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Founded in 1917 and independently owned, National Electric Coil has spent more than a century focused exclusively on the power-generation industry. From its beginnings servicing West Virginia mines, the company grew into a specialist supporting owners of large high-voltage generators through engineered winding work and outage services. NEC employs more than 400 people and operates facilities in Texas and Ohio, including a Columbus site built around the repair and refurbishment of large rotating electrical equipment.
Since 1934, Washington, D.C.-based National Engineering Products has manufactured American-made sealants for high-temperature, high-pressure industrial joints and fire-stop applications. Its signature COPALTITE compound has remained on the U.S. Navy’s Qualified Product List for more than 90 years, while asbestos-free NEPSEAL 30 serves as a non-hardening fire-stop sealant. All products are made in Washington, D.C. for distribution across the United States and worldwide.
Founded in 1979 and owned since 2001 by Kim Clark and Fred Fehrmann, National Fiber Technology is a Lawrence company known for turning textile craft into the creatures audiences recognize on screen. Its custom performance fur work has appeared on characters such as the Grinch, King Kong and Chewbacca, while also supporting costume and special-effects makers worldwide.
Since 1935, family-owned National Flag & Display Co., Inc. has manufactured custom banners, flags and display materials from its New York base. Its 50,000-square-foot production and distribution facility supports projects ranging from New York Stock Exchange IPO banners to flag installations at Rockefeller Center, with project managers overseeing production, shipping and installation.
Founded by Timothy P. LaRiviere in 1996, National Fleet Services has grown from a Detroit upfitter into a four-location company serving North American commercial fleets. Its work is shaped by OEM veterans, engineering depth and a 100,000-square-foot Ohio flagship plant built for complex, high-volume vehicle modifications. National Fleet Services is ISO 9001:2015 certified.
National Flight Services provides aircraft and helicopter maintenance, repair, inspection, modification, interior, avionics, component, and engine services. Its capabilities include TPE331 and T76 engine repair and overhaul, airframe services, avionics installations and repairs, helicopter maintenance, component services, and support for corporate, regional airline, government, military, and privately owned aircraft.
National Gypsum Company is a building-products company headquartered in Charlotte, North Carolina, and has marketed products under the Gold Bond, ProForm, and PermaBASE brands since 1925. Its affiliated manufacturers operate facilities across North America, producing gypsum-based construction materials and related paper products. The company also provides technical resources and testing services for the building-products industry.
Founded in 1985, National Hose & Accessory supplies and fabricates industrial and hydraulic hose assemblies, gaskets, fittings, and related fluid-handling components from its Houston-area operations. Its trained technicians build assemblies to manufacturer specifications and NAHAD guidelines, while ASME Section 9 certified welders handle custom metal hose fabrication. The company also supports customers with on-site testing up to 5,000 PSI and OnGuard™ asset management, helping industrial operations replace reactive hose failures with planned maintenance.
Family-owned and operated since 1984, National Hydraulic Systems LLC in Connellsville makes and repairs hydraulic hose assemblies, adapters, and specialty lines for equipment and vehicles. Its technicians can duplicate hoses and lines from an existing OEM assembly, often while customers wait, and provide 24-hour hydraulic hose service for urgent repairs. The company also maintains an extensive inventory, including quick couplers rated to 10,000 psi, serving Western Pennsylvania and surrounding areas.
Since 1989, Baltimore-based National Imaging Systems has helped paper-intensive organizations manage their printing through equipment, supplies, repairs and managed print services. The company stands out as one of only 50 HP Premier Partners in the United States, with trained teams supporting HP, Epson and Xerox technology. NIS also remanufactures LaserJet toner cartridges, keeping used supplies out of landfills while serving customers across Maryland and the Mid-Atlantic.
National Ink & Stitch is an Owings-based custom decoration shop known for guiding customers from an initial idea through a finished branded product. Its in-house team serves businesses, schools, nonprofits and promotional distributors, with particular experience in contract decoration and detailed embroidery work.
Founded in Cumberland, Maryland, in 1937 to solve a fiber manufacturer’s small-hole problem, National Jet Company now makes micro-hole components and precision-machined parts for applications where flow and accuracy matter. The family-owned company, purchased by Sam and Pam Griffith in 1992 and passed to Sam Jr. in 2020, drills holes as small as 0.0005 inch and builds many of its own drilling machines and tooling. Its long-running specialty includes U.S.-made spinnerettes and other precision parts, supported by ISO 9001 quality management and ITAR registration.
Founded in West Virginia in 1988, National Liftgate Parts is a Cincinnati-based distributor and manufacturer of replacement parts for truck liftgates, winches and cranes. Its specialists help fleets identify hard-to-match components, including through a photo-based parts-finding service, while the company supplies aftermarket and OE replacements across North America and the Caribbean. National Liftgate Parts reports a 99.6% order-accuracy rate and same-day shipping for in-stock orders placed by 3 p.m. EDT.
Since 1903, Cincinnati-based National Machine Tool Company has manufactured custom keyseat millers for cutting internal keyways in blind or open-ended bores, including applications where no relief hole is available. Now in its fourth generation of family ownership, the company designs tooling for both manual and CNC equipment and works with machining firms on difficult slotting problems. Its specialized solutions include tools for indexed multiple-slot and radiused-keyway applications.
From its headquarters in Tiffin, Ohio, National Machinery LLC builds cold- and warm-forming machinery and develops the metal-forming processes behind it. Its Met-MAX Innovations division brings more than 30 technical professionals and a history of 800 patents in 18 countries to complex forming challenges, while a worldwide service network supports customers throughout the life of their equipment. National Machinery LLC holds ISO 9001:2015 certification.
Privately held and family-owned, National Magnetics Group traces its company roots to 1940 and is known for domestic production tailored to demanding technical applications. From its Bethlehem operation, the group develops and manufactures custom magnetic ceramics and related components for industrial customers around the world, with quality controls based on ISO 9001.
National Magnetics Group, Inc. brings several U.S. manufacturing divisions together as a single source for engineered ceramic materials and custom components. The company serves customers from prototype through high-volume production, with fully integrated manufacturing in the United States and an emphasis on consistent material properties and uniform characteristics.
Since 1964, National Material Company has supplied and processed flat-rolled steel and aluminum through a network of U.S. service centers and processing facilities. The company combines in-house processing with supply-chain management and testing expertise, shipping more than 2 million tons of metal annually for manufacturers ranging from automotive OEMs to industrial equipment makers. Its automotive-focused operations are IATF 16949 certified, alongside ISO 9001-certified quality systems.
Family-owned National Metal Industries has supplied fencing products to contractors and homeowners from Oceanside, New York, since 1950. Now in its third generation, the company operates as a wholesale fence distributor with more than 10,000 SKUs, nationwide delivery and in-house custom gate and PVC fabrication. Its contractor-focused service includes same-day shipping on qualifying in-stock orders and technical help with product selection and specifications.
Family-owned National Metal Shapes grew from John K. Vogel’s one-man shop into a Delaware, Ohio manufacturer serving the construction industry since 1970. More than 50 years later, the company remains known for responsive, direct service and for adapting its manufacturing capabilities to customers’ flooring needs, including custom designs.