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Company Type and size Listed location

Harsco Industrial IKG

Harsco Industrial IKG manufactures steel and aluminum bar gratings, offering stock panels, fabricated gratings, mezzanine gratings and specialty products. Its gratings are used in airports, barns, poultry and livestock facilities, heavy industrial plants, marine and ship‑building

Type and size: Manufacturer Medium (50-500)
Listed location: Newmarket, Ontario

Harsco Rail

Harsco Rail supplies a portfolio of more than 140 distinct types and models of work equipment dedicated to track and structure maintenance, track renewal, and new track construction. The company engineers and builds a broad range of machines, such as HY‑Rail® guide‑wheel attachme

Type and size: Manufacturer Large (500-1,000)
Listed location: Charlotte, North Carolina

Harta Instruments, Inc.

Harta Instruments, Inc. designs and manufactures biotechnology instrumentation for the diagnostic and pharmaceutical sectors. Its portfolio comprises microplate luminometers, reference microplates, a variety of tubes and related systems, and motor controllers and drivers.

Type and size: Manufacturer Micro (1-10)
Listed location: Gaithersburg, Maryland

Hartchrom, Inc.

Hartchrom, Inc. offers certified surface‑treatment solutions, holding ISO 9001:2000 and ISO 14001 accreditations. The firm’s plating portfolio encompasses hard chromium, hard nickel, thick nickel, Ni‑SiC dispersion, nickel‑phosphorous electrolytic, electrolytic copper, auxiliary

Type and size: Fabricator Small (10-50)
Listed location: Watervliet, New York

Hartco, Inc.

Hartco, Inc. manufactures polymer‑coated solutions for automotive, clean‑room, football, sign‑manufacturing, and occupational‑therapy applications. Its product line includes sand‑mask resists, sandblast stencils, contamination‑control flooring, tacky and sticky mats, cleaners, an

Type and size: Manufacturer Small (10-50)
Listed location: Cincinnati, Ohio

Hart & Cooley, Inc

Hart & Cooley, Inc designs and produces a full line of HVAC components, including air registers, grilles, diffusers, and duct systems, together with metal, gas and fuel chimney systems.

Type and size: Manufacturer Enterprise (1,000+)
Listed location: Grand Rapids, Michigan

Hartech Group

Hartech Group distributes CNC machines and a broad range of machine tools. Its product portfolio includes equipment for EDM, tool cutting, metal forming, chemical milling, and various automated machinery solutions. The company also supplies grinders, lathes, electronic pumps, 3‑D

Type and size: Manufacturer
Listed location: Tampa, Florida

Harte-Hanks Direct Marketing

Harte‑Hanks Direct Marketing delivers e‑commerce and point‑of‑sale fulfillment solutions while also offering data cleansing and acquisition services. The firm enhances supply‑chain efficiency through optimization, kitting, and printing capabilities. Its logistics portfolio includ

Type and size: Service Company Enterprise (1,000+)
Listed location: Cincinnati, Ohio

Hartel International LLC

Hartel International LLC provides comprehensive design, fabrication, and installation services for processing systems. Its portfolio includes batch reactors, bioprocess equipment, clean‑in‑place lines, control modules, decontamination and neutralization units, explosion‑proof ins

Type and size: I Micro (1-10)
Listed location: Fort Atkinson, Wisconsin

Hartell Pumps

Hartell Pumps designs and manufactures a range of fluid handling solutions, including condensate removal pumps, wastewater removal pumps, ice‑machine replacement pumps, and magnetic‑drive circulating pumps. The company also supplies a full line of pump components such as drain‑pa

Type and size: Manufacturer
Listed location: Ivyland, Pennsylvania

Hart Enterprises

Hart Enterprises manufactures special‑application needles and custom medical devices on a contract basis. Its product portfolio spans hypodermic needles, cannulas, small‑diameter tube fabrications, and a range of procedural needles—including angiographic, biopsy, and spinal model

Type and size: Custom Manufacturer Medium (50-500)
Listed location: Sparta, Michigan

Harter, C. J. & Son Machinery, Inc.

