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Known for its Entry® de-icer, Secure Winter Products develops winter-maintenance solutions for building owners, facility managers and other customers responsible for safe outdoor surfaces. The company distributes its products across North America through authorized partners, with a focus on reducing the environmental and indoor mess associated with traditional salt de-icers.
Since 2009, Security Servers and Workstations has customized Intel data center servers and built custom workstations and servers. The company focuses on purpose-built computing systems, with its work shaped around changing marketplace needs.
Founded in Pittsburgh in 2003 by roboticist Hans Moravec, Seegrid builds autonomous mobile robots for material handling in manufacturing, warehousing, and logistics facilities. Its U.S.-engineered lift trucks and tow tractors use infrastructure-free navigation to move pallets and cart trains through busy sites where people and automation work together. Seegrid also provides Fleet Central software and deployment support, with more than 2,000 AMRs operating across over 200 customer sites and more than 20 million autonomous miles driven.
Based in Monthermé, France, SEFAC is a manufacturer known for developing lifting technology for vehicle-maintenance workshops. Its equipment serves professionals working on road and rail vehicles, with technical support available throughout the equipment’s working life.
Launched in 2021 as the American arm of an Italian company founded in 1981, Seitron Americas supplies precision instruments for combustion analysis, gas safety, and refrigeration professionals. Its parent company controls production from design through laboratory testing and has developed tools ranging from mechanical thermostats to connected IoT systems, while Seitron Americas adds localized support and distribution for HVAC-R and industrial customers. The broader Seitron organization holds ISO 9001 certification, obtained in 1999, and exports to 60 countries.
Founded in 1965, SEKISUI KYDEX is a subsidiary of SEKISUI America Corporation and has built its identity around durable thermoplastic innovation without plasticizers. From its U.S. manufacturing and R&D operations, the company develops materials for demanding environments, including aviation interiors and medical equipment, while using its innovation centers to help turn early designs into production-ready solutions.
Founded in 1976, SEKO designs and manufactures chemical dosing pumps and systems for the water-treatment and cleaning and hygiene industries. The company combines more than 45 years of dosing expertise with a global manufacturing and support network spanning 120 countries, more than 1,300 employees and over 1.4 million pieces produced annually. SEKO’s operations are certified to ISO 9001, ISO 14001 and OHSAS 18001 standards, with every product tested before shipment.
Founded by Stanley and Yola Sekula in 1946 after Stanley’s Army Air Force service, Sekula Sign Corporation designs, manufactures, installs and maintains custom signage from its DuBois shop. The family business has grown from painted hand-lettered signs into digital message boards, illuminated displays and carved work, while retaining a hands-on team with more than a century of combined signage experience. Bobby and Noelle Lynett became owners in 2018 and continue the Sekula family legacy alongside Paul Sekula.
For more than 40 years, Selectrode Industries has been known for making private-label welding consumables without selling a competing house brand. From its Aliquippa, Pennsylvania manufacturing plant, the company develops and produces custom-branded electrodes for customers around the world, including specialized products made to customer specifications. Its quality system is certified to ISO 9001:2015.
Selin’s Grove Brewing Co. brews its own beers in a historic Pennsylvania brewpub housed in the original kitchen of an 1816 building commissioned by Governor Simon Snyder. The pub has operated as a brewpub since 1996, with new owners Nathan and Corinne taking over in mid-2023 while keeping its origins in view. Its dog logo draws on an 1830s local account of dogs powering brewery pumps, and the company supports local no-kill animal shelters in their memory.
Sellars Absorbent Materials, Inc. is a family-owned Milwaukee manufacturer founded in 1985 that makes sustainable wiping, absorbent, and towel-and-tissue products, using proprietary technology to turn post-consumer waste into products. The company opened its first Milwaukee manufacturing facility in 1987 and says it is one of only two manufacturers of DRC towels worldwide.
Founded in Selinsgrove in 1971 as a machine-tool facility, Selmax Corporation has grown into a U.S. contract manufacturer of custom plastic injection-molded products. The company carries projects from early design and rapid prototyping through mold development, production and distribution, with an in-house machine shop for mold work and nine molding presses. Selmax is ISO 9001:2015 certified and continues the “Made in the USA” legacy of founder Ken Mease, a World War II Army Air Corps veteran and former Selinsgrove mayor.
Since Harvey Seltzer developed his spice blend in 1902, Seltzer’s Smokehouse Meats has made Lebanon Bologna and other all-beef smoked meats in Palmyra, Pennsylvania. Now fourth-generation owned, the family still uses tall wooden smokehouses and hand-tended fires for its signature three-day natural hardwood smoking process, without fillers or artificial smoke. Seltzer’s was the country’s first federally inspected Lebanon Bologna company and remains one of the oldest continually USDA-inspected operations in the United States.
Semiconductor Ozone Solutions develops, refurbishes, and repairs ozone-generation and gas-infusion equipment for semiconductor manufacturing. Based in Allentown, the company focuses on urgent production needs and aging systems, including restoration of IN USA/Teledyne generators and repair of Akrion megasonic amplifiers. Its team brings more than 130 years of combined semiconductor-industry experience and tests stocked equipment before sale, with repair warranties of six to 12 months.
Semilab began in 1989 as a scientist-founded spin-off of the Research Institute for Technical Physics of the Hungarian Academy of Sciences. From its Budapest base, it has grown into a global metrology company with more than 1,300 employees, supporting semiconductor, photovoltaic and display manufacturers as well as academic researchers. Its distinctive strength is the in-house scientific team that carries measurement ideas through instrument development and production.
Sen Engineering Solutions, Inc. develops power-flow control technology for electric transmission grids, including its patented SMART Power Flow Controller, which functions as an impedance-regulating transformer. The company reports that a commercial-grade Sen Transformer was manufactured and tested at 33 kV with a throughput rating of ±6.5 MVA, and describes its work as spanning research and development, engineering, sales, manufacturing, and quality assurance.
Woman-owned and family-operated, Seneca Mineral Company has served the Erie area since 1957, when it began supplying salt brine to local townships. The company still supplies LS25 to some of those same communities while serving customers nationwide with industrial ice and dust control solutions. Its small-business character remains central: customers reach a member of the family when they call.
President Jeff Steigerwald has been part of Seneca Printing Express & Label for more than 20 years, bringing a hands-on, customer-focused approach to the Franklin, Pennsylvania company. Seneca produces commercial print and custom labels for brand owners, with its G7 Master Printer and GMI Certified Print Facility designations reflecting a focus on consistent production quality.
SENKO Advanced Components designs and supplies fiber-optic interconnect products, with a specialty in precision connectivity across optical networks. Its history traces to Senko's 1946 founding in Japan; SENKO Advanced Components was incorporated in the United States in the early 1990s and is a wholly owned subsidiary of Senko Advance Co., Ltd., headquartered in Yokkaichi, Japan. The company says it has more than 30 years of experience and works with customers on designs and physical prototypes, which it says can take weeks rather than months.
Family-owned since 1985, Sensaphone is an Aston, Pennsylvania manufacturer known for building remote environmental monitoring systems in the United States. Its equipment helps organizations watch conditions at unattended or sensitive facilities and receive early warning when something changes, with more than 400,000 systems in use worldwide.