerospace & Defense Company (EBAD), headquartered in Simsbury, Connecticut (CT), is a global leader of mission critical hardware and systems solutions including precision energetics systems and innovative explosive solutions. Our capabilities include customized man-portable breaching systems; fully integrated payload system, subsystem or energetic component production; shock tube based, signal transmission technology integrated with our highly reliable family of detonators;...

Palmer-Donavin Manufacturing Company is a privately-held construction material distribution company that engages in the wholesale distribution of residential building supplies and door fabrication. They are a leader in building material distribution, emphasizing exceptional customer service and employee ownership.

Imperial Dade is an independently owned North American distributor of foodservice packaging, janitorial supplies, commercial cleaning products, and industrial packaging. It provides customized supply-chain solutions to business customers across restaurants, grocery stores, healthcare, sports and entertainment, and cruise lines. Founded in 1935 and headquartered in New Jersey, the company serves more than 120,000 customers through over 130 branches across North...

Novolex is a leading manufacturer of food, beverage, and specialty packaging serving foodservice, restaurant delivery and carryout, food processing, grocery and retail, and industrial customers. Its innovative product portfolio helps businesses operate efficiently, meet evolving customer expectations, and deliver everyday essentials to millions of customers worldwide. The company’s manufacturing network spans North America and Europe and includes two plastic-film recycling...

Equipment Depot Inc. is America's largest independently operated material handling and equipment rental dealer group. Serving local communities since 1939, the company provides a comprehensive range of solutions, including new and used forklifts, aerial lifts, expert maintenance, repairs, parts, and financing. With over 50 locations across the U.S., it serves diverse sectors from port operations to agriculture, all backed by...