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PA
Founded in 1974 by Larry D. Proper in a two-stall garage, PROper Cutter reconditions industrial cutting tools through CNC and manual tool-and-cutter grinding in Guys Mills, Pennsylvania. Now in its second generation of ownership, the company operates from a 5,500-square-foot facility and also supplies made-in-USA cutting tools and PVD coatings. PROper Cutter marked its 50th anniversary in 2024 and serves customers locally and across Ohio, Pennsylvania, and New York.
ProRx Pharma is an Exton, Pennsylvania, FDA-registered 503B outsourcing facility that compounds sterile and non-sterile preparations for healthcare providers, with a particular focus on preventative care and medications affected by shortages. Its 6,888-square-foot pharmaceutical and manufacturing facility uses ISO-classified cleanrooms, automation and robotics, while the company’s pharmaceutical and healthcare team brings more than 70 years of cumulative industry experience. ProRx also holds a DEA Controlled Substance Registration Certificate and supports providers with independently tested preparations and extended Beyond-Use Dates.
Since 1993, Brockway-based Proshort Stamping Services has built prototype and short-run metal parts, with custom laser and water-jet fabrication at the center of its work. Its 22,000-square-foot Western Pennsylvania facility is organized for rapid-turnaround quantities from 1 to 50,000 pieces, combining experienced tool-and-die makers and machinists with in-house forming and finishing. Proshort also emphasizes first-piece and final inspection to keep parts to the customer’s print specifications.
Prospect Anchor & Tool is a small Pennsylvania manufacturer of precision-engineered stainless-steel undercut anchors and the tools used to install them in concrete. Built on hands-on construction experience, the company sells directly to contractors and manufactures its anchors in the USA using USA-melt steel. Its PAT undercut anchor carries ICC-ES evaluation ESR-5279 and has supported infrastructure projects including Pittsburgh’s Armstrong Tunnel.
Established in 2025, Prosperity Eco-Packaging Corp. supplies molded-fiber packaging from the United States, including egg packaging and trays for fresh produce, industrial, and medical applications. The company draws on its Turkish parent Güneş Pulp Moulded Packaging Inc., founded in 2004, whose 27,000-square-meter facility employs more than 100 people and produces over 1.5 million trays daily. Prosperity’s integrated production model includes in-house machinery and mold design, enabling customized packaging made from recycled paper pulp and renewable fibers.
Protecall, based in Scott Township, Pennsylvania, protects and restores commercial HVAC equipment with corrosion-resistant coatings applied at its coating centers or directly in the field. Its specialty is extending the working life of aging air-handling units, cooling towers and related equipment, often providing restoration at a fraction of replacement cost while also supporting HVAC optimization and indoor-air-quality projects. The company operates nationally through coating centers in Pennsylvania, Florida, Texas and California and is part of Nationwide Cooling Group LLC.
Founded by Basil Tuller in 1938, Protektor Model makes leather sandbag rifle and pistol rests in Galeton, Pennsylvania. Its top-grain cowhide shooting bags are made in the USA and have become a familiar choice from hunters to benchrest competitors, with the company noting that numerous IBS world records have been shot using its bags. The company also produces benchrest equipment and related shooting accessories designed for long service.
Founded by Timothy Biery in Pittsburgh more than 25 years ago, ProThermal Inc. supplies and engineers heat-transfer equipment for industrial process applications. The company has grown from a manufacturer’s representative into a full-service resource that helps customers select equipment, then supports it with parts, maintenance, repair and performance evaluation. Its team is led by Timothy Biery and vice president Jonathon Biery.
Founded in 2005 by roboticist Dimitrios Apostolopoulos, Pittsburgh’s ProtoInnovations develops modular autonomous robotics for extreme environments on Earth, the Moon and Mars. Its work spans flight-supported mobility software, planetary rovers, robotic wheels and tools, with NASA’s VIPER lunar rover among the missions supported by its autonomy and control technology. More than two decades of systems engineering and field testing underpin the company’s focus on safe, efficient operation in difficult terrain.
Founded in April 2012, ProtoKinetics is a team of engineers and biomechanists focused on making gait and balance assessment more useful in clinical care and research. Its technology helps clinicians and researchers collect objective movement data to evaluate interventions and track mobility, while the company provides university-level guidance on implementation.
Founded in 1987, Prototek Digital Manufacturing is a privately held company owned by TruArc Partners, with about 300 employees and facilities across the United States. It is known for carrying projects from prototype through production, supporting customers from startups to S&P 500 companies with precision parts and assemblies. Prototek’s quality and security credentials include ISO 9001:2015, AS9100D, ITAR registration, and CMMC Level 2 certification.
Founded in 1987, Prototek Digital Manufacturing turns digital designs into prototypes and production parts, supporting the full product lifecycle through digital manufacturing facilities across the United States. With roughly 300 employees, the company handles mid- to high-complexity components in metals and polymers for customers ranging from startups to S&P 500 companies, including work inherited through the integration of ProtoCAM. Prototek’s quality and security credentials include ISO 9001:2015, AS9100D, ITAR registration, and CMMC Level 2 certification.
Provepharm is a pharmaceutical company specializing in ready-to-use medical dyes that help clinicians visualize tissues and improve detection during hospital procedures. Building on more than 25 years of expertise in organic chemistry and formulation, the company develops medicines and medical devices while working directly with hospital pharmacists and surgical teams. Its products reach healthcare professionals internationally through direct operations and distribution partners.
Provideon Wire & Cable was founded in 2022 by a third-generation Western Pennsylvania wire-industry veteran whose career spans more than 30 years. Based in Washington, Pennsylvania, the company draws on more than 350 years of combined team experience to make and distribute low-voltage cable for commercial and institutional projects, including schools and performing arts venues.
ProWood manufactures and treats lumber, with pressure-treated lumber as its central offering for professional building projects. Its company information describes lumber made for builders, while its facility network produces and supplies a broader range of wood building materials.
Founded in 2000 near Pittsburgh, Proxicast, LLC designs and manufactures professional-grade wireless data communications equipment for remote monitoring and data collection. Its antennas, cables, cellular and Wi‑Fi equipment support applications ranging from industrial automation and transit to banking and security, with products deployed by organizations around the world. Proxicast is a privately held company with a US-based technical support team.
339999
The nonprofit PRR T1 Steam Locomotive Trust is building Pennsylvania Railroad T1 No. 5550, a new example of the iconic 4-4-4-4 duplex steam locomotive class whose 52 original engines were all scrapped. Driven by volunteers, engineers, and supporters around the world, the Trust is recreating the art deco locomotive for mainline excursion service and plans to pursue a steam-locomotive speed record. The project also uses modern engineering and alternative-fuel research to explore how steam can remain part of railroad heritage.
Founded in Pittsburgh in 1924, Pruett-Schaffer Chemical Co. manufactures paints and industrial coatings for demanding environments, including railcar and infrastructure applications. The company pairs a century of coatings experience with custom formulation and toll production, and has built a particular record in low- and zero-VOC products designed to protect substrates for more than ten years.