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HAMICo is a nonprofit innovation engine that advances manufacturing technologies from early research through commercialization. Its distinctive evergreen funding model reinvests portfolio distributions into new R&D, while facilities, workforce training, and venture-studio support help move deep-tech ideas toward viable companies. The organization collaborates with universities including The Ohio State University and Case Western Reserve University.
Family-owned and operated since 1960, Hycom Inc. makes precision-fabricated metal parts and components in Barberton, Ohio, with tube fabrication at the heart of its 110,000-square-foot operation. The company serves both major manufacturers and smaller machine shops through custom tube forming, machining, and related fabrication, while also producing made-in-USA carriers such as the Sportsman’s Carrier. Hycom employs more than 50 full-time people and operates under ISO 9001:2015 certification.
Founded in Marietta in 1910, Hyde Brothers Printing and Marketing produces commercial print, custom packaging, branded merchandise and related marketing solutions for organizations across the Mid-Ohio Valley. The company has evolved from Wade Hyde’s print shop into an operation that combines creative services with online company stores, fulfillment and access to more than 650 contract providers, while retaining its local-service roots.
Operating in Galion since 1941, HYDRANAMICS, a division of Carter Machine Co., designs and manufactures heavy-duty hydraulic and pneumatic cylinders. Its engineering team draws on more than six decades of design experience, and the company has produced over 13,000 cylinders, including custom designs for demanding applications. In-house chrome plating and a dedicated repair facility support cylinder manufacturing and service from its Galion plants.
Established in 1971 as Selling Precision, Hydraulic Manifolds USA has spent more than five decades building its reputation around difficult hydraulic design challenges. The company works with OEMs and distributors, carrying projects from concept through production while suggesting practical changes that can improve function or control cost. Its operations are certified to ISO 9001:2015.
Founded in 2004 and incorporated in Florida the following year, Hydraulic Marine Systems designs and manufactures hydrostatic-drive hydraulic thrusters that propel barges, construction platforms and other commercial vessels. Its patented Silver Tsunami self-contained thruster began the company’s product line, which later expanded to shallow-draft twin-thruster and custom PowerPack systems. HMS says its equipment operates in 15 countries across six continents and is made in the United States.
Hydraulic Pros is a Fairfield, Ohio company founded in 2013 around the practical need for dependable hydraulic cylinder repair. It now serves manufacturers and industrial operators from a 50,000-square-foot facility, combining more than 100 years of team experience with a grassroots customer focus. The company handles hydraulic system repair and fabrication while also supporting customers in the field.
Known for more than 75 years in fluid power, Hydraulic Supply Company helps industrial and mobile-equipment operators keep critical systems working. Its 44 branches and repair centers pair local service with engineering support, custom fabrication, and 24/7 emergency response for customers across a wide range of demanding industries.
Formed in 2021 after its founders found limited Midwest access to the technology, Hydro Pressure + Pack provides high-pressure, cold-pasteurization processing for refrigerated food and beverage manufacturers. Based in Northeast Ohio, the company can take a product from recipe and packaging through HPP treatment and refrigerated warehousing, helping preserve food without heat, chemicals, or preservatives. Its parent company, IFS Meals, has served the food industry since 2011, while the broader team brings more than 150 years of combined food-industry experience.
Established in Cincinnati in 1963, Hydro Systems makes chemical dispensing, dosing and injection systems that help customers dilute and apply cleaning and other process chemicals accurately. The company began by manufacturing pressure washers before shifting its focus to chemical management in 1983, and now operates manufacturing and distribution facilities in North America, Germany and China as a PSG brand.
Established in 1969, Hydro Tube Enterprises is an Ohio- and North Carolina-based manufacturer known for more than 55 years of custom tubular work. The company develops components for OEM customers, with experience serving equipment makers and other industrial users from prototype quantities through production.
For more than 30 years, Hydro-Flow, Inc. has designed, built, installed and serviced water systems for agricultural, commercial and residential customers across southern Oregon. The Medford-area company is particularly equipped for irrigation systems ranging from small farms and vineyards to large agricultural producers, while also providing water treatment and well-flow testing. Its design work is backed by an Irrigation Association Certified Irrigation Designer and an in-house stock of parts for ongoing maintenance.
Founded in Akron in 2007, Hydrogen Energy Systems, LLC develops hydrogen-fuel technology for internal-combustion engines, centered on its patented Hydrogen Mixing Block™. The device replaces a carburetor or electronic fuel injector so small engines can run mechanically on 100% compressed hydrogen, and the company has tested the system across engines from 6 to 13 horsepower. HES has also demonstrated the technology in a portable generator and a six-passenger golf shuttle prototype.
Formed in June 2017 through the combination of Hydromat Inc., Motch & Eichele, and Ultra Tech Machinery, Hydromat-RE was created to carry forward support for legacy Hydromat equipment. The company serves manufacturers and job shops by rebuilding and retooling rotary transfer machines, with direct access to Hydromat OEM parts and technical support.
Founded in 1967 as a small engineering company, Hydrotech supplies and builds industrial fluid-power and automation systems, then keeps them running through repair, diagnostics, and field service. Its Cincinnati-based operation combines custom manufacturing with a nationwide hose service reaching more than 20 locations, including mobile repairs for hydraulic systems up to 6,000 psi. Hydrotech is ISO 9001:2015 certified and also provides hands-on hydraulic training for industry professionals.
Founded in 1973, HydroThrift Corporation is a Massillon, Ohio manufacturer known for custom-engineered thermal transfer systems built for demanding industrial environments. Its packaged closed-loop systems are designed for industrial equipment cooling, while its heat exchanger repair work supports industry and utilities seeking to extend equipment service life. HydroThrift reports more than 23,000 completed projects and installations around the world.
Started by Chris and Cyndi in a basement in June 2017, Hyggelight makes candles designed to become something else: after the flame is gone, the plantable seed label can grow wildflowers and the ceramic vessel can be reused. The company grew from craft-fair sales to national attention after a 2020 Good Morning America Earth Day feature, and is now a Certified B Corporation focused on reducing everyday waste while making cozy gifts.
Family-owned since 1970, Hykon Manufacturing Co. is an Alliance, Ohio, business led by Douglass and Brenda Duchon. The company is known for helping commercial and industrial customers handle wire and cordage, while also offering repair support and equipment tailored to special requirements.
Founded in Dayton in 1928, Hyland Screw Machine Products remains a fourth- and fifth-generation family-operated manufacturer known for nearly a century of precision work. The company produces turned components for industrial customers, with annual output exceeding 1 million parts, and maintains ISO 9001:2015 certification.
Hyliion is an Austin-headquartered energy technology company that designs, develops, and sells linear generator solutions for electricity production. Its KARNO Power Module uses a four-shaft linear generator core, and the company says production of its first KARNO additive components launched in 2024.