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PA
Founded by dairy farmer Eric Hoover in 2015, Hoover Ag designs and manufactures farm and manure equipment in southeast Pennsylvania. The family-owned, small-batch maker builds equipment in-house and tests each solution on a working farm before it leaves the shop, with custom configurations available for different operations. Its manure dragline systems and farm equipment are shaped by the practical demands of daily agricultural work.
Hoover Conveyor is a family-owned and operated Pennsylvania manufacturer of mine-duty material-handling equipment, including conveyors and radial stackers. Jerry and Melanie Hoover founded the business in 1984, and their three sons began transitioning into ownership in 2017. The company fabricates at its southwestern Pennsylvania headquarters and serves mining and related bulk-material markets.
Since 1955, Hoover Treated Wood Products has made pressure-impregnated fire-retardant-treated wood and preservative-treated wood, helping building professionals protect structures from fire, decay and insects. The company is especially associated with FRTW, including its PyroGuard and ExteriorFireX products, and distributes through a network of more than 100 stocking locations nationwide. Hoover also operates a newer wood-treating facility in Fairfield, Texas, serving commercial and multifamily construction markets.
Founded in 1974 by diesel mechanic Melvin Hoover, HooverTec has grown from a Terre Hill service business into a Lancaster County provider of engineered diesel engines, generators, parts, and field support. Now joined by Melvin’s four sons, the company draws on 50 years of experience to design, install, and maintain prime and standby power systems while supporting OEM equipment and off-grid operations. HooverTec is also a long-standing FPT/Iveco representative, with more than 25 years of brand experience and FPT-trained technicians.
Hope’s Caramels grew from Hope’s 2003 transition to stay-at-home motherhood into a Wilmington, Delaware maker of small-batch, slow-cooked caramels. Using simple ingredients, the company develops deep flavor through caramelization and offers handcrafted sweets for everyday treats, subscriptions, and custom event or corporate gifts. Its #sweetlife campaign connects caramel purchases with support for people affected by human trafficking.
Veteran-owned and operated in Allentown, Pennsylvania, Hörauf America builds high-speed machinery for forming paper cups and containers. Its equipment also supports paper lids, double-walled cups, and specialized packaging shapes, including the CapSure® paper lid system and non-round containers. The company provides integrated production support with inspection, stacking, and packing equipment.
Founded by Dave Zook in 2001, Horizon Structures is a family-owned Pennsylvania manufacturer of Amish-built prefabricated barns, kennels and other structures for farms, homes and government agencies. The company grew from simple run-in sheds and shed-row barns into a nationwide operation, with an approximately 65,000-square-foot facility employing 80–90 Amish carpenters and a nine-person sales and support staff. Its buildings are delivered across 46 states and backed by written warranty coverage.
Since 2001, Horizon Technology Inc. has made small metal parts through advanced powder metallurgy, developing custom materials and processes for components that conventional powder metal methods could not produce. The St. Marys manufacturer is especially distinctive for high-temperature sintering up to 2,500°F and for applying soft magnetic materials to demanding electric-motor designs. Horizon is ISO 9001:2015 certified and draws on hundreds of combined years of powder-metallurgy experience.
Since George Terbovich started Horizon Wood Products in 1975, the family-owned company has grown into its second generation in Elk County, Pennsylvania. It is known for studying each log individually and drawing out its distinctive character, a practice shaped by local forests and decades of sawmilling experience. The company’s EverGreen initiative, established in 2000, formalizes its care for the resource and the people connected to it.
Founded by August Hörmann in 1935, the family-run Hörmann Group is a fourth-generation manufacturer and Europe’s leading supplier of doors. More than 6,000 employees work across over 40 specialized factories in Europe, North America and Asia, producing goods for private and commercial properties. Its headquarters are in Steinhagen near Bielefeld, Germany.
Founded in 1935, the family-owned Hörmann Group manufactures doors and related building products, with North American operations in the residential, commercial, and high-performance door markets. The company says its North American headquarters in Sparta, Tennessee, opened in 2020, and its group operates 40 specialized factories across Europe, North America, and Asia. Hörmann North America traces its entry into the region to its 2006 purchase of GADCO and has since expanded through additional door-manufacturer acquisitions.
From a Roaring Spring base, Horvath Chemical & Supply manufactures and distributes specialty cleaning products, degreasers, vehicle-care formulas and sanitizing supplies for professional and do-it-yourself customers. Founded in 1986 by Scott Horvath Sr., the family-owned company grew from servicing accounts out of a van into a Pennsylvania supplier serving customers across the United States. The Horvath family took full ownership in 2021, retaining a hands-on focus on customer education, product support and regional delivery.
Founded in 1975, HOSCH develops and manufactures conveyor belt cleaning systems for bulk-material transport, and says it has focused on this specialty since its founding. The company describes customized production, with up to 100,000 possible product variants, and supports installations worldwide with consulting and service.
Founded in 2009, HOTLINEGLASS-USA manufactures electrically heated interlayers that give laminated glazing de-fogging and de-icing capability, with its embedded-wire technology used in automotive, military and rail applications. Based in Butler, Pennsylvania, the company engineers each heating circuit for its application and produces its mats in controlled clean-room conditions. HOTLINEGLASS-USA is ISO 9001:2015 certified and fully inspects and tests every mat before shipment.
Born in the 1980s to solve the uneven heating and unreliable controls of existing equipment, Hotronix makes heat presses for custom apparel and screen-printing operations. Its USA-made machines introduced features including heating elements throughout the upper platen and digital controls, and the company continues that problem-solving tradition with IQ® technology and specialized equipment such as the Stampinator® 480, an in-line press designed to work with automatic screen-printing machines. Hotronix also provides technical support, repair resources, and parts for its equipment.
Family-owned since 1953, Houck Printing Company Inc. provides complete commercial printing services for the Harrisburg and Central Pennsylvania area. Based in Lewisberry, the company handles everyday business print work as well as custom labels and digital projects, with free estimates and a price-match-or-better policy on its printing.
With agricultural roots running through generations of the Hoover family, Hougar Farms operates a farm and retail supply business in Gilbertsville, providing animal feed and farm products alongside hay production and custom farming services. The farm expanded into retail in 2017 by acquiring a local agricultural supply store, and it remains distinctive for its drive-through barn, personal advice, and hometown service. Hougar Farms is also a USDA Certified Organic Farm, offering certified-organic forage as part of its hay operation.
Founded in 1927, family-owned Houghton Chemical Corporation manufactures and distributes heat-transfer fluids, antifreeze, water-treatment solutions, and other chemical products from its New England roots to customers across North America and international markets. The company’s unusual depth comes from pairing manufacturing and custom blending with an in-house laboratory, glycol testing, bulk delivery, and fluid-removal services. Houghton remains a multigenerational business shaped by its founders’ emphasis on straightforward service, employee profit sharing, and community involvement.