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Founded in 1985 by former Westinghouse project manager Raymond “Pete” Dupill, Dupill Group is a service-disabled veteran-owned company now led by Marines Chad and Cornell Dupill. For more than 35 years, it has built its reputation solving demanding valve problems for nuclear facilities, government agencies, and industrial customers, with work governed by ASME NQA-1 and ISO 9001:2015-compliant quality systems.
Dupli is a Matt family-owned company founded in 1965, with its modern history beginning when Kemper Matt Sr. bought the four-person operation in 1980. Now based in a 150,000-square-foot former 1904 building in Syracuse, the company is best known for envelope manufacturing and has expanded into a broader production partner for organizations and trade customers. Its on-demand model is designed to reduce overproduction while supporting recurring print programs.
Dupon USA designs and manufactures ice cream filling machinery, hardening equipment, baked products, and packaging for producers ranging from small batches to industrial lines. The Columbus-based operation is part of the family-owned D’Hoore Group, whose ice cream-cone roots reach back to Italy in the early 19th century, and now operates three U.S. production plants spanning more than 600,000 square feet. Its equipment scales from 1,800 to more than 45,000 products per hour, while its North American bakeries produce more than 2.5 billion cones and sandwiches annually across the broader network.
DuPont is a global innovation company that develops technology-based materials and solutions to transform industries and everyday life. Its stated focus includes healthcare, water, and advanced industrial markets, supported by a global network of manufacturing sites, offices, laboratories, and technical centers. The company says its work is grounded in science and innovation and includes membrane and ion-exchange technologies for water treatment.
Founded by J.M. Norris in 1960, Dura-Bond Industries grew from a Western Pennsylvania corrosion-protection business into a family-built manufacturer with operations in Export, Duquesne, Steelton and McKeesport. It manufactures steel line pipe and fabricates structural steel, while its Pennsylvania plants also apply protective coatings to pipe and steel products. Its history includes the acquisition of the former Bethlehem Steel pipe plant in Steelton and the launch of ERW pipe production in McKeesport.
Dura-Metal manufactures precision-machined components and tooling designed to resist wear and corrosion. Its history spans more than 50 years, and it operates a 48,000-square-foot manufacturing facility in Irwin, Pennsylvania, where it serves customers across a range of industrial markets. Since June 2023, it has been part of Hyperion Materials & Technologies through the Precision Solutions by Hyperion brand.
DURABIRD grew from founder Syam’s work as a badminton coach and Philadelphia sports-facility operator into a company creating software for sports clubs and teams with specialized workflows. Its flagship ClubHopper is shaped by that firsthand experience, helping clubs manage their operations while offering a foundation for custom software projects.
Founded by Karen Zatta-Martin, Durable Documents produces USA-made printed books, forms, tags and labels built for harsh work environments where ordinary paper fails. Its waterproof, chemical-resistant and tear-resistant materials serve construction and mining sites as well as safety and compliance programs, and can be customized around a company’s regulations or jobsite needs. The Canonsburg company also makes its documents washable, recyclable and suitable for demanding applications such as underwater work.
Since Thomas R. Heyward Jr. founded it in the 1920s, Duraloy Technologies has built its identity around alloy development and more than a century of experience in high-temperature metalwork. Based near Pittsburgh in Scottdale, Pennsylvania, the company makes specialty castings and finished assemblies for industries whose furnaces and equipment operate under demanding conditions.
Since 1934, Durand-Wayland has built produce-handling equipment and agricultural sprayers from its LaGrange, Georgia headquarters. With more than eight decades of fruit and vegetable equipment experience and an 85,000-square-foot facility, the company serves thousands of growers through packinghouse systems, grading platforms and field equipment. Its American-made EvoSort grader reflects the company’s long-running focus on evolving packhouse technology while supporting growers through field offices in California, Florida and Virginia.
Born from a hockey-pad maker’s search for a better plastic peg in the 1960s, Durapeg LLC produces tent stakes from heavy-duty polycarbonate in Pennsylvania. The family-run company carries forward the vision of engineer and outdoorsman Jeffrey D. Werner, who grew the brand after taking ownership in 1982; his son Kevin and daughter-in-law Erin now continue that legacy and moved production from Canada to Somerset, Pennsylvania. Durapeg is known for stakes that combine light weight and impact strength without the sharp edges or rust associated with conventional designs.
Durapods makes factory-built modular bathrooms for large-scale commercial construction, with each pod finished to architectural specifications before delivery to the jobsite. Powered by PDM Constructors, it combines offsite fabrication with design coordination and turnkey installation for projects including healthcare, hospitality, and residential buildings.
Durawood Products is an employee-owned manufacturer of precision-built stair systems, serving builders, contractors, and distributors across the Mid-Atlantic since 1986. The company operates a 40,000 sq. ft. manufacturing facility and offers a range of stair solutions from classic box stairs to custom architectural designs. Known for craftsmanship and reliability, Durawood also provides distribution partnerships and field support services.
Founded in 1996, Reading-based Duryea Technologies designs and manufactures brushless DC motors, power electronics, generators and rotary engines in the United States. Its niche is engineered-to-order systems for OEMs, built around proprietary low-voltage SolidSlot motor technology and flexible production that runs from prototypes to low- and mid-volume manufacturing. Duryea also develops practical energy systems such as the MODE biogas generator for farms and wastewater-treatment plants.
Dutch Barn Builders, LLC manufactures and builds custom storage buildings and other wood structures, including pole barns, from its base in Lore City, Ohio. Founded in 1975, it describes itself as Ohio’s first storage barn manufacturer and has expanded from Hartville to a network of locations across Ohio, West Virginia and Pennsylvania. The company builds some structures on-site and offers customization for customers’ property and intended use.
What began with Ralph and Luella Gamber bottling honey from three beehives in their Lancaster County kitchen in 1946 has grown into a family business specializing in honey packaging and industrial honey supply. Dutch Gold is best known as the home of the original squeezable honey bear, conceived at the Gambers’ dinner table in 1957, and now also supplies custom-blended and private-label honey from its Lancaster operation. Its honey is True Source Certified, with USDA Organic, SQF, and Non-GMO Project certifications supporting its sourcing and food-safety practices.
Dutch Valley Food Development is a dry-blend manufacturer that develops custom food blends and packages them for food companies. Its Myerstown, Pennsylvania facility produces blends to customer taste, performance, cost, and packaging specifications, with research and development support for formulation and scale-up.
Since 1962, Dutchland Farms has connected Pennsylvania poultry farms with the egg market while raising pullets and providing flock services across the Mid-Atlantic. A member of The Wenger Group, the Lancaster County operation markets eggs from more than 2 million birds and grows 6 million pullets annually through a network of more than 30 independent family farms in Central Pennsylvania. Its warehouse can hold 4.725 million eggs, supporting deliveries to grading and processing plants seven days a week.
Founded in Oostburg in 1967 by Bill and Nancy Claerbout, Dutchland Plastics makes large custom plastic products through high-volume rotational molding. The company handles projects from engineering through assembly and shipping, with the capacity to produce parts up to 500 pounds and 17 feet long. Its nearly 200,000-square-foot Wisconsin operation is complemented by a facility in Canastota, New York.
After founder Thom “Dutch” Ressler thru-hiked the Appalachian Trail with a hammock in 2003, he began making the minimalist camping gear he could not find elsewhere. Today, DutchWare makes American-made hammocks and suspension hardware, including its Chameleon Hammock and invented Dutch Clip, while supplying DIY builders with outdoor fabrics and components. The Lancaster company also provides contract sewing, laser cutting and custom printing for other gear businesses, with a focus on recycled and repurposed materials where possible.