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HOFF Enterprises, Inc. manufactures commercial casework and millwork, with a history rooted in Johnstown homebuilding begun by Walt Freidhoff in 1970. Incorporated in 1991, the family business expanded into commercial casework and now operates a 50,000-square-foot manufacturing facility in Johnstown, producing work for projects across the United States and internationally.
Founded in 1889 as a drilling exploration company, Hoffman Diamond Products is a privately held, American-owned and operated manufacturer of metal-bonded diamond tooling. Its history in drilling led it into diamond-bit manufacturing, and it now supplies tooling to mining, construction, and industrial ceramics markets, including mining exploration as the last remaining American-owned manufacturer of diamond bits for that industry.
Born from tailor Adon J. Hoffman’s 1904 invention of a manual pressing machine, Hoffman New Yorker makes professional garment-pressing and finishing equipment for apparel manufacturers, laundries, and dry cleaners. The company took its current name after merging with New Yorker Pressing Machine Company in 1964 and now operates under UnityLab, with more than 120 years of experience and headquarters in Dushore, Pennsylvania.
Since 1962, Hoffman Process, Inc. has engineered and supplied custom heat exchangers for process applications where standard designs fall short. The Pennsylvania company specializes in complex thermal and mechanical designs, including alloy and titanium construction, with in-house engineering and heat exchangers built to ASME Code and TEMA standards. Its distinctive two-zone exchanger was developed specifically for vacuum soap dryers, while the company also provides reconditioning and remanufacturing for Griscom Russel units.
Founded in 1984, Hoffman-Kane Distributors, Inc. grew from a sealing division purchased by Bob Kane, whose family’s industrial heritage traces to Hoffman Engineering, established in 1962. Headquartered in Pittsburgh, the company provides industrial sealing, fluid-handling, and rotating-equipment support to customers across Western Pennsylvania, Eastern Ohio, and West Virginia, and is part of the Tencarva family of companies. Its work includes custom pump packages and pump and seal repair.
Hoffman's Forge is the southeastern Ohio blacksmithing business of James A. (Jymm) Hoffman, who has worked full time as a blacksmith since 1981, with a part-time interval from 1988 to 1990. He specializes in museum-quality reproductions and custom orders, and demonstrates traditional blacksmithing with an authentic reproduction 18th-century traveling forge. Hoffman has also taught blacksmithing at craft schools and through traditional-arts apprenticeship programs.
Since 1965, Hoffmann Tool & Die has machined traditional and specialty metals for commercial and government applications, with particular expertise in difficult Kovar and other exotic-alloy work. The Souderton company combines in-house engineering with CNC and conventional machining to produce close-tolerance prototypes, custom components, and small production runs. Privately held and purchased by Sharon and William Doucet in 2006, Hoffmann is also recognized as a Woman Owned Small Business for government purchasing.
Hofmann Industries, Inc. manufactures and fabricates tube products and provides coating services. The company lists its main office in Wyomissing, Pennsylvania, and an Eau Claire Division in Eau Claire, Michigan.
Since toolmaker and avid angler Jack Hofmann began making fishing lures in 1952, Hofmann’s Lures has built its name on durable, effective spoons and spinners made in the USA. Now owned by the Dunbar family in Greenville, Pennsylvania, the company preserves its long-running lure designs while adding features such as the Easy Clip & Spin spinner series. Its best-known Frizz spoon remains a more-than-70-year fixture for trout and panfish anglers.
Höganäs AB makes metal powders for powder metallurgy, supplying more than 3,500 mostly customer-specific products from 15 production centres worldwide. Its specialty spans demanding applications from metal injection moulding and additive manufacturing to surface coating, with MIM materials engineered for small, intricate components used in fields such as aerospace and medical devices. The company also supports customers with laboratory work, alloy development and machining assessments.
Holbrook Tool & Molding Inc. is a privately owned toolmaking and injection molding company operating from a 22,800-square-foot climate-controlled facility in Meadville, Pennsylvania. It has more than forty years of experience in molds, component parts, gages, and fixtures, with a dedicated cleanroom molding area completed in 2009. The company builds tooling and produces plastic components, including work for medical, consumer product, electronic, and automotive applications.
Founded in 1912 in Holderbank, Switzerland, Holcim is a building-materials manufacturer that produces cement, aggregates and concrete and supplies integrated building products and systems. The company now operates across 45 countries in Europe, Latin America, and Asia, Middle East and Africa, with more than 50,000 employees. Its portfolio includes low-carbon concrete and cement as well as building systems spanning foundations, flooring, walling and roofing.
With roots in Rileighs Decor, founded in 1921, Holiday Outdoor Decor has spent more than a century shaping seasonal spaces with American craftsmanship. The company is known for custom commercial holiday displays that help municipalities and businesses create gathering places, supported by a nationwide operation with 100 full-time employees and more than 150 seasonal workers.
Holla Spirits is a Pennsylvania spirits company that develops and produces vodka and ready-to-drink vodka cocktails. Inspired in State College, its founders began with a hand-labeled first batch before moving into a production space in York and expanding the lineup. Its products are sold through Pennsylvania retail and in additional states.
The website is a parked domain used as an independent marketing and referral platform for third-party appliance repair and HVAC-related services. It explicitly states that it is not the direct service provider.
For more than 50 years, veteran-owned Holly Label Company Inc. has been a northeast Pennsylvania printing business known for custom labels and tags. Its close-knit team works with customers from design through delivery, producing flexographic labels for demanding applications such as pharmaceutical packaging and food products. Holly Label has been ISO 9001:2015 certified since 2021 and participates in the UL Authorized Label Supplier Program.
Founded in 1975 by practicing dentist Shelly Greene, DDS, Holmes Dental develops dental products that make procedures more comfortable for patients and more efficient for dentists. The Willow Grove company grew from Dr. Greene’s effort to solve product shortcomings in his own practice, including with its Sore Spotter for pinpointing denture trouble spots and its QYK-SET acrylic system. Holmes Dental now supplies dental products worldwide while continuing to develop solutions with dentists and buying groups.
Holt & Bugbee Company manufactures and distributes domestic and imported hardwood and softwood lumber and finished wood products. Established in 1825, it remains a family-operated business with five generations of family leadership and is based in Tewksbury, Massachusetts. Its production includes kiln-dried lumber and customized wood flooring and millwork.
Holt Grinding Service is a precision tool-and-cutter grinding company founded by Lester Holt in 1974; Jim Holt later joined full-time and is identified as its president and owner. The company sharpens and modifies cutting tools and makes custom tools, including special tool bits produced to customer drawings. It specializes in small quantities and serves customers nationwide.
Founded in 1986, Holtec International is a vertically integrated energy-technology company that designs, engineers, analyzes, licenses, fabricates, and constructs equipment and facilities. Its manufacturing operations include nuclear power components and air-cooled condenser systems, alongside products and services for nuclear fuel management, heat transfer, and clean energy. The company reports a global operating presence across nine countries.