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From one-off prototypes to large production runs, Orrville’s H.E.A.T. (Heat Exchange Applied Technology, Inc.) custom-manufactures fin tube and complete heat exchanger equipment for industrial and institutional customers worldwide. With more than 30 years of design and manufacturing experience, the company is also known for VOSS replacement heat exchangers and for restoring aging units through repair and retubing. Its in-house fabrication is performed in an ASME-certified shop with “S,” “U,” and “R” stamps.
Since 1950, Heat Seal has manufactured packaging equipment in Cleveland, Ohio, with a particular foothold in manual and automated shrink and skin packaging machines. The company expanded its reach through the acquisition of Ampak and a 2021 partnership with Italy’s Minipack-Torre, while continuing to make its own equipment in the USA. Its long-running 625A manual wrapper remains a Cleveland-made staple, and Heat Seal supports customers through a distributor network and dedicated service team.
Heat Trace Products, LLC. manufactures self-regulating heat trace cables and complete systems for freeze protection and process temperature maintenance in Leominster, Massachusetts. Its technology traces back to the Samuel Moore Group and the Dekoron brand in the early 1970s, while the company’s long-running 2700 Series has remained a mainstay in low-temperature applications for more than 40 years. The privately held manufacturer also adapts its industrial cable technology for commercial and residential uses, including roof and gutter de-icing, and operates as an ISO 9001:2008-certified company.
Family-owned in Lima since 1993, Heat Treating Technologies provides industrial heat treating backed by in-house metallurgical testing. Its lab performs microhardness, spectrometry, and case-depth analysis, while ISO 9001:2015 certification supports the company’s quality-focused service.
Founded in 1955 as LB Manufacturing by the Bluestones, Heating & Cooling Products makes and distributes sheet metal products for HVAC professionals. The company moved its manufacturing facility to Mount Vernon, Ohio, in 1977 and later opened a Byesville facility in 1984; it describes itself as family-owned and says it serves residential, multifamily, and light commercial HVAC markets across more than 25 states and Canada.
Heatmax Heaters manufactures industrial immersion heaters for metal finishing, process heat, and OEM applications from its facility in Mentor, Ohio. Founded in 1952 as Glo-Quartz by former Navy engineer George Strokes, the company began with quartz immersion heaters and later expanded into customized metal and PTFE heating solutions for corrosive chemical processes. Heatmax continues that seven-decade history with built-to-order designs and short lead times.
From its Cleveland base, HeatStar makes heaters for construction sites, industrial spaces, HVAC applications and outdoor dining. Its product line centers on job-site heat, including portable radiant and forced-air equipment, while its Architect Collection brings overhead radiant heating into restaurant and patio settings. HeatStar says its industrial HVAC products, including radiant tube heaters, are assembled in Cleveland, Ohio.
Heavenly Creamery is Conneaut’s only premium small-batch custard shop, making its hard-serve custard in an on-site production facility. The shop develops about 130 hard-serve flavors each year and serves them seasonally from April through September.
Edith Heck founded this family business in her Oregon, Ohio garage in 1943, and Michelle and Matt Heck now carry the tradition forward in Toledo. Hecks is known for hands-on service, including rush work and a fleet of little red vans serving customers across Northwest Ohio and Southeast Michigan.
Since Terrell Hatfield launched HECO in Kalamazoo in 1959, the company has repaired, supplied, and managed electric motors and other rotating equipment for industrial plants. Its distinctive approach starts by asking why a failure happened, then combines shop repair with field service and predictive maintenance to address the root problem rather than simply replace a component. HECO’s Kalamazoo headquarters can handle rotating components and motor testing at unusually large industrial scales, while its regional service centers extend that expertise across the Midwest and Ohio Valley.
With roots in Ashland’s 1913 Eagle Rubber Company, Hedstrom Plastics makes custom plastic parts through rotational and injection molding for customers across the United States. The company combines in-house engineering, mold-shop fabrication and large-scale production, with more than 300,000 square feet of manufacturing space and over a century of plastics experience. Its Ashland operations are ISO 9001:2015 certified and maintain 24-hour product inspections.
For 75 years, Heeter has grown from a commercial printing shop into a regional print and marketing partner serving organizations with complex communications needs. Its 175,000-square-foot operation spans five locations and includes more than 100 employees, while its work for regulated sectors is backed by recognized security and sustainability credentials. Heeter is especially distinctive for having been the first printer in the world to install Ricoh’s Pro VC70000 inkjet web press.
With a 75-year history, Heeter has grown from a commercial print shop into a regional marketing production partner serving organizations that need secure, data-driven communications. Its 175,000 square feet of production space across five locations includes a Pennsylvania digital print center with two Ricoh Pro VC70000 presses, reflecting the company’s long-running investment in print technology. Heeter’s work also carries recognized credentials for privacy, security and environmental responsibility.
HEF North America brings together a network of surface-engineering companies that coat and treat industrial and automotive components, while also making engineered bushings and related performance products. Its North American operation spans 18 locations across the U.S., Mexico, and Canada, with millions of components coated annually for more than 500 multinational clients. The business draws on the HEF Group’s seven decades of tribology expertise and includes a Benton Harbor, Michigan, electroless-nickel facility equipped for parts up to 9 feet long and 4,000 pounds.
Founded in 2010, Hefei CAC Electronic Technology Co., Ltd. develops and manufactures RF coaxial connectors, cable assemblies, adapters and related components for high-frequency signal systems. Based in Hefei, the company’s design and precision-machining capabilities cover applications from DC to 110 GHz, with rapid prototyping and OEM/ODM production also available. CAC has held ISO 9001 certification since 2014 and reports 15 years of experience in connectors and cable assemblies.
Since its 1957 beginnings as Heinicke Instruments, HEICO Corporation has built a technology-driven company around specialized aerospace and electronics businesses. Its decentralized, partnership-oriented approach has supported more than 110 acquisitions since 1996, often keeping founder-led companies operating under their own identities. Today, HEICO makes mission-critical components for aircraft and other demanding systems, serving major airlines, original equipment manufacturers and the U.S. military.
Founded in Toledo, Ohio, in 1954, Heidtman Steel is a family-business-rooted steel processor and supplier that has expanded from one location into a network of processing facilities and joint ventures. The company produces steel tubing and processes steel for customers across North America, drawing on decades of service-center experience and a history of specialized capabilities including slitting and pickling.
Founded in 1888 by German immigrant Gustav Heineman, Heineman’s Winery makes island wines on Put-in-Bay and remains Ohio’s oldest family-owned and operated winery. The Heineman family continues the tradition today, working with local growers who cultivate 20 acres of South Bass grapes for vine-to-wine control. Its winery is also home to Crystal Cave, the world’s largest geode, which helped the family business survive Prohibition.
Founded in Beaver Falls before 1905 and established in Canton since 1917, Heinemann Saw makes circular saw blades for demanding steel, non-ferrous-metal and specialty cutting applications. Its history includes patented blade designs such as the Gold Dot and N-Grind, while today the company also reconditions blades and provides application-specific technical support. Heinemann Saw became part of Germany’s Gebrüder Lennartz in 2015.
Heinen’s is a family-owned grocery business founded in 1929, when Joe Heinen opened a butcher shop in Shaker Heights, Ohio. Now led by the third and fourth generations of the family, it operates stores in Ohio and Illinois, along with two warehouses and a manufacturing facility. Its business has grown from its butcher-shop roots to include a private-label food program, with products developed in collaboration with manufacturers and Heinen’s culinary teams.