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Since 1946, Lenz Inc. has designed and manufactured fluid-power connectors and hydraulic products, with its distinctive O-ring Seal Tube Fitting at the center of the business. The Dayton, Ohio company also produces filtration and tank-accessory products, pressure gauges, and adapters for mobile and industrial applications. Lenz combines long and short-run production with CNC machining and stocked inventory intended to support off-the-shelf delivery.
Founded in 1969, Leonardo DRS is a defense technology manufacturer headquartered in Arlington, Virginia, supplying advanced systems to U.S. national security customers and allied forces. Its operations include a broad naval electronics manufacturing business and specialized sensing technologies, with more than 600,000 square feet of manufacturing and test space across eight naval electronics locations.
Family-owned and operated in Mansfield since 1937, Leppert Machine provides custom machining, fabrication, and industrial repair from the same location. Its 40,000-square-foot manufacturing operation houses more than 60 machines, while the company’s experienced machinists and fabricators handle projects ranging from custom replacement parts to rebuilt industrial equipment.
Levison Enterprises, formerly EPI Global, repairs power supplies and plasma displays used in harsh conditions, including units for programmable entry panels. The same team that created the EPI Global Plasma Display continues to support and troubleshoot those systems, preserving the company’s specialized expertise after the name change.
Locally owned and operated in Northwest Ohio, Levison Enterprises grew from an AC plasma-display manufacturer into a domestic electronics manufacturing partner. Its engineers help customers bring new designs into production while also keeping older electronic systems viable when parts or documentation have disappeared. The company operates from a 15,000-square-foot Millbury facility and holds AS9100, ISO 9001, and ISO 13485 certifications by NSF-ISR.
Lewark Metal Spinning is a family-owned and operated metal spinning company founded in 1993 and based in Dayton, Ohio. It makes custom metal-spun parts and has become a nationally recognized name in metal spinning, serving industries that range from cookware to aerospace.
LEWCO, Inc. is a Sandusky, Ohio-based industrial equipment manufacturer whose business grew from the Ohio Welding Company, founded in 1917, into two long-standing lines: material-handling conveyors and industrial ovens. The family business is now in its third generation and reports more than 980,000 square feet of manufacturing space across LEWCO and its LogistiQ division, which serves retail, e-commerce, and distribution markets.
Owner Lou Spiezio brings more than 30 years of hands-on industrial manufacturing experience to Lewis Center Manufacturing, a Lewis Center, Ohio company known for serving U.S. government and Department of Defense customers. It produces specialized parts and assemblies for those customers as well as private companies, including automotive specialty and racing shops, handling both one-off work and larger production runs.
Lexi Herbers launched Lexi Lou's Crafting Co in 2022 as a creative outlet alongside her 9-to-5 job, growing it into a Cincinnati-area home shop known for durable, personal embroidery. She creates custom work for individuals and businesses, including keepsake crewnecks made from customers’ baby clothing.
Known for its long-running focus on hydraulic lift gates, Leyman Lift Gates has been manufacturing equipment for delivery fleets since 1940. Based in Cincinnati, the company serves transportation and logistics operations with gates designed for demanding, high-cycle work, while providing in-house technical and parts support after installation.
Established in January 1947, Seoul-based LG Chem has grown from a chemical company into a science-focused corporation with three distinct businesses and a global network of 56 sites. Its work serves industrial and healthcare customers, with particular emphasis on advanced materials for the battery and electronics markets. LG Chem employs more than 18,000 people worldwide.
Founded in 1904 and headquartered in Aschaffenburg, LHY Powertrain develops and manufactures modular high-pressure drive systems that combine hydraulics, power transmission and electronics for mobile and stationary machinery. The company employs about 1,400 people across production sites and subsidiaries worldwide, supplying customers in more than 50 countries while supporting equipment makers in demanding fields such as construction, mining and agriculture. LHY’s quality system is certified to DIN EN ISO 9001, with environmental and energy management additionally certified to ISO 14001 and ISO 50001.
Since 1818, Libbey has grown from a glassmaker rooted in Toledo, Ohio, into a global tabletop company known for combining artistry with practical durability. Its history includes pioneering machine-blown glass and other glassmaking firsts, while its products serve chefs, foodservice professionals and people entertaining at home.
Family-owned and operated in Cincinnati, Libby’s Gourmet Desserts is known for its Food Network-featured Cheesecake On-A-Stick. The company supplies gourmet desserts to hospitality customers across 13 cities in seven states, as well as serving local retail shoppers.
With two Delaware, Ohio foundries under one roof, Liberty Casting makes American-made gray and ductile iron castings for both large, complex parts and medium- to high-volume production. Its vertically integrated operation carries projects from casting design and tooling through in-house finishing, inspection and shipment, with capacity ranging from small automated castings to pieces weighing 12,000 pounds. Liberty is also a family-owned, family-oriented company whose customers describe partnerships lasting as long as 15 years.
Since 1984, Liberty Die Cast Molds in Ostrander has designed and built tooling for vertical and horizontal die-casting machines, with a particular specialty in rotor molds and end-shield tooling. The company also develops replacement molds and machining solutions, including horizontal rotor dies with internal trimming that eliminates a secondary trimming operation. Liberty is led by President Duane Glick and Vice President Jeremy Glick.
Since introducing its IMP system in 1993, Liberty Instruments has built a reputation around practical audio measurement tools for speaker builders, engineers, and researchers. The company develops systems such as PRAXIS for analyzing loudspeakers, rooms, and electronic equipment, while its site also preserves technical resources from earlier generations of its work.
Founded in 1986 by Timothy Beam, Cincinnati’s Liberty Marking Systems produces custom labels for manufacturers, distributors and industrial operations. Now led by Tim’s son Brian Beam, the family-run company has grown from a basement label broker into a 29,000-square-foot plant with five flexographic presses, while retaining a hands-on focus on difficult applications, urgent orders and practical labeling guidance. Liberty maintains ISO 9001:2015 quality certification and is an approved supplier of UL- and CSA-compliant labels.
Liberty Steel Industries, Inc. is a family-owned steel processor and manufacturer headquartered in Warren, Ohio, producing stampings and blanked parts alongside coil processing and related fabrication. The company says it has served customers for more than six decades and operates stamping facilities in Warren and Saltillo, Mexico, as well as a Lordstown distribution location.
Founded in 2000, Liberty Tire Recycling collects end-of-life tires across the U.S. and Canada, then resells usable tires and turns the rest into recycled rubber products. With more than 50 collection and processing facilities, 3,500 employees and annual recovery of over 4.7 billion pounds of rubber, the company operates one of North America’s largest tire-recycling networks. Its materials find second lives in products such as rubber mulch and rubberized asphalt while helping divert tires from landfills and abandoned stockpiles.