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PA
Founded in 2011 by a veteran-owned team in Clearfield, Pennsylvania, Clearfield Metal Technologies makes highly engineered custom sintered powder-metal and metal-injection-molded components and assemblies. The company works with tailored material compositions for demanding applications and supports its production with dedicated quality and materials laboratories. Clearfield is ISO 9001:2015 certified by NSF-ISR.
Cleargress Doors makes basement-access products in Pennsylvania, with its cellar doors manufactured at Hampton Concrete in Valencia. The company serves residential and commercial projects, offering standard and custom options and local installation, while shipping products to customers across the United States.
Since 2007, Clearly Clean Products has developed and manufactured recyclable PET food packaging, best known for its patented Roll Over-Wrap™ Tray. Made in the USA, the Frackville-based company engineered the tray’s rolled edge to run on high-speed processing equipment while reducing film tears and material use. Its packaging innovation has earned both an AmeriStar Award and a DuPont Packaging Award, and the company operates manufacturing sites in Pennsylvania and North Carolina.
Since 1975, Cleaveland/Price Inc. has designed and manufactured switching and automation equipment for the medium- and high-voltage electrical industry. Its roots in supplying renewal parts for discontinued Westinghouse switches led to a broader line of group-operated switches rated up to 345 kV, along with automation controllers and power-monitoring equipment. The company’s ongoing research and development includes its “Quick Install” transmission switches, which arrive fully assembled and adjusted to simplify field installation, and its vertically integrated facility uses extensive CNC manufacturing capabilities.
Founded in 1895 by John C. Clemens, Clemens Food Group is a sixth-generation, family-owned pork producer headquartered in Hatfield, Pennsylvania. It coordinates hog farming, pork processing, and transportation, and operates processing facilities in Pennsylvania and Michigan. Its brands include Hatfield, Kunzler, and Farm Promise.
Founded in 2021 by Afghanistan war veteran and Pennsylvania Army National Guard combat medic Matt Zechman, Cleona Coffee Roasters produces fresh, small-batch coffee in Annville, Pennsylvania. The roastery sources coffees to showcase their natural character and packages them in-house, while custom-labeled coffee and fundraiser blends turn its products into tools for local connection. Cleona says it has reinvested tens of thousands of dollars through support for local causes, first responders, and service organizations.
Since 1948, Cleveland Brothers Equipment Co., Inc. has grown into a regional Cat dealer serving customers across Pennsylvania, northern West Virginia and western Maryland. It is known for pairing equipment expertise with the practical support that keeps construction, mining, forestry and agricultural operations moving, including through its specialized CB HYMAC division. The company now serves its territory through 30 locations.
Founded in 1963, Cleveland Steel Container Corporation makes steel pails and one-gallon tin cans, with a focus kept squarely on steel packaging for more than six decades. The Hudson-based company is employee-owned and operates four standardized pail plants supported by an in-house Technical Center that develops its machinery and pail innovations, including the Triplex® design. Its plants are ISO 9001:2015 certified, and its steel pails and cans are sold across North America and shipped worldwide.
Founded in 1847, Cleveland-Cliffs is a North America-based, vertically integrated steel producer with operations across the United States and Canada. It mines iron ore and makes steel, then carries out downstream finishing, stamping, tooling, and tubing; its products include value-added sheet steel supplied particularly to the automotive industry. The company reports 60 operating facilities and approximately 25,000 employees as of February 2026.
Founded in 2013, Clifford CNC Tooling Surgeon, LLC is a rapid-response EDM tool room in Adams County, Pennsylvania, making ultra-precision machined parts and custom tooling for government agencies and small and mid-sized businesses. Neil Clifford works directly with clients on tool design, precision machining, and difficult EDM work, including small deep holes and wire-cut features for prototype and production projects. The company serves customers across the Mid-Atlantic and Northeast and is proudly made in the USA.
Founded in 2001, Climatic Testing Systems, Inc. is a Hatfield, Pennsylvania technology company known for applying deep refrigeration and controls expertise to custom test facilities. Its team brings more than 100 years of combined experience to environmental testing projects for automotive, HVAC and pharmaceutical customers, providing support from design through commissioning and maintenance.
For more than three decades, Clinical Intelli-Print has been the specialist print partner behind clinical research studies, serving sponsors, CROs and agencies. The company handles trial materials and their fulfillment, with processes built around the accuracy and deadlines required in a tightly regulated field.
Clinigen Group helps pharmaceutical and biotechnology companies move medicines through clinical development and into patients, combining clinical-trial supply management with managed access and global partnering. With regional teams across North America, Europe, Africa, Japan and Asia Pacific, the company has accelerated access to medicines in more than 130 countries. Clinigen also supplies hard-to-find and unlicensed medicines through its Clinigen Direct platform, drawing on more than 30 years of experience in that work.
Clinimed USA is a fourth-generation, family-owned manufacturer of surgical instruments and medical devices, founded in 1978 and shaped by a family metalsmithing tradition that reaches back to 1916. The company serves as a turnkey OEM partner, combining custom design and development with vertically integrated production and distributing more than 16,000 instruments and devices across 22 surgical specialties. Its facilities are FDA registered and cGMP and ISO 9002:13485 compliant.
Clinton Controls, Inc. is a central Pennsylvania company with 30 years of experience building custom electrical control panels. Its systems serve pumping and water treatment operations, with thousands in use across the United States and abroad; the company also provides field troubleshooting for industrial controls regardless of manufacturer.
Founded in 1979 by Robert C. Bohn, Clinton Industries makes medical and physical therapy furnishings and equipment. It grew from a garage startup focused on more affordable treatment tables into a company operating more than 300,000 square feet of combined manufacturing and warehouse space, with national and international distribution.
Founded in 1995 by Skyline Toolworks, Clipdraw makes low-profile concealed-carry clips and firearm accessories designed as alternatives to traditional holsters. The family-run company produces its Clipdraw products in the United States and has built a customer base among law enforcement, military members, and licensed citizens. Clipdraw also supports American manufacturing through local packaging partnerships and community giving.
Originally released in 2010, Clique Vodka is a vodka brand crafted in Latvia’s Baltic region, where fine wheat and rye, natural spring water, and Russian production standards shape its distinctive profile. The brand is developed and distributed by Premier Innovations Group and became known for its glossy black bottle before a 2021 Reserve Edition redesign paired a triple-column-distilled vodka with a custom glass vessel and apothecary-style cork. Clique is distributed across the United States and in select international markets.
Clockwise is a Pittsburgh custom-apparel company that prints and embroiders garments and ships orders from its Pittsburgh operation. It also provides apparel fulfillment, including inventory storage and shipping for customers’ online stores.
Clopay Corporation manufactures residential and commercial garage doors and industrial rolling steel doors. Founded in 1859 as a Cincinnati paper wholesaler, it entered the garage-door business in 1964 and is headquartered in Mason, Ohio. The company reports operating four U.S. manufacturing facilities and a network of more than 55 distribution centers.