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PA
Family paintmakers for five generations, Old Village Paint traces its roots to C. Schrack & Co., founded in Philadelphia in 1816. The company preserves that heritage by producing authentic period colors in traditional batches with natural earth pigments, serving restoration specialists, decorative painters, and homeowners seeking historically grounded finishes.
Oldcastle APG is a North American manufacturer of architectural building products and outdoor living materials, operating a network of more than 200 locations. A CRH company, it brings together brands serving outdoor projects in residential and commercial spaces, with products ranging from hardscape materials to fencing and pool finishes. The company also provides design tools and support for planning outdoor spaces.
Oldcastle BuildingEnvelope is a North American vertically integrated manufacturer, fabricator, and distributor of architectural glass, glazing systems, hardware, and supplies. With more than 80 locations across the United States and Canada, it partners with glaziers, contractors, architects, and building owners, providing integrated building-envelope products and design assistance.
Founded in 2011 after Lancaster County electrician Bill Eichorst set out to make the period fixture he could not find, Olde Brick Lighting crafts historic-inspired lighting in its Lancaster County, Pennsylvania shop. The small-batch, bench-made fixtures draw on century-old molds and traditional forms while adapting them for modern spaces, with handblown glass and solid brass details made in the United States. Each piece is built to order, including custom fixtures developed with design professionals.
Olde York Homes grew from founder Gary Geiselman’s restoration of a neglected Federal-period townhouse into a York, Pennsylvania design-build company specializing in the restoration and renovation of historic and distinctive homes. Formed in 1981, it renovated more than 30 homes in York’s downtown historic district during its first decade and now works on structures ranging from the 18th century to new construction. Its custom shop grew from a need for locally unavailable millwork and now produces cabinetry and architectural details suited to each home’s period.
Olfactory NYC turns perfume-making into a hands-on experience, guiding customers through core fragrances and accords to create a custom scent that is freshly blended and bottled for them. Its scent advisors help guests name and label their creations, which can later be reordered or carried into body and home products. The company offers both studio sessions across 10 locations and at-home kits for exploring and refining a personal fragrance.
Founded as a machinery company in 1890, Oliver Healthcare Packaging became focused on medical packaging in 1968 and now builds its identity around protecting patients. The company designs and manufactures flexible sterile barrier packaging for healthcare customers, with engineering support available through its international network of technical centers.
Founded from Chris and Hannah Sprague’s shared love of thoughtful gifts, Olivet Designs creates custom laser-engraved gifts and promotional pieces in Upper Chichester, Pennsylvania. The couple purchased an existing engraving business in 2019 and have since expanded its offerings, with Chris overseeing production and Hannah leading design. Olivet also supports local music and theater programs through fundraising opportunities.
Olson Industries designs and builds industrial furnace systems and thermal-processing equipment, with more than 64 years of continuous service stated on its heat-treating page. Based in Burgettstown, Pennsylvania, the company also fabricates and assembles furnace projects and provides modernization and repair work. Nutec Bickley announced its acquisition of key Olson Industries assets.
Founded in 1999, Olympia Chimney and Venting manufactures chimney venting systems, liners, and accessories, with headquarters in Scranton, Pennsylvania. The company acquired Copperfield Chimney Supply in 2019, combining its manufacturing business with a chimney-supply distributor founded in 1978.
Founded by Arnold Davis in 1988, Olympia Steel Buildings designs and manufactures American-made steel building kits for projects ranging from personal garages to commercial facilities. The family-owned company owns its manufacturing facility, delivers nationwide, and provides precision-cut components for contractor-led or do-it-yourself assembly. Its welding work meets American Welding Standards, and Olympia is also an Energy Star Manufacturer.
Founded in 1992 by two health-conscious athletes, Olympian Labs makes science-backed dietary supplements from its Phoenix, Arizona base. Its formulas are produced in the USA in GMP-certified facilities and emphasize clean-label ingredients, clinical dosing, and transparent sourcing, with more than 275 formulas developed over three decades.
Serving aerospace customers since 1960, Olympic Tool & Machine Corp. is a 100-employee machine shop in Aston, Pennsylvania, known for producing fully traceable flight-safety parts and assemblies. Its 65,000-square-foot facility supports customers from prototype work through completed machined parts, with nondestructive testing performed on-site since 1985. The company’s long record includes Boeing supplier recognition and AS9100 certification.
For more than 100 years, Olympus has built its identity around medical technology and the goal of making people’s lives healthier, safer, and more fulfilling. Olympus Corporation of the Americas is the wholly owned American subsidiary of Tokyo-based Olympus Corporation, employing more than 5,200 people across North and South America while supporting healthcare professionals with technologies for detecting and treating disease.
Founded in 2020, OM Digital Solutions Corporation develops and manufactures precision imaging and audio equipment while also applying its optical production technology to corporate solutions and contract electronics manufacturing. Its product-making lineage reaches back to Olympus’s first camera in 1936, with a distinctive focus on optical design, compact and lightweight equipment, and dependable field use. The company operates globally and is building on roughly 80 years of optical and precision-technology history in Okaya, Japan, through its new manufacturing site there.
Founded in 1969 in a shed behind its founder’s Pennsylvania home, Omega Design Corporation builds container-handling and packaging automation for pharmaceutical, nutraceutical, and consumer healthcare manufacturers. The Exton company has implemented more than 3,000 solutions for over 25,000 unique containers, with installations and service reaching more than 50 countries. Omega also supports its equipment after installation through technical service, parts, training, and validation assistance.
OMEGA Machine Works - USA is a Pennsylvania-based supplier serving North American manufacturers and fabricators, with a service team whose staff brings more than 40 years of metalworking and cutting-industry experience. The company supports customers with press brake solutions and responsive service for fabrication operations.
Omega Medical Systems brings compression therapy for lymphatic and venous disorders into patients’ homes, supplying pneumatic compression pumps and garments alongside negative-pressure wound systems. Based in Pottstown, the company handles insurance qualification and billing, personally installs equipment, and follows up with patients while an RN and WOCN support the care team. Its stated mission is to help people manage swelling and wounds while continuing to live their daily lives.
Established in 2001, Omega Piezo Technologies manufactures piezoelectric components and transducers alongside crystal scintillators and alumina ceramics. From its State College headquarters, the company supports customers with materials expertise, precision machining, testing and custom device development, supplying volumes from a few hundred to more than 1 million pieces per year. Omega operates across the United States, Lithuania and China, with a technical staff that includes two PhD-level engineers with more than 60 years of combined piezo-industry experience.
Since 1975, OmegaFlex has built its identity around engineering flexible metal piping for demanding industrial applications. The Exton manufacturer is known for qualifying its designs to ISO 10380 and for maintaining an in-house metallurgical laboratory to investigate materials and product performance. Its work supports specialized users such as chemical and petrochemical plants, power facilities, and manufacturers handling challenging process conditions.