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Known for more than 25 years of focused experience in rotational molding, ROTOPOLYMERS supplies resins to manufacturers in this specialized industry. Its facilities across five countries support customers in more than 100 cities, with technical guidance available for formulation, machinery, and processing.
Founded in 2012, Rotunda Scientific Technologies LLC is an Ohio company known for its deep expertise in radiation protection and external dosimetry. With more than 30 years of experience in the field, it supports nuclear-industry and laboratory customers through specialized equipment, dosimetry consulting, and technical services. Rotunda is ISO 9001:2015 certified.
Founded in Findlay in 1987, Rowmark manufactures extruded plastic sheet materials for engraving, signage, awards and personalization, while The Rowmark Group has expanded into custom surface solutions and related distribution. Its U.S.-made Rowmark materials reach more than 80 countries, and the company now brings together nine business units with more than 280 employees worldwide. Rowmark has maintained ISO 9001 certification since 2004 and operates from a 90,000-square-foot Findlay headquarters.
Founded in Marion, Ohio, in 1956, Roy I Kaufman, Inc. makes custom wire rope and cable assemblies for manufacturers, combining decades of hands-on assembly experience with in-house automation engineering. The third-generation family business serves applications ranging from automotive brake cables to industrial and equipment assemblies, with production spanning prototypes through high-volume orders. Its Ohio operation maintains an ISO 9001:2015-certified quality management system.
Founded in 1968 by a veterinarian, Royal Canin makes nutrition products for cats and dogs, with its mission focused on improving their health through nutrition. Its food is developed around pets’ nutritional and health needs, and the company describes production operations and quality controls at facilities worldwide.
Founded in Cleveland in 1938, Royal Chemical is a contract chemical manufacturer that toll-blends customer formulations, packages the finished products and manages their warehousing and shipment. Unlike manufacturers with their own competing brands, Royal Chemical works exclusively on client products and protects their formulations, supporting production through five U.S. plants. Its network can reach 83% of the U.S. population within one day, while annual capacity reaches 50 million gallons of liquid and 35 million pounds of powder.
Since 1935, Royal Oak Recycling has been an independent recycler serving high-volume businesses across the United States and Canada. It is known for handling demanding waste streams at substantial scale, processing upwards of 600,000 tons of material each year while helping customers reduce what they send to landfills.
Recycling since 1950, family-owned Royal Paper Stock collects and processes commercial scrap for businesses across the Midwest, with facilities in Columbus and Cincinnati. The company stands out for building customized programs around unusual waste streams, from higher-grade paper to engineered plastics, and for connecting customers with more than 75 paper mills and plastic reprocessors across North America. Its own trucking, storage and processing operations help move material from customer docks to new markets while keeping programs practical and financially focused.
Founded in 1966, Royal Plastics is a Mentor, Ohio custom manufacturer of injection-molded plastic parts and contract-manufactured components for domestic and international customers. The closely held S-corporation has expanded from its Ohio operation into a U.S.-China manufacturing partnership, with in-house toolmaking, molding, assembly and testing supporting projects from prototype quantities through high-volume production. Royal Plastics employs 250 people domestically and 800 internationally, and operates under ISO 9001:2015 quality registration.
Founded in Cleveland in 2001 by powder-coating specialist Kirit Patel, Royal Powder Corporation manufactures powder coatings, with more than 80% of its products custom formulated to customer specifications. The privately held company combines the capacity of a larger manufacturer with the quick turnaround and willingness to handle small jobs associated with a smaller operation. Its processing methods are designed to produce Class A finishes in fewer steps, serving general industrial and automotive customers.
Since 1974, Royal Welding & Fabricating has built its reputation as a custom metal manufacturer with more than five decades of engineering and fabrication experience. Its Fullerton team works with clients from the initial design through production and testing, operating from a 43,500-square-foot plant and serving projects that require ASME-certified fabrication, including work for nuclear and aerospace industries.
A fourth-generation family business, Royal Wire Equine manufactures American-made wire organization systems for barns, tack rooms, horse trailers and show stalls. More than 60 years spent around horse shows and racetracks informs its durable, modular designs, including systems such as the expandable Main Frame for saddle storage.
Founded in Cleveland in 1953, fourth-generation family-owned Royal Wire Products manufactures filter bag cages for industrial air-pollution control, custom wire forms and equine wire products. Its patented Twist Lok and Form Lok cage systems reflect a long specialization in industrial filtration, while the Royal Wire Equine division grew from a family saddle-storage invention in 1978. Made in the USA across facilities in Ohio, North Carolina and Nevada, the company serves customers throughout the United States and around the world.
Based in West Mansfield, Ohio, Royce Industries LLC is a U.S. manufacturer known for applying automated precision to custom vehicle electrical systems. It builds wiring harnesses and LED lighting for emergency-vehicle and specialty OEM applications, with work supported by solder robotics and production capabilities that extend from prototypes through production.
Founded in 1983, Rozic Tool & Machine is an Euclid precision manufacturer known for handling both demanding production work and small prototype projects. Its critical components support aerospace and defense customers, with quality systems certified to AS9100D and ISO 9001:2015.
Established in 1995 as a Wire EDM job shop, RPG Industries is known for the deep experience its technicians bring to precision manufacturing in Tipp City. The company serves customers in fields such as automotive, aerospace and medical manufacturing, with work ranging from prototypes to production runs. RPG operates under an AS9100:2004 quality management system.
Since 1985, Aurora-based rpGatta inc. has designed, built, tested, and installed custom automated assembly and robotic equipment for manufacturing. The company is especially known for first-of-kind systems—about 80% of its projects are prototypes that must enter production when they reach the customer—and it engineers the mechanical, electrical, controls, and software work in-house. Its 81,000-square-foot facility supports fully simulated equipment runoffs before shipment, and the company holds seven U.S. patents.
Founded in Cincinnati in 1969 as a lithography trade-services company, RPI Graphic Data Solutions has grown into a family-operated manufacturer of commercial print and custom packaging. Now in its third generation and majority women-owned and operated, RPI combines print production with structural packaging design, fulfillment, and web-based ordering programs for businesses from regional firms to Fortune 500 brands. Its G7 Master Qualified color-management facility and Green Growth sustainability program reflect a company that has kept its early focus on color while expanding into modern production.
Since 1967, third-generation family-owned RPM Carbide Die has precision-ground, machined, and finished close-tolerance tooling in Arcadia, Ohio. Its 30,000-square-foot facility handles complex tooling projects from design through production, serving demanding industrial customers with ISO 9001:2015-certified quality systems.
Incorporated in 1985, RPM Industries LLC is a Washington, Pennsylvania manufacturer with more than 25 years of experience developing maintenance systems for heavy equipment. Its USA-made engine prelube and fluid evacuation equipment serves operators of heavy-duty diesel machinery across construction, mining, transportation and power generation, with installation and training available for customers.