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Founded by Harvey L. Henkel and Robert “Red” Deluse, Hamilton is a Milford, Ohio manufacturer whose work blends modern technology with old-world craftsmanship. Since joining the Gunnebo Group in 2012, the company has continued building custom physical-security equipment for customers across the United States and international markets, supported by a nationwide network of 75 authorized Channel Partners.
Established in 1907, Hamilton Carts & Trailers is the cart-and-trailer arm of Hamilton Caster & Mfg. Co., manufacturing in the USA from its Hamilton, Ohio operation. It is known for custom-engineered material-handling equipment built for demanding industrial settings, including unusually large loads and specialized aerospace work.
Founded in 1966 after inventing a sorter component for mailrooms, Hamilton Casework Solutions manufactures modular casework and storage for workplace, healthcare, and educational spaces. The company says it completes most construction at its U.S. Midwest factory and has expanded its casework line across office, medical, and educational environments.
Founded in Hamilton, Ohio, in 1907, Hamilton Caster & Mfg. Co. is a fourth-generation family-owned manufacturer of industrial casters and wheels, including custom mobility systems for demanding loads. Its American-made products serve everything from heavy fabrication to aerospace ground support, while its in-house engineering and manufacturing operation tackles unusual assignments such as the 100,000-pound Colossus caster.
Founded in 1961, Hamilton Industrial Knife & Machine manufactures industrial machine knives and parts in Hamilton, Ohio, pairing new and custom blades with sharpening and related services. Its team draws on more than 55 years of experience to help customers define practical cutting solutions, including precision machining from customer drawings and sharpening on the same machines used to make its shear blades. The company serves customers across the United States and internationally.
Since 1921, Hamilton Manufacturing Corp. has made unattended payment and entry equipment, evolving from coin-operated scales into kiosks, change machines, and cloud software for businesses that operate without staffed points of sale. The Holland, Ohio, manufacturer developed what it describes as the first pay station for car washes in 1982 and now serves car wash and parking operators alongside laundry and amusement businesses.
From its Ohio facilities, Hamilton Products Group manufactures GSA-approved security containers and related systems for the Federal Government and its contractors. Its products have been purchased through GSA Federal Supply Service contracts for nearly two decades and are made in the United States, including specialized containers for classified information, weapons and sensitive equipment. Hamilton operates under ISO 9001:2015 quality, ISO 14001:2015 environmental and ISO 45001:2018 occupational health and safety management systems, and is part of Sweden-based Gunnebo Group.
Hamilton Tanks, LLC traces its tank-making roots to a 1916 welding and manufacturing company in Hamilton, Ohio and now custom-designs and fabricates steel storage tanks and tank systems in Columbus. The company built its first storage tank in 1946 and continues to make carbon and stainless steel tanks ranging from 150 to 50,000 gallons, including specialized systems for asphalt and other industrial liquid storage. Hamilton Tanks has also been a licensed Steel Tank Institute member for more than 50 years.
Founded in Horsens, Denmark, in 1989, Hamlet Protein develops and manufactures soy-based specialty ingredients for young animal nutrition. Its patented bio-conversion process produces ingredients intended to improve digestibility and reduce soy anti-nutritional factors, and production operates in Denmark and the United States. The company supplies customers worldwide and became part of Royal Agrifirm Group in 2026.
From its 110,000-square-foot Akron facility, Hamlin Newco, LLC stamps metal parts and builds welded assemblies, with a focus on automotive production. The MBE-certified company operates 26 presses ranging from 32 to 880 tons, allowing it to handle everything from small formed components to parts spanning 45 inches. Its value-added work includes robotic welding and finished assemblies alongside stamping.
In Akron, Hamlin Newco, LLC turns steel into stamped metal parts and welded assemblies for industrial and automotive customers. Its 110,000-square-foot facility houses 26 stamping presses ranging from 32 to 880 tons, allowing it to handle parts from small components up to panels measuring 45 inches. Hamlin is also identified as an MBE Minority Business Enterprise and adds value through robotic welding and assembly work.
For more than 70 years, Hammelmann GmbH has been known for high-pressure engineering in Oelde, Germany, serving demanding industrial applications around the world. The company makes high-pressure pumps and technical systems, backed by a global service network and in-house maintenance support.
Founded by brothers Gene and Luther Hamrick in 1975, Hamrick Packaging Systems has grown from a small Suffield, Ohio, rebuilding shop into a family business with a 65,000-square-foot operation in Kent. The company is known for durable top-load case packers, with more than 3,000 machines installed worldwide and some still running after 40 years. Its in-house team also keeps that installed base supported with a substantial stock of replacement parts and repair service.
Founded in 1999, Solon-based Hana Technologies makes RFID products and provides microelectronics manufacturing services as part of the HANA Microelectronics Group. Its roots reach back to 1978, and the group now operates across seven global manufacturing locations with more than 1.1 million square feet of high-tech production space. Hana’s operations are ISO 9001 certified, while its RFID products hold ARC Quality Certification.
Hancock Structural Steel is a family-owned steel fabrication company based in Findlay, Ohio, producing structural, architectural, miscellaneous, and custom steelwork. It partners with general contractors and construction managers on projects including universities, hospitals, industrial warehouses, and commercial buildings, and says it has maintained AISC Certified Fabricator status for over a decade.
For more than 30 years, Handling Concepts, Inc. has been an Akron-based problem-solving partner for industrial workplaces. Founded in 1994, the company develops custom material-handling solutions for manufacturers and other facilities, with a particular focus on safer, more ergonomic work. Its team manages projects from design through installation, primarily serving Ohio and neighboring states while traveling nationally for larger installations.
Since 1997, Handy Grafix has operated in Tiffin as a small graphics shop producing custom signs, decals, banners and vehicle wraps for both personal and business customers. Its 2,000-square-foot workspace handles projects from a single sticker to a full semi wrap, with in-house graphic artists who create or modify artwork and equipment for high-resolution printing, lamination and precision cutting. The shop also accepts orders with no minimum quantity, making it a local option for one-off graphics as well as larger jobs.
For more than 11 years, Hangzhou Bing Jia Tech. Co., Ltd. has built its reputation around protective-packaging innovation, operating with a 142-person team that includes 37 research-and-development staff. The Hangzhou manufacturer serves customers in more than 52 countries and is known through its LockedAir™ and LockedPaper™ brands for developing packaging systems used by businesses ranging from small shippers to high-volume fulfillment centers.
Trusted since 1986, Hanline Fresh grew out of the Shelby, Ohio, produce business founded by Bob Hanline and is now part of the Hanline Group. The company builds year-round sourcing relationships to keep fresh produce moving reliably to foodservice and other supply-chain customers, with a food-bank program focused on reducing farm-level waste and improving access to quality produce.
Hanlon Composites, LLC is identified in the submitted source context as a manufacturer of customized fiber reinforced products. Its capabilities include compression, hand layup, and spray-up processing, and it serves defense, transportation, utilities, and industrial markets.