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National Diamond Tool and Coating is a family-owned Westlake, Ohio manufacturer of custom PCD and CBN tooling, with diamond-tipped tools made in the USA at its 20,000-square-foot facility. Founded in 1994 by Thomas Abersold, the company remains under family leadership, with his son Bill serving as president since 2017. Alongside custom manufacturing, it repairs and retips tools from other manufacturers and provides diamond coating services for demanding machining applications.
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.
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.
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.
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 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.
Founded in 1967 as an on-site electrostatic painting company, Brook Park’s National Office has grown into both an office-furniture dealer and manufacturer serving Northeast Ohio and customers nationwide. Its Cleveland-made gen2 line gives the company a factory-direct manufacturing arm alongside its showroom, design, installation and workplace-support services. The Schneider family remains at the helm, with founder Robert Schneider’s son, Gregory, serving as CEO.
Cleveland-based National Plating Corporation has spent more than 68 years finishing fasteners and steel parts, with a particular focus on high-volume barrel zinc plating. Its large barrel lines are built for consistent production and quick turnaround, while rack plating handles parts with demanding configurations or specifications. The company operates from a roughly 100,000-square-foot facility and serves orders across the United States under an ISO 9001:2015 quality system.
Since 2005, Chagrin Falls-based National Polymer has developed and manufactured custom polymers, adhesives and coatings for applications where an off-the-shelf material will not do. Its senior-level chemists and engineers can take a project from deformulation or a new formulation through pilot coating, scale-up and production, including roll-to-roll work. National Polymer operates under ISO 9001:2015 systems and received the 2022 Excellence in Manufacturing Award from MAGNET and the Geauga Growth Partnership.
Established in 1968, National Pride Equipment manufactures hand-built water treatment and car wash equipment in the USA, while also installing and servicing systems for operators. With more than 50 employees, the company supports car washes from equipment selection through installation, maintenance, and repair, including service across six states.
Since 1978, National Pump and Process has built its Ohio business around giving existing industrial pumping equipment a longer service life. The company serves industrial and municipal customers, with particular experience rebuilding pumps from any manufacturer and supporting repair customers across the eastern and central United States.
National Rolled Thread Die Company manufactures and supplies flat rolled dies, flat threading tools, knurling tools, and custom dies for bolt and screw manufacturing. The company serves the fastener industry and is described in the submitted source context as ISO 9001:2015 registered, American owned, and American made.
Founded in Cleveland in 1935, National Safety Apparel makes American-sewn safety apparel and personal protective equipment for industrial workers, first responders and military personnel. The company owns and operates 11 U.S. manufacturing plants, employs more than 1,300 American workers and has more than 600 domestic sewists supporting custom design and rapid production. Its in-house research and development teams hold more than 10 U.S. fabric and design patents.
National Spinning Company, Inc. is a U.S. manufacturer operating two nonwoven manufacturing facilities through Carolina Nonwovens. It produces fiber pads of various densities and thicknesses using air-laid nonwoven technology for automotive, appliance, construction, furniture, and bedding applications, with recycled and reclaimed fibers among the usable fiber inputs.
With more than 100 years of growing and design expertise, family-owned Natorp’s Nursery grows and sells plants while creating and installing landscapes for Greater Cincinnati. Its Mason nursery spans 333 acres and includes an online plant store featuring about one million plants, backed by local horticultural advice and a one-year guarantee on properly cared-for plants.
Cincinnati-based NatrixOne makes plant-based canine supplements from its proprietary CamOlive™ blend of camelina oil and olive triterpenes. The company controls the process from its own seed and monitored cultivation through onsite cold pressing and fresh bottling at its Cincinnati warehouse, building on 20 years of research and development. Its formulation was examined in a six-week, 100-dog trial conducted by Four Paws Animal Hospital in 2018.
Natural AWA is an Ohio-based beauty brand creating natural skincare from African ingredients, including oils, shea butter and botanical treatments. Founded by Senegal-born Awa Mbaye after her own experience formulating moisturizers for dry, irritated skin, the brand draws on West African beauty rituals while sourcing primarily from women-led cooperatives in Senegal and Mauritania. Its production uses cold-pressed ingredients and a zero-waste approach, with fair-trade sourcing supporting women producers and community empowerment.