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MD
Roma Gourmet Sausage has made premium sausage since 1963 and moved its operation to its current East Baltimore location in 2008. The company produces hand-crafted sausage and meatballs, emphasizing hand-trimmed meat and small-batch production. Its mission includes both production and distribution of its sausage products.
Root3 Labs is an Owings Mills engineering R&D firm that develops hardware for device manufacturers, taking ideas from strategic discovery through mechanical, electrical and embedded design and into working prototypes. Its engineers are drawn to unsolved problems and use a first-principles, risk-first process, with a 7,500-square-foot facility and an in-house prototyping workshop that helps compress development from months to weeks. The team’s work spans high-stakes medical, aerospace and defense projects, supported by ITAR registration, CMMC Level 2 compliance and Maryland professional engineering licensure.
What began as Ed and Rosemary Burchell’s retirement farm in Monkton in 1986 became Roseda Black Angus Farm in 1996, raising local Black Angus cattle and producing all-natural, dry-aged beef. On 350 acres with about 600 head of cattle, the family-run operation tracks its animals from birth through processing, using selected genetics and a 14-to-21-day dry-aging process. Roseda also works with 45 local farm partners and powers its farm and store with solar energy.
Roshni Foods is a U.S. Indian grocery company that sources and offers ingredients and pantry foods centered on traditional Indian cooking. Its selection includes aromatic spices and convenient frozen foods, with an emphasis on carefully sourced products and quality standards.
Founded by Thomas Ross Sr. in September 1986, Ross Machine Company is a Maryland precision CNC machining contract manufacturer producing complex parts for defense, industrial, and manufacturing customers. The privately owned company handles both short and long production runs, with prototyping capabilities and an in-house machining operation that includes vertical, horizontal, and five-axis CNC mills. Ross Machine is certified to AS9100D and ISO 9001:2015.
Rou Organics turns wild-harvested African seeds and fruits into cold-pressed botanical oils, combining tribal harvesting knowledge with modern processing at its solar-powered facility in Modimole, Limpopo. The company sources from communities around more than 50 villages, with every bag tracked from its harvesting location to the plant and local harvesters equitably paid. Its fresh-fruit approach also puts byproducts to work rather than sending them to waste.
Established in Baltimore City more than 15 years ago, Rowen Concrete produces ready-mix concrete for projects throughout the city and surrounding areas. The company stands out for its in-house testing laboratory, which lets its team develop mix designs and monitor their performance continuously, including for technically demanding work such as underwater pier repairs. Rowen is certified as both an MDOT MBE/DBE and Baltimore City WBE business.
From its Lappeenranta base, Roxia Oy designs and supplies industrial filtration technology for mineral processing and wastewater-treatment applications. The company is the current Finnish family-business continuation of an industrial story that began with Nuutti Vartiainen in the 1960s, passed through Roxon, Larox and Flowrox, and became Roxia in 2021. Today it focuses on filtration equipment and the testing, service and process support that keep solid-liquid separation running through the equipment lifecycle.
Established in 2005 at Hagerstown Regional Airport, Royal Aircraft is an FAA-certified repair station specializing in maintenance, structural repair, and custom paint for turboprop and piston aircraft under 12,500 pounds. Its family-style operation puts customers in direct contact with the technicians, while a leadership team with 75 years of combined aviation experience handles everything from routine inspections to complex damage repairs and refinishing. Royal serves aircraft owners, flight schools, and Part 135 operators throughout the Mid-Atlantic.
Founded in 2013, Royal Can Making Company (RCMC) manufactures two-piece aluminum beverage cans and can ends in Iraq, becoming the first producer of these products in the Kurdistan Region. Its Sulaymaniyah and Baghdad factories serve customers across the region, while in-house printing and technical support extend the company’s role beyond can production. RCMC’s operations are certified to FSSC 22000, ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018 standards.
Founded by former Air Force servicemember Brian Keesee in 1996, Royal Jester Apparel is a Waldorf-based custom apparel and awards shop serving Southern Maryland and the Washington, D.C., area. The business grew from Crown Trophy of Waldorf into custom-decorated apparel after acquiring a screen-printing and embroidery company with more than 35 years of local history, while retaining its awards and promotional-products work. Today, its 5,400-square-foot showroom and in-house wide-format printing operation support apparel, recognition pieces, and branded items for organizations of all sizes.
RPM Tech grew from a Harford County basement startup founded in 2006 into a product development company with more than 20 full-time employees. Based in Forest Hill, Maryland, the company helps startups and large corporations turn new ideas into manufacturable products, with engineering and prototype work carried out under one roof. Its 10,000-square-foot facility supports projects from early concepts through production transition.
R.R. Donnelley & Sons Company, known as RRD, is a global provider of marketing, packaging, print, and business services, with more than 160 years in business. It operates more than 175 locations in 30 countries and serves brands including 92% of the Fortune 100. Its work includes commercial printing and integrated packaging production alongside customer communications and marketing services.
RTX Corporation is an $80 billion global aerospace and defense company built around three businesses: Collins Aerospace, Pratt & Whitney and Raytheon. It develops technologies that help people fly safely and support national security, while its research organization has collaborated with universities, national laboratories and small businesses for more than 95 years.
RTX is an aerospace and defense company that designs, manufactures and supports technologies for flight and national security through Collins Aerospace, Pratt & Whitney and Raytheon. Its businesses make aircraft engines and auxiliary power units, as well as integrated aerospace and defense systems; RTX also describes work in advanced materials, propulsion and manufacturing technologies.
Rugged Science is a U.S. manufacturer based in Sparks, Maryland, known for keeping the engineering and production of mission-critical computing systems under one roof. It serves defense and industrial customers with rugged computers designed for demanding environments, backed by an ISO 9001:2015 and AS9100D-certified quality system and a CMMI Maturity Level 3 appraisal.
Founded in 1921 after sea captain Robert Fergusson observed that fish oil prevented rust on his ship’s metal deck, Rust-Oleum Corporation grew from an early rust-preventive paint maker into a global manufacturer of coatings. The company makes products for do-it-yourselfers and professionals, including industrial floor coatings and spray paints, and has expanded into cleaners, primers, automotive and wood-care products.
RW Connection supplies industrial hose, conveyor belting, gaskets and MRO equipment while fabricating, testing and servicing the components that keep plants running. Its seven stocking and fabricating branches across Pennsylvania, New Jersey and Maryland support customers with local inventory and field crews, backed by access to Singer Industrial’s broader network. The company’s capabilities include hoses crimped up to 10 inches in diameter, 60,000-psi waterjet cutting and conveyor work performed by crews with more than 200 years of combined experience.
Rx Biosciences LLC is a biotechnology contract research provider offering surface display, antibody discovery, genomic and cDNA library construction, gene cloning, protein purification, cell-line generation, assay development, and related molecular biology services. Its work supports pharmaceutical, biotechnology, therapeutic, diagnostic, and research applications.
Founded in 1903 by S.E.W. Friel, this four-generation, family-run Maryland company produces canned corn for private-label customers in domestic and international markets. Its Eastern Shore facility has evolved through modernization into a highly automated canning operation, with products grown and produced in the USA. Friel operates with SQF Level 3 certification and USDA in-house inspection.