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Founded in Dayton by John Homan in 1935, Allied Supply Company is a family-owned wholesale distributor serving HVACR contractors and equipment-maintenance professionals across the Midwest. The company operates six Ohio locations and is known for pairing broad HVACR supply with specialized support, including locally manufacturing custom-cut air filters and maintaining a Mitsubishi Authorized Training Center in Columbus. Leadership remains with John Homan’s descendants, carrying the business into its fourth generation of family stewardship.
Founded in 1950 as a standard aluminum storm-window and storm-door manufacturer, Allied Window, Inc. now focuses exclusively on custom interior and exterior storm windows. Its custom “invisible” storm windows serve residential and commercial projects, including historic and single-glazed buildings, while helping improve energy efficiency and protect original window sash and frames.
Known in the Cleveland area for more than 75 years, Allied Witan Company makes industrial noise-control devices for pneumatic equipment. Its Atomuffler products help factories reduce harsh air-exhaust noise and dangerous blasts while keeping operations flowing cleanly.
Founded in Christchurch in 1971 as a maker of industrial electronic controls, Allient New Zealand now designs and manufactures electronic control systems for power wheelchairs, mobility scooters and other assistive equipment. Its Christchurch headquarters remains the centre of research and development, while the company operates as part of the global Allient group and supports customers through offices across New Zealand, Asia, Europe and North America. Allient New Zealand operates within an ISO 13485-certified quality system and also adapts its compact, programmable controls for medical and light-industrial applications.
Founded in 1939 as Hathaway Corp., Buffalo-headquartered Allient has evolved from an instrumentation company into a global engineering manufacturer focused on motion technology and related systems. Today, its 2,300-plus employees work across 27 locations, supporting OEMs and system integrators whose equipment must perform reliably in demanding applications. Allient’s expanded identity, adopted in 2023, reflects capabilities extending beyond its original motion focus.
Founded in 1943, Alloy Engineering designs and fabricates high-nickel alloy and stainless-steel equipment for the extreme heat and corrosion found in industrial processing. The Berea company is particularly known for pioneering ammonia-oxidation catalyst baskets for nitric-acid plants in 1975, while also producing custom pressure vessels and furnace equipment. Its in-house engineering, machining and repair work supports both new installations and the upkeep of existing process equipment.
Alloy Precision Technologies is a manufacturer of precision metal bellows, bellows assemblies, ultra-thin wall tubing, and welded/brazed assemblies. The company offers precision machining, welding, and product testing services, serving industries such as aerospace, defense, energy, oil & gas, and medical. It is certified to AS9100D and NADCAP, and operates from a facility in Mentor, Ohio.
Alloy Welding & Fabricating carries a Northeast Ohio stainless-fabrication tradition that began with the Wunderlich family in the 1940s. Today, the company applies that experience to low-volume, high-precision work for manufacturers and engineering teams, guiding projects from early design through finished assembly.
Alloyd Insulation Company, Inc. handles industrial and commercial insulation work for construction and maintenance projects across Ohio and Indiana, taking projects from fabrication through installation. Based in Dayton with a Columbus office, the company has built its work around coordinated planning, project supervision, training and a thorough safety program. Its affiliated Alloyd Sheet Metal operation, established in 1997, extends the company’s reach into architectural metal roofing and wall-panel work across four states.
Allpass Corporation manufactures plastic components and fittings for the water-heater and appliance industries, with stated expertise in plastic injection molding and extrusion. The company reports more than 100 combined years of team experience and describes its TEGO dielectric waterways as made in America.
Allredi, LLC supplies and manufactures surface-preparation equipment and related safety and environmental solutions, pairing a nationwide service network with custom industrial systems. The company was formed in early 2020 when Marco Group International and APE Companies joined forces, bringing Marco’s manufacturing roots—dating to 1981 in Davenport, Iowa—together with APE’s abrasive-blasting distribution business. Allredi also supports projects through inspected rental equipment, on-site technical service, and equipment repair and modernization.
Cleveland’s AllSigns & Designs is a full-service sign shop that takes projects from layout and permitting through fabrication and installation, making everything from yard signs to custom electric signs. It is one of only two companies on Cleveland’s West Side identified as Underwriters Laboratories registered, and it highlights real neon work as a specialty it believes few local shops still offer. The company also services, installs, and fabricates channel letters for businesses across Northeast Ohio.
Allstate Can manufactures metal packaging at its Parsippany, New Jersey plant, producing cans and tins for businesses across multiple industries. The company traces its can-making legacy to more than a century of U.S. production, beginning with the Papera family’s olive oil cans; it was acquired by The Ohio Art Company in late 2023. Its metal packaging protects and preserves products while supporting custom decoration and printing.
Ally Printing and Marketing Services combines commercial printing with marketing support, producing print and promotional materials for businesses from its Middleburg Heights operation. Its owner, production manager and pressman each bring two to three decades of printing-industry experience, while in-house capabilities extend from offset and digital work to wide-format output and fulfillment. Ally also positions itself as a hands-on marketing partner, analyzing business goals rather than simply taking orders.
Alpek Polyester is a global producer of polyester products and a leader in the polyester value chain, with manufacturing operations across multiple countries. Its business grew through acquisitions, joint ventures, and expansions over nearly 50 years, and it describes its work as delivering chemistry- and materials-based solutions, including sustainable packaging.
Built around polyester from raw material to recycling, Alpek Polyester produces PTA, PET resins and sheet, recycled PET, and polyester fibers for packaging and everyday goods. The company traces its polyester journey to Mexico in 1975 and now operates a global manufacturing network spanning nine countries, including facilities in Cincinnati and other U.S. locations. Its integrated value chain and focus on PET circularity distinguish Alpek Polyester from manufacturers focused on a single stage of production.
Founded in November 1988 as an induction-equipment repair business, Alpha 1 Induction Service Center is a Columbus-based Inductotherm Group brand known for helping forging manufacturers get back into operation quickly. Its 40,000-square-foot facility supports induction coil repair and related service for equipment used in the forging industry.
Since 1999, Alpha Clicheria has made high-definition flexographic plates and developed prepress and color-management technologies for the packaging and graphic-printing industries. With more than 150 employees, branches in four Brazilian states and operations serving the national market, the company combines 24-hour plate production in Valinhos with specialized solutions such as its Bellissima DMS and Alpha Dot Plus technologies. Its factories in Valinhos and Gaspar generate 100% of their consumed electricity from photovoltaic energy.
Founded in 2019, Alpha Omega Machining Inc. provides full CNC machining from prototype through finished product in Painesville, Ohio. The company stands out for its 100% USA-sourced manufacturing, including raw material through final assembly, and supports both production work and 24/7 emergency jobs. Its quality system is ISO 9001:2015 compliant.
From its roots as Monsanto Instruments & Equipment in 1964, Alpha Technologies has spent more than 60 years developing rheology testing instruments and software for rubber and polymer manufacturers. Headquartered in Hudson, Ohio, the company is known for having developed the first Rubber Process Analyzer and supports its equipment with certified applications engineers, training, and consulting. Its global customer base uses Alpha testing to understand materials before, during, and after cure.