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Hamilton Casework Solutions logo

Hamilton Casework Solutions

FAIRFIELD, OH
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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.

Modular CaseworkLaminate CaseworkLaminate Lockers+57 more
Hamilton Caster & Mfg. Co logo

Hamilton Caster & Mfg. Co

HAMILTON, OH
51-200
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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.

Industrial CastersCustom CastersWheels+77 more
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Hamilton Fence

SPRIGG, WV
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Hamilton Fence is a family-owned and operated company serving its local area for many years. It makes fencing and related fabricated items, including custom-sized dog lots.

FencingChain Link FencingVinyl Fencing+11 more
Hamilton Industrial Knife & Machine logo

Hamilton Industrial Knife & Machine

HAMILTON, OH
11-50
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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.

Industrial Machine KnivesIndustrial Machine BladesIndustrial Machine Parts+59 more
Hamilton Manufacturing Corp logo

Hamilton Manufacturing Corp

HOLLAND, OH
11-50
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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.

Unattended Car Wash KiosksHTK Pay StationCTK Pay Station+50 more
Hamilton Products Group, Inc logo

Hamilton Products Group, Inc

MILFORD, OH
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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.

Security ContainersClass 5 Security Filing CabinetsClass 6 Security Filing Cabinets+27 more
Hamilton Tanks, LLC logo

Hamilton Tanks, LLC

COLUMBUS, OH
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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.

Steel Storage TanksStorage Tank SystemsAsphalt Storage Tanks+52 more
Hamlet Protein logo

Hamlet Protein

FINDLAY, OH
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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.

Specialty Soy Protein IngredientsSoy Fiber Feed IngredientsHP 100 Milk Replacer Ingredient+21 more
Hamlin Apothecary logo

Hamlin Apothecary

2-10
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Handmade in Harlem, Hamlin Apothecary creates all-natural whipped body butter by infusing moisturizing butters and oils with botanicals. Mommy-owned, made and operated, the brand grew from founder Terri Freeman’s search for cleaner body care during pregnancy and draws inspiration from her great-great-grandfather’s Hamlin Drugs, founded in Raleigh in 1904. Its products are produced in micro-batches, with aromatherapy-based scents and carefully sourced, food-grade-or-better raw ingredients.

Natural SkincareBotanical Body CareWhipped Body Butter+31 more
Hamlin Newco, LLC logo

Hamlin Newco, LLC

AKRON, OH
2-10
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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.

Industrial Metal PartsStamped Metal PartsMetal Assemblies+13 more
Hamlin Newco, LLC logo

Hamlin Newco, LLC

AKRON, OH
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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.

Industrial Metal PartsStamped Metal PartsMetal Assemblies+16 more
Hammelmann GmbH logo

Hammelmann GmbH

MIAMISBURG, OH
201-500
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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.

High-Pressure PumpsHigh-Pressure Pump AggregatesWater-Jet Technology+20 more
Hammer & Anvil Brews & Blues, LLC logo

Hammer & Anvil Brews & Blues, LLC

1
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Hammer & Anvil Brews & Blues, LLC is a small game studio creating free, no-login browser games, from neon tank duels to beach soak-artillery. Its Game Room also includes fishing challenges and Prime Lattice, an interactive mathematical toy described as the heir to a 2014 Prime Number Table.

BeerBrowser GamesTaproom Service+6 more
Hammer Packaging logo

Hammer Packaging

WEST HENRIETTA, NY
501-1,000
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Hammer Packaging is a package printer specializing in shrink sleeve, pressure sensitive, cut and stack, flexible packaging, stand-up pouches, roll-fed, foam, seed packets, and roll-on/shrink-on labels. Its printing technologies include flexographic, offset, web offset, and digital printing.

PackagingLabelsPouches+14 more
HammerTek Corporation logo

HammerTek Corporation

BETHLEHEM, PA
11-50
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HammerTek Corporation, working with deflection elbows since 1981, invented and manufactures the SMART ELBOW® for pneumatic and slurry conveying systems. Made in the United States, its impact-free design helps prevent elbow wear, plugging, product damage and the downtime associated with conventional bends. The company says its elbows have been installed more than 40,000 times in over 50 countries.

SMART ELBOW® Deflection ElbowsFlanged ElbowsSocket Weld Elbows+34 more
Hammond & Irving, Inc logo

Hammond & Irving, Inc

AUBURN, NY
51-200
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Founded in Auburn, New York, in 1919 by Charles Hammond and Robert Irving, Hammond & Irving manufactures seamless rolled rings and open-die forgings for demanding industrial applications. The company produces rings up to 58 inches in diameter and supports quantities from one to 1,000, pairing its Wagner 63/63 ring mill and forging presses with in-house material testing. Hammond & Irving is ISO 9001 registered and has supplied forged products beyond its local market for more than a century.

Seamless Rolled RingsOpen Die ForgingsForged Rings+62 more
Hammond Group, Inc logo

Hammond Group, Inc

POTTSTOWN, PA
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Hammond Group, Inc. manufactures advanced battery chemistry and specialty lead products, with more than 90 years of experience and production facilities in the United States, the United Kingdom, and Malaysia. Its Hammond, Indiana headquarters also houses a research and development lab, where the company provides technical research and battery testing for lead-battery manufacturers.

Lead OxidesBattery Red LeadAdvanced Battery Expanders+52 more
Hammond Manufacturing Ltd logo

Hammond Manufacturing Ltd

CHEEKTOWAGA, NY
501-1,000
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Hammond Manufacturing began as a family business in a Guelph backyard workshop in 1916 and remains a fourth-generation company based in the Ontario city. With about 700 employees and operations across several countries, it is known for more than a century of serving electrical and electronic manufacturers, utilities, and institutions with durable infrastructure products.

Electrical EnclosuresElectronic EnclosuresIndustrial Enclosures+42 more
Hampton Concrete Products, Inc logo

Hampton Concrete Products, Inc

PITTSBURGH, PA
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Hampton Concrete Products, Inc. manufactures precast concrete products and custom railings from its Valencia, Pennsylvania operation. Founded in 1957 by Charles M. Knox, the locally owned company began with ornamental railing and expanded after acquiring Hampton Concrete Products in 1960; it says it has provided precast concrete products since 1957. Its history also includes in-house development of the Cleargress basement door.

Precast Concrete ProductsPrecast Concrete Unit StepsPrecast Basement Entrances+55 more
Hampton Controls, Inc logo

Hampton Controls, Inc

WENDEL, PA
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Hampton Controls, Inc. manufactures electric process heaters and builds custom control panels, alongside supplying temperature sensors and industrial control products. Its site describes in-house heater design and production, panel fabrication from conception through assembly and installation, and repair and calibration services for industrial instrumentation.

Electric Process HeatersAir HeatersCartridge Heaters+68 more
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