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Founded in 1986 by chemical engineer Matt Smith, L S Enterprise LLC supplies cooling-tower and biofiltration media while providing the engineering guidance needed to apply it. Formed in 2020 when Smith joined Bill Miller, the East Earl company draws on more than 65 years of combined experience, including Miller’s work in cooling-tower product development and his role as a licensed Pennsylvania professional engineer. Its long-standing specialty is helping OEMs, contractors, and other specialists select practical solutions for packed-column and direct-contact heat- and mass-transfer systems.
Since 1868, family-owned L. Brüggemann GmbH & Co. KG has grown from its historic Heilbronn base into a specialist for niche chemical solutions. Its close customer relationships and in-house research, application technology and production support tailored products supplied to customers in more than 50 countries.
Founded in Ennigerloh in 1981, L.B. Bohle Maschinen und Verfahren GmbH designs and manufactures machinery and complete process systems for pharmaceutical solid-dose production. Its German facilities produce equipment for both conventional batch manufacturing and continuous production, including the QbCon® line that carries materials from powder to coated tablets. With roughly 40,000 square metres of production and operating space, the company serves customers worldwide while developing and testing processes at its Ennigerloh Service and Technology Centres.
Established in 1902, L.B. Foster Company develops and manufactures engineering solutions for rail and infrastructure, from rail-system products and monitoring technologies to precast concrete infrastructure. The Pittsburgh-based company operates 19 plants and offices worldwide with more than 1,200 employees, and its Transit Products business has designed and tested rail components since 1984. Its North American and European operations hold ISO 9001:2015 registrations, alongside specialized rail and precast-concrete certifications.
Since 1977, L.E.E. Engraving Services has served customers across the United States with industrial engraving on plastics and metals, including custom nameplates and legend plates. The company stands out for its three-proof accuracy process—requiring every plate in an order to be correct—and offers 24-hour turnaround on in-stock items. Its work also includes laser marking parts with bar and QR codes and custom plates made to customer specifications.
L.F. Spawn Co, founded in 1919, is the oldest independent spawn manufacturer in North America. The company specializes in producing pure culture spawn for the mushroom industry, with a focus on technology, exceptional people, and commitment to quality.
Since Lawrence L. Brown started the company in 1968, L.L. Brown has built its identity around technologically driven, precision work for manufacturers that need hard-to-find parts or specialized tooling. The Enola-area company operates from three buildings with 20,000 square feet of manufacturing space, and has been producing thermoform tooling since 1990, including a patented gasket-sealing approach for continuous-shape forming.
From its Reading headquarters, L&H Companies designs, engineers, fabricates, and installs custom architectural signage and branded environments. With more than 30 years in the field, approximately 70,000 square feet of manufacturing space, and a team of over 100 employees, the company handles projects from concept through installation under one roof. Its work includes complex wayfinding programs and distinctive venues such as Baylor University’s 7,000-plus-seat Foster Pavilion.
Based just south of Philadelphia, L&L Special Furnace designs and builds industrial furnaces, ovens, kilns, quench tanks and complete heat-treating systems for industrial and laboratory use. The company keeps its engineering and manufacturing in-house at one location, then supports equipment worldwide with startup, repair and parts service. Its longstanding product line spans standard equipment and specially configured systems for demanding thermal applications.
L2 Brands, Inc. makes branded apparel and headwear, including custom-decorated products, through its League and Legacy offerings. Its Hanover, Pennsylvania location includes a manufacturing facility, and the company also serves wholesale customers with custom-order production and decoration.
L3Harris Technologies develops and manufactures mission-critical aerospace, defense, communications and space technologies, and integrates complex systems for government and commercial customers. The company describes a century of innovation and serves customers across air, land, sea, space and cyber domains, with three strategic segments and operations in more than 100 countries.
Founded in Philadelphia in 1994, La Colombe Coffee Workshop began with a café and micro-roaster and grew into a coffee roaster, brewer, and café operator. The company sources coffee from producers around the world and roasts and blends it in Philadelphia; it is also known for inventing its Draft Latte and producing ready-to-drink coffee beverages.
La Dolce Vita Courthouse Bakery is a family-run Italian bakery and café in historic downtown Lancaster, built around recipes from the owners’ family. It is best known for traditional butter cookies and serves local customers with fresh baked goods, café fare, and custom food for celebrations and business events.
La Dolce Vita Italian Bakery is an Allentown bakery making Italian breads, pastries, cookies and specialty cakes, with an espresso lounge for customers to enjoy them. The bakery also prepares custom wedding offerings and has a dedicated “Meet the Bakers” focus that puts its craft at the center of the business.
La Dorita is a family-founded food business established by Gastón and Josephine Oría, making small batches of Argentine-style dulce de leche from 2009. Inspired by Josephine’s grandmother Dorita and Argentine family traditions, the company sold its handcrafted dulce de leche along the East Coast before closing that product chapter during the COVID-19 period. The Orías also founded La Dorita Cooks, a Pittsburgh commercial kitchen incubator that supported more than 200 food entrepreneurs before its 2024 asset sale.
Founded by French-born Fabien and Lisanne Moreau, La Gourmandine brings traditional French baking to Pittsburgh through its breads, pastries and cakes. Fabien trained at Paris’s Lenôtre Culinary Institute, and the bakery has grown from its first Lawrenceville shop, opened in 2010, to five Pittsburgh locations with centralized production in Hazelwood. Its Downtown café also offers a full espresso bar.
La Prima Espresso Co. is a Pittsburgh coffee roaster and blender founded in the Strip District in 1988. The veteran-owned business grew from a commercial espresso equipment showroom into a roastery and a group of city caffès, roasting coffee to order for wholesale partners and online customers. It describes its work as honoring Italian coffee traditions while respecting employees, the environment, and coffee farmers.
Founded in 1986, LabChem is a Zelienople, Pennsylvania chemical manufacturer known for maintaining control of its production and quality testing. It supplies certified solutions to laboratories and production users, while accommodating specialized customer requirements beyond its catalog.
Founded in the late 1920s, Labelcraft Press is a Perkasie commercial printer serving businesses, clubs, and individuals across the Pennridge area. The company combines graphic design with short-run and commercial printing, copying, and rubber-stamp work, and has remained under the ownership of Charles Schmell since 1984 after he spent nine years working for the previous owner. Its customer base includes local governments, schools, banks, and other area businesses.
Started in a garage in 1968, Labels by Pulizzi is a family-owned Pennsylvania printer that produces custom labels and serves broader commercial-print and promotional needs. The company has printed more than a billion labels, survived a 1990 fire, and now operates from a 30,000-square-foot facility in Williamsport. Vincent and Selina Pulizzi took the business into its next generation in 2021, carrying forward a hands-on family operation known for responsive service and quick turnaround.