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PA
Born on a 1949 Pennsylvania racetrack, Jenkins Machine Inc. is a family-owned Bethlehem machine shop now in its third generation, producing precision machined parts for demanding customer applications. Walter D. Jenkins founded the company with his wife, Stephania, and the business later helped supply parts for Telstar 1 before moving from conventional work into CNC machining. Today, the Jenkins family continues to run a two-shift operation focused on midrange batches, difficult designs, and close customer collaboration.
Family-owned Jennies has been baking its real-coconut treats since 1960, growing a family recipe into a small-batch bakery. The company is known for keeping its recipes simple while offering both golden baked macaroons and unbaked coconut bites to retailers nationwide.
Founded in 1983, family-owned Jennison Corporation in Carnegie, Pennsylvania, makes precision-machined and stamped components while carrying projects from prototyping and tooling through production. Its 75-person operation includes 18 CNC machining centers and five wire EDM machines, giving the company unusual capacity for a small-business setting. Jennison’s quality program is ISO 9001 and API Spec Q1 compliant, and the company is ITAR registered.
JENNMAR manufactures ground-control and infrastructure products for work above and below ground. Founded in 1922 as a scrap metal company, it has grown into an American company with more than 2,500 domestic employees, over 800 international employees, and facilities and distribution warehouses worldwide. Its manufacturing operations include ground-support products and structural steel fabrication.
Jenny Lee Swirl Bread sells baked goods made by 5 Generation Bakers, a commercial manufacturer of frozen wholesale bakery products founded in June 2009 to continue the Baker family’s baking tradition. The family’s bakery history dates to Michael A. Baker’s Pittsburgh bakery, founded in 1875, and includes Jenny Lee Bakery, established in 1938; the current line grew from cinnamon swirl and cinnamon raisin breads to additional baked products.
With roots in a Pennsylvania valve maker incorporated in 1892, Jenny Products manufactures portable and industrial stationary air compressors in Somerset, Pennsylvania. The company’s history includes inventing the 1927 “Steam Jenny” cleaner, developing early compressor technology through its Davey acquisition, and bringing the Emglo industrial compressor line into its product offering in 2003. Its service-vehicle compressors feature heavy-duty pumps made in Somerset, where Jenny continues to build equipment for construction, rental, and industrial applications.
Founded in 1932 by mechanical engineer Tom Jensen Sr., Jensen Steam Engine Mfg. Co. Inc. remains a three-generation family business in Jeannette, Pennsylvania. The small factory is known for preserving its founder’s original tooling and hand-built methods, producing limited-run miniature steam engines for hobbyists, educators and collectors.
Founded and led by Prof.Eng. Jens Kellner, JENTEQ Technologies is a Pennsylvania engineering company known for applying more than 25 years of international experience to difficult manufacturing problems. Its multidisciplinary work helps industrial clients move from early concepts to production-ready systems, with projects delivered across more than 50 countries.
Since 1971, Jeraco Enterprises has manufactured truck caps and tonneau covers at its facility near Milton, Pennsylvania, with fiberglass and aluminum designs fitted to specific truck models. Founded by Harold Fawcett after earlier work building WagonMaster campers, the company remains a family operation, with his son Gary and grandsons Chris and Kyle involved. Jeraco’s history includes an early fiberglass cap approved for installation on Subaru Brat pickups at ports before nationwide dealership distribution, and its products carry a lifetime limited warranty.
Jergens Inc. manufactures workholding and fixturing components, hoist rings and lifting products, quick-release pins, OEM/MRO components, specialty fasteners, and automation products. The company serves machining and metalworking, aerospace and military, automotive, and medical markets, with 80% of its product line manufactured in the United States.
Jerr-Dan, LLC designs, engineers, and builds towing and recovery equipment for the towing industry. The company says it has served the industry for 50 years and is part of Oshkosh Corporation. Its equipment is built for recovery, loading, and transport work under demanding conditions.
Since 1949, Pittsburgh’s Jersey Chrome Plating Company has specialized in industrial hard chrome plating and precision grinding for metal components—not decorative work for cars or household goods. Still owned by the Jersey family and led by veteran and Marine officer Alan Jersey, the company combines a closely held plating tradition with in-house machining, grinding and finishing. Its work includes demanding nuclear and defense specifications, and the company maintains ISO 9001:2015 certification.
A privately owned Pennsylvania manufacturer founded in 1938, Jersey Shore Steel is now in its third generation of family ownership. The company is known for hands-on service and American-made production, with nearly 225 employees supporting its rail-steel operation and custom fabrication work for customers worldwide.
Jess Crate Furniture grew out of Barbara and Steve Silver’s Philadelphia textile business before the couple acquired a North Carolina factory and launched the company on August 9, 2006. Today, its Mt. Gilead operation handcrafts American-made furniture for high-use institutional environments, with a factory-direct approach and the ability to match existing pieces or finishes. The company’s work is built around practical longevity for facilities such as camps and dormitories.
Family-owned and operated since 1991, Jet Stream Manufacturing is a Colwyn, Pennsylvania fabricator known for bringing unusually intricate designs to life with abrasive waterjet cutting. Its work has included a 10,000-square-foot Natick Mall floor, where more than 15,000 precisely cut pieces had to fit together without room for error.
Founded in 1982, Jet-Hot coats exhaust and other high-heat components with proprietary ceramic coatings that manage heat, resist corrosion and extend part life. From its Greensboro operation, the company serves both vehicle builders and large-scale manufacturers, processing parts for applications ranging from hot rods to OEM equipment. Jet-Hot says it pioneered ceramic exhaust coating and backs every coating with a lifetime guarantee.
JetNet Corporation makes specialty netting and food-service products, with roots in netting products introduced in the mid-1950s. Formed as JetNet Corporation in 1966, it has supplied the meat and poultry industry for decades and says it is the largest U.S. producer of netting products for that industry. The company also makes equipment for meat and poultry processing and serves nursery and medical product markets.
Founded in 1994, Pittsburgh-based JetStor designs and delivers purpose-built data-storage infrastructure for organizations that need scalable capacity, fast access and long service life. Its systems support workloads from manufacturing and media production to government and healthcare, with engineers tailoring configurations rather than selling one-size-fits-all hardware. JetStor serves more than 4,000 customers worldwide and provides direct 24/7 expert support, emphasizing open standards and avoiding proprietary lock-in.
JF Mill & Lumber, LLC is a Western Pennsylvania lumber and wood-products business that has operated since 1966. It specializes in industrial hardwood and softwood lumber and fabricates custom wood products, including boxes and crates.
Founded in 2001 in Changzhou, Jiangsu, Jiangsu Reliable Industry Co., Ltd. has built its business around serving wire-and-cable manufacturers. Known as RLB, it supplies cable materials and production equipment, drawing on its own facilities as well as established Chinese sourcing partners. The company reports more than 30 successfully delivered projects over the past decade and supports installed lines with technical visits, maintenance, upgrades, and training.