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Founded in 1934, Lebanon, Ohio-based Overly Hautz Company designs and manufactures fabricated metal mounting systems for electric motors, gearboxes, and other power-transmission equipment. The company pioneered fabricated motor bases and rails and has built more than 6 million motor mounts, drawing on a nine-decade archive of designs to handle both standard NEMA applications and custom mounting challenges. Its products are manufactured in the U.S.A., with production supported by robotic welding and precision laser technology.
Founded in 2019 by former law-enforcement and military veterans, Overwatch Optics develops tactical and competition firearm optics designed to bring useful features and reliability to a more accessible price point. Its carry optics are shaped by input from SWAT officers, Special Forces operators, and defensive-pistol instructors, including the Samaritan 2 dot sights for full-size and micro pistols. The company also backs its products with a 30-day money-back policy and limited lifetime warranty.
Veteran-owned and Ohio-based, OVS Knife Co. brings more than 50 years of experience to the industrial cutting and processing industry. The company is known for durable, customized solutions and for working from a customer’s sample, drawing, or existing part when a standard replacement will not do. OVS serves manufacturers that depend on precise, long-running cutting performance.
Owens Corning FOAMGLAS® makes cellular glass insulation, a rigid material formed from sealed glass cells for building and industrial applications. Pittsburgh Corning introduced FOAMGLAS® in 1942; Owens Corning acquired Pittsburgh Corning in 2017, and the insulation is now produced at purpose-built factories in Belgium, the Czech Republic, China, and the United States. The company describes the insulation as made with an average of 50% post-consumer recycled glass.
Owens Corning is a global manufacturer of building materials, with businesses centered on roofing, insulation and doors. The company’s material-innovation focus supports products used across residential, commercial and industrial construction, while its workforce of more than 20,000 operates in 30 countries. Its recognizable pink branding and Pink Panther mark are part of a company identity that dates to 1996 in the provided materials.
Owens Corning is a branded building-products manufacturer whose businesses include roofing, insulation, and doors, with products serving residential, commercial, and industrial markets. The company identifies Toledo, Ohio, as its world headquarters and says it operates globally, with manufacturing facilities across North America, Europe, Asia Pacific, and the Americas.
Born from an Oak Ridge National Laboratory discovery, Oxyrase, Inc. has manufactured enzyme-based oxygen-removal technology and anaerobic culture media since 1987. The Mansfield company’s Oxyrase Enzyme System supports oxygen-sensitive microbiology, biological preservation, and antioxidant applications, while its scientists also develop custom formulations and OEM products for laboratories and industry. Oxyrase reports ISO 9001 certification since 2008 and currently holds ISO 9001:2015 certification.
Founded by Andrea Pierce-Naymon after her daughter became ill, OY-L makes small-batch, plant-derived skincare for face and body with a “beauty without secrets” approach. The Hudson, Ohio company handcrafts its products without animal testing and builds its formulas around transparent ingredient choices such as hemp seed oil and Manuka honey. OY-L also uses sustainable packaging where possible and donates 15% of bath-salt and body-scrub sales to Dysautonomia International.
Founded in Lorain in 1969, family-owned P.C. Campana makes steelmaking equipment and supplies while providing metallurgical and steel-mill support to customers across North America. The company is known for pairing its alloy cored wire and heavy-duty wire feeders with practical innovations such as the patented MegaCal JC-XO calcium wire and steel shipping pallets fabricated at its Lorain facility. P.C. Campana remains American-owned and American-made, with more than five decades spent solving problems for steelmakers.
P.E. Labellers designs and manufactures automatic labeling machines, with its Cincinnati operation serving as a North American Design & Manufacturing Center of Excellence. Founded in 1974, the company is known for highly modular systems that let manufacturers change labeling technologies and configurations as production needs evolve. P.E. Labellers USA, founded in 2001, supports roughly 2,000 installed machines across the United States and North America through 20 agencies and 10 service specialists.
Since 1974, P.E. Labellers has designed and manufactured automatic labeling machines, building its reputation around flexible, modular systems that adapt to changing production needs. The Italian company operates eight specialized production sites, including a Cincinnati design and manufacturing center, and supports about 2,000 machines across North America through its regional service network. Its machines are backed by 90 technical experts worldwide and round-the-clock assistance.
Since 1996, P.W. Concrete has created decorative concrete surfaces for residential and commercial properties, serving the Tri-City area from Baden, Ontario. Its work is defined by durable, low-maintenance finishes shaped through patterned and stained concrete, including distinctive Ashler Slate designs shown in its project gallery. The company says its staff bring more than 25 years of combined experience to each project.
For more than 160 years, P&G Chemicals has made naturally derived oleochemicals from responsibly sourced plant-based feedstocks, supplying P&G and chemical companies in more than 40 countries. Its global manufacturing network spans North America, Europe and Asia, with products designed as lower-carbon alternatives to fossil-based materials, including carbon-negative options. The company’s Cincinnati operation has produced refined glycerin since the 1800s, while its product-carbon-footprint methodology was verified by TÜV Rheinland in 2024.
P&G PRO adapts familiar P&G household brands into commercial cleaning solutions and equipment for businesses, from restaurants and hotels to healthcare and janitorial operations. Drawing on P&G’s more than 181-year history and a team of over 500 scientists and professionals, it pairs products such as Dawn PRO and Tide PRO with dispensing equipment and nationwide service, including installation, maintenance and emergency support. Its service team is non-commissioned and available 24/7/365, with regulatory support designed to help commercial operations run smoothly.
P&L Heat Treating provides industrial and commercial heat treatment services for metal parts from its 32,000-square-foot facility in Youngstown, Ohio. The company reports nearly five decades of experience and operates state-of-the-art furnaces and testing equipment to process customers’ components.
Founded in 1982, P&R Specialty is a privately held Piqua manufacturer of spools and reels for wire and cable applications, including plastic spools made with recycled and reprocessed resin. Its 135,000-square-foot operation includes an in-house tool and mold department, allowing the company to produce custom designs and scale output as customer needs change. P&R also emphasizes sustainable manufacturing and holds ISO 9001:2015 certification.
More than 50 years after David George Sr. opened a Cornersburg pizza shop in 1974, his family’s Youngstown bakery remains known for the pepperoni rolls first developed for West Virginia coal miners. P&S Bakery now produces filled baked foods for school lunch programs across all 50 states, as well as retail and food-service customers nationwide.
Since 1988, P&T Products has manufactured Dura-Fill hot-pour crack and joint sealants for asphalt and concrete pavement from its facility in Sandusky, Ohio. Its materials serve everything from driveways to highways and are made in the USA, with every batch tested in the company’s on-site laboratory. P&T’s hands-on leadership and direct access to its sales and lab teams are central to its customer service, while many employees bring decades of experience to the work.
P2D Bioscience is a specialty pharmaceutical company developing drug candidates for inflammatory disorders of the central nervous system, with a pipeline aimed at frontotemporal dementia, Alzheimer’s disease and ADHD. Its approach combines targeted phenotypic screening with transgenic preclinical models, while its management brings deep experience in neuroscience, toxicology and early-stage drug development. The company advances candidates through preclinical and early clinical studies before seeking partners for later development and commercialization.
Founded in 2018 to fill a need for quick-turn prototype work, P2P Manufacturing makes precision sheet-metal parts and production-ready prototypes in Streetsboro, Ohio. The lean shop specializes in helping manufacturers move from rough sketches or digital models to small-volume production without interrupting high-volume lines, and it routinely handles 400 to 500 new part numbers a month. P2P also supports the transition into production with engineering input and integrated fabrication services.