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PA
Family-owned and operated since 1950, Petersen Precision Metals is a Pittsburgh-area machine shop known for custom work and repair across the tri-state region. Its experienced machinists bring more than 75 years of combined expertise to projects for industrial customers, working from a 12,500-square-foot facility.
Peterson Cartridge is a family-owned Pittsburgh-area manufacturer of American-made, match-grade brass rifle casings built specifically for long-distance shooters. Founded by Derek Peterson and two partners after a search for hard-to-find hunting ammunition, the company now makes brass in more than 70 calibers and inspects every casing before it leaves the factory. Its small-batch approach and detailed dimensional and ballistic testing are aimed at giving reloaders consistent performance shot after shot.
Founded in 1984, Peterson Farms is a Shelby, Michigan fruit processor whose growth has been shaped by a straightforward focus on food safety and reliability. The company operates five SQF-certified facilities totaling more than 2 million square feet and works with customers across foodservice, schools, healthcare and retail to develop fruit products to their specifications.
With more than 50 years of experience, PETREX is a Warren, Pennsylvania manufacturer and installer serving the petroleum and petrochemical industries. The company is known for full-contact systems that help limit evaporative loss and hydrocarbon emissions from storage and treatment tanks.
513210
PetWise develops pet products across a portfolio of brands, from cat toys and scratchers to dog beds, treats and travel carriers. With 30 years of pet-industry expertise, the company emphasizes needs-based design, child-safety standards and a 100% money-back guarantee. PetWise also incorporates certified organic, recycled and renewable materials into its products, including catnip grown on its own internationally certified farms.
Since 1970, Atlanta-based Pexco has grown into a multi-plant manufacturer of specialty plastic components, combining custom extrusion with precision injection molding and machining. Its particular strength is working with demanding high-performance polymers, using in-house engineering, tooling and industrial CT scanning to make complex parts for applications ranging from medical devices and semiconductors to aerospace and traffic infrastructure. Pexco employs roughly 500 people across facilities in the United States and Mexico and operates under ISO 9001 quality systems.
Pexco has been in existence in some form since 1970 and has grown from a plastics business into a North American manufacturer with roughly 500 employees and plants across the United States, Mexico, and Canada. Based north of Atlanta, it is known for solving difficult polymer applications for industrial and commercial customers, particularly where purity, precision, or resistance to heat and chemicals matters. Its work includes custom plastic extrusion and high-performance polymer molding for sectors such as medical devices, aerospace, and semiconductor equipment.
Rooted in a York County, Pennsylvania pottery shop established by the Pfaltzgraff family, Pfaltzgraff designs and markets ceramic dinnerware and other tabletop goods for American homes. The company traces its history back over 200 years, from simple earthenware and salt-glazed crocks to enduring patterns such as Yorktowne, Winterberry, Villa della Luna and Trellis. Pfaltzgraff has been part of Lifetime Brands since 2005.
Built from three Mohnton-area companies with roots reaching back to 1946, PFI Advanced Equipment Manufacturing makes custom rigid-foam, plastic, and metal components through precision machining and fabrication. The small Berks County shop is especially known for cryogenic foam corks and plugs, manufacturing more than half of those used in the United States, while serving customers internationally. PFI is recertified to ISO 9001:2015 and AS9100D standards and focuses on single-part and short-run work as well as custom projects.
Pfizer Inc. is a biopharmaceutical company that discovers, develops, manufactures, and markets medicines and vaccines. The company operates multiple manufacturing sites in the U.S. and globally, producing active pharmaceutical ingredients, drug products, and medical devices, and serves healthcare markets worldwide.
Founded in 1992 and built through the combination of Pegas Nonwovens and First Quality Nonwovens, PFNonwovens manufactures ultra-lightweight spunmelt nonwoven fabrics for hygiene, healthcare, and industrial applications. The company now operates 20 production lines across five factories in four countries, with more than 1,000 employees and products sold in over 40 countries. Its long-standing specialty is tailoring bonding patterns and newer 3D embossing and aperturing to give nonwovens specific softness, breathability, and fluid-handling performance.
PGRrx is a 503B pharmaceutical outsourcing facility that produces sterile and non-sterile compounded medicines to help healthcare providers navigate drug shortages and tailor dosage forms to patient needs. Founded by pharmacist Amit Gupta, the company also supports CMC and clinical-trial research, drawing on his experience leading sterile and non-sterile compounding in inpatient institutions. Its work is organized around supplying safe, personalized pharmaceutical access to communities facing gaps in availability.
Founded by Phil Herman Sr. in 1973, PH Tool Reference Standards manufactures custom nondestructive-testing reference standards and calibration test blocks in Pipersville, Pennsylvania. Its in-house operation includes 40 purpose-built sinker EDM machines and 15 CNC mills, allowing the company to produce everything from fine EDM notches to standards weighing more than five tons. PH Tool also recertifies standards made by other manufacturers and maintains ISO 9001:2015 certification with NIST-traceable inspection.
Established in 2018 by engineers from mechatronics, mechanical engineering and related disciplines, Phantom Robotix develops custom automation and robotics solutions for challenging operational problems. The McKees Rocks company combines artificial intelligence, computer vision and autonomy with hands-on engineering to help clients improve safety and operations. Its work spans collaborations with industrial, transportation and university partners.
PharmaBlock (USA), Inc. develops and manufactures active pharmaceutical ingredients and related materials for biotech and pharmaceutical companies, taking projects from synthetic route scouting through process development and GMP production. Its Pennsylvania operation combines process R&D and FDA-registered GMP API manufacturing in West Chester with additional chemistry R&D and laboratory space in Hatfield. The West Chester site occupies a four-acre campus with 30,000 square feet of building space, while the company’s quality system has been ISO 9001 certified since 2019.
PharmaBlock provides chemistry products and services throughout pharmaceutical research and development and commercial manufacturing. Its offerings include novel building blocks, chemistry research, drug substance and drug product CDMO services, and low-carbon chemistry technologies, with sites in the United States, China, and Switzerland.
Founded by Edwin R. Thompson in 1994, privately held PMRS develops and contract-manufactures pharmaceutical products from clinical supply through commercial production, with analytical and quality support under one roof. The Horsham company has grown from six employees to about 30 and has completed more than 550 projects, supporting four NDA-approved commercial products, an internationally approved product, and developmental drugs. Its 130,000-square-foot custom facility and hands-on, cross-functional staff reflect a model in which every team member is involved in each project.
PharmaLogic grew from a network of radiopharmacies in secondary and tertiary markets into a globally integrated radiopharmaceutical company serving sponsors and patients worldwide. Its infrastructure supports the development and commercialization of diagnostic and therapeutic radiopharmaceuticals, with operations spanning 17 manufacturing sites and distribution to more than 30 countries.
Pharmaloz Manufacturing is a Lebanon, Pennsylvania contract manufacturer devoted exclusively to lozenges, developing and producing them under one roof from formulation through finished packaging. The company has made lozenges since 1985 and operates a 60,000-plus-square-foot climate-controlled facility built around pharmaceutical-grade production. Under private family ownership since January 2025, Pharmaloz invested $10 million in new cooking infrastructure and robotic packaging automation.