Harter, C. J. & Son Machinery, Inc. distributes machining centers, CNC lathes, drill machines and surface grinders.

Type and size: Distributor Micro (1-10)
Listed location: Dallas, Texas

Harter Company

Harter Company supplies a full range of drywall and plaster solutions, offering standard drywall panels, steel stud framing, thermal and acoustic insulation, and acoustical ceiling systems.

Type and size: Distributor Small (10-50)
Listed location: Omaha, Nebraska

Harter Industries, Inc

Harter Industries, Inc designs and builds solar heating solutions for swimming pools, offering a product line that comprises rigid solar collector panels and flexible mat‑type solar collectors.

Type and size: Manufacturer Micro (1-10)
Listed location: Matawan, New Jersey

Harters Quick Cleanup, Inc.

Harters Quick Cleanup, Inc. offers comprehensive recycling solutions that include dumpster, tote, appliance and electronic waste services. The company processes a wide range of materials such as refuse, totes, and temporary rear‑load containers, as well as consumer electronics li

Type and size: Service Company Small (10-50)
Listed location: LA Crosse, Wisconsin

Hartery Industrial Battery Co.

Distributor of industrial batteries & chargers.

Type and size: Distributor
Listed location: Mobile, Alabama

Hartford Badges

Hartford Badges provides custom manufacturing of identification cards and related products, offering a portfolio that includes name badges, name tags, photo ID badges, photo ID cards, membership cards, convention badges and visitor badges.

Type and size: Custom Manufacturer Micro (1-10)
Listed location: West Falls, New York

Hartford Boiler Repair Works Inc.

Hartford Boiler Repair Works Inc. delivers comprehensive boiler repair, installation, and inspection solutions, while also offering maintenance and repair for pumps, valves, and steam traps.

Type and size: Service Company
Listed location: West Hartford, Connecticut

Hartford City Foam

Hartford City Foam manufactures custom packaging and shipping solutions, delivering foam inserts, protective bags, sleeves, tubes and pouches tailored to client specifications. The company works with a broad palette of cushioning materials such as polypropylene, polyurethane foam

Type and size: Manufacturer Small (10-50)
Listed location: Hartford City, Indiana

Hartford Clamp Co., The

Manufacturer of woodworking clamps.

Type and size: Manufacturer Small (10-50)
Listed location: South Windsor, Connecticut

Hartford Concrete Products, Inc.

Hartford Concrete Products, Inc. manufactures precast concrete components and is certified to ISO 9001:2000. The firm’s core expertise lies in producing controlled‑environment vaults (CEV), equipment enclosures (EE), concrete universal enclosures (CUE), as well as utility manhole

Type and size: Manufacturer Medium (50-500)
Listed location: Hartford City, Indiana

Hartford Heat Treat

Hartford Heat Treat delivers comprehensive heat‑treatment solutions for components made from nickel, stainless steel, aluminum, carbon steel, alloy steel and other materials. The facility can accommodate parts up to 45 ft × 15 ft × 15 ft and offers a full suite of services, inclu

Type and size: Fabricator Micro (1-10)
Listed location: New Albany, Indiana

Hartford Installations

Hartford Installations delivers comprehensive installation and project‑management solutions for commercial, industrial, and institutional customers. Its capabilities encompass move coordination, conveyor system setup, material‑handling equipment installation, pallet‑rack assembly

Type and size: Service Company Micro (1-10)
Listed location: South Portland, Maine

Hartford Technologies, Inc.

Hartford Technologies, Inc. produces precision balls, pins, needles, rollers, shafts and custom bearing assemblies for customers across all global markets. The product portfolio spans a broad spectrum of materials, finishes, plating options and grades. For automotive and industri

Type and size: Manufacturer Large (500-1,000)
Listed location: Rocky Hill, Connecticut

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