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PA
Founded in Camp Hill, Pennsylvania, in 1971, Envirodyne Systems Inc. custom-designs and manufactures water and wastewater treatment equipment for municipal and industrial applications. Its design team is known for adapting equipment to unusual project requirements, with offerings that include clarifiers and trickling-filter rotary distributors. The company also serves industrial and mining operations with specialized treatment systems.
Founded in Camp Hill, Pennsylvania, in 1971, Envirodyne Systems Inc. custom designs and manufactures water and wastewater treatment equipment for municipal and industrial applications. Its design team develops tailored equipment packages for unusual treatment challenges, backed by a broad range of systems including clarifiers, digesters, and screening equipment. The company emphasizes responsive service and practical designs that can be adapted to the needs of individual projects.
Founded in 2011, Hicksville, Ohio-based EnviroKure develops and produces naturally derived biostimulants and organic biofertilizers made from chicken manure. The company grew from a garage project into the only company it identifies as having patented and commercialized this chicken-manure-derived technology, with a flagship facility designed to serve as many as 4 million acres. Its products are intended to improve soil health, plant resilience, and productivity for conventional and organic farmers.
Founded in 1990 by catalytic reaction engineering expert Dr. Robert Becker, Malvern-based Environex provides independent engineering, consulting, and laboratory services for catalytic emissions control systems. Its team of chemical engineers, scientists, and laboratory technicians brings more than 140 years of combined experience to SCR and CO catalyst performance, while also developing customized ozone-destruction catalysts for applications such as cabin air and indoor air quality. Unlike a catalyst supplier, Environex does not sell catalyst products, allowing its recommendations to focus on system performance and long-term operating needs.
Founded in 1972, Easton-based Environmental Concern Inc. is a nonprofit wetland restoration organization that designs and builds living shorelines, restores wetlands and grows native plants for Chesapeake Bay projects. Its restoration division has helped restore more than 50 miles of shoreline, while its nursery—identified as the nation’s first wholesale wetland plant nursery—propagates more than 100 native species from locally collected seed. The organization also provides wetland education and professional training from the perspective of practitioners doing the work.
For more than 30 years, Environmentally Safe Products, Inc. has manufactured reflective insulation designed to reduce radiant heat transfer in homes and buildings. Based in Pennsylvania, the company makes all of its products in the United States and ships them nationwide and around the world. Its Low-E line includes building-envelope solutions such as ThermaSheet® roofing underlayment, backed by a 30-year warranty.
Envision Outdoor Living Products is a manufacturer of low-maintenance composite decking, railing systems, and related outdoor living products. The company is known for its marine-grade composite decking, Cool Tread technology, and a wide range of railing options in aluminum, vinyl, composite, and steel. Envision products have been featured on popular home improvement shows and have earned recognition such as being named a Top Rated Composite Decking by Consumer Reports for 2026.
Envoy Lighting is a Pennsylvania-based commercial and industrial lighting company whose team brings more than 100 years of combined experience in lighting design, applications, and marketing. It serves projects through a broad LED fixture line, including specification-grade products made in the USA, supported by manufacturing partnerships in the United States and Asia.
Founded in 1953 with papain as its first product, Enzyme Development Corporation develops, manufactures, and formulates enzymes for food and related processing applications. From its Scranton factory, EDC is the only producer of papain in the western hemisphere, making standardized powders and liquids alongside custom blending, packaging, and technical application support. The company serves customers ranging from a few kilograms to multiple truckloads and has supplied the food industry for more than 70 years.
Founded in 2008, Eos Energy Enterprises develops and manufactures zinc-based battery energy storage products in the United States. Its Eos Znyth aqueous zinc technology powers storage systems for utility, industrial, and commercial customers, with production at Eos Ingenuity Park in Pennsylvania.
Established in 1968, Philadelphia-based Engineered Plastics Company (EPC) makes custom injection-molded plastic parts, taking projects from mold design through production and delivery. Its experience includes thousands of injection molds, while a 24-hour, three-shift operation with machines ranging from 50 to 500 tons supports both small and large production runs. EPC also maintains its own tooling and can tailor quality-control methods to customer requirements, serving approved customers including Honeywell, Rockwell International and Ingersoll Rand.
From Pittsburgh, 412-EPC helps turn engineering ideas into manufacturable products as an engineering and business consultancy with manufacturing and supply-chain expertise. Founded by engineering and manufacturing consultant Thorin Tobiassen, the firm supports projects ranging from rapid prototypes to production planning, with particular experience redesigning parts and assemblies for conventional and additive manufacturing. It also helps smaller businesses build in-house capability through targeted training, software guidance, and equipment selection.
Established in 1968, Philadelphia’s Engineered Plastics Company (EPC) designs tooling and produces custom injection-molded plastic parts, with production running around the clock. Its in-house path from mold design and prototyping through quality control and finishing lets EPC handle complicated designs and both small and large production runs under one roof. The company’s parts are made in the USA, and EPC is an approved vendor for manufacturers including Honeywell, Rockwell International, and Ingersoll Rand.
Founded in 2010, EPC Power designs and manufactures power-conversion systems in the United States, with manufacturing facilities in Poway, California, and Greenville, South Carolina. Its inverters and related platforms serve grid-scale energy applications and data centers; the company reports more than 15 GW deployed across 62 countries and combined annual production capacity exceeding 40 GW.
Founded in 1986 as Electronic Prototype Development, EPD Electronics grew from a prototyping company into a Natrona Heights manufacturer of electro-mechanical products and printed circuit board assemblies. It provides design-through-production manufacturing, drawing on more than 35 years of experience and in-house engineering and production capabilities serving regional and national customers.
Family-owned Ephrata Precision Parts has been a Lancaster County job shop since 1972, building its reputation around custom work made to each customer’s specifications. From its 56,000-square-foot Pennsylvania facility, the company serves manufacturers across North America with precision-machined parts and molded polyurethane components, handling both prototypes and production orders.
From its Pennsylvania and New Jersey plants, EPI Labelers engineers, manufactures, and installs pressure-sensitive labeling systems and applicators for packaging lines. Its equipment ranges from standalone applicators to custom integrated systems, including solutions built for flexible packaging and demanding cold, wet, or dusty environments. EPI is a ProMach product brand and supports its installations through North American service coverage, including PMMI Certified Trainer Program technicians.
Founded in 2016 by two brothers in a small Pakistani workshop, Epic Craftings manufactures wholesale signage for designers, agencies, and retailers, pairing local handcrafting with modern production. The company has grown to more than 440 workers, 110,000 square feet of combined workshop space, and a Philadelphia-based partnership that supports its U.S. market. Epic Craftings reports more than 250,000 completed signs and serves customers in over 50 countries.
EPIC Metals Corporation engineers and manufactures structural steel roof and floor deck ceiling systems, with a focus on architectural spans and acoustic performance. The company says it has been innovating since 1968 and that its systems have been used in landmark buildings across the United States for more than 50 years.
Founded in 2009 around an efficient solar distillation unit, Pittsburgh-based Epiphany Environmental develops modular water-purification systems for industrial wastewater, with a particular focus on treating high-salinity produced water close to where it is generated. Its compact, portable equipment is designed to reduce hauling and disposal by enabling on-site treatment and reuse, and has been piloted with organizations including the Colorado Department of Transportation and energy producers in the Marcellus and Denver Julesburg basins. The company also serves food and dairy operations, including a cheese plant installation designed to process roughly 10,000 gallons of brine per day.