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Founded by George Simon in 1911, Simoniz USA makes automotive appearance and protection products alongside professional cleaning and sanitation solutions for businesses worldwide. Still family-owned across multiple generations, the Bolton, Connecticut company has grown into four specialized divisions supported by 13 distribution centers and more than 450,000 square feet of facilities. Its Simoniz Garage also develops and tests detailing products with professional detailers, extending a century-old car-care heritage into modern commercial markets.
Pittsburgh-based Simple Origin designs and manufactures precision cryogenic TEM specimen holders and related instrumentation for cryo-EM, materials research, and in-situ microscopy. Founded by engineers who began by solving specific laboratory problems, the company works closely with scientists to turn those needs into practical tools, including controlled-atmosphere transfer systems for air-sensitive samples. Simple Origin is also the exclusive North American representative for TVIPS TEM cameras and Bestron science and technology.
With more than 50 years of electronics experience, Simple Worldwide is a value-added manufacturer and supplier known for combining global sourcing with hands-on engineering support. The company works with OEMs and contract manufacturers in commercial and industrial markets, developing custom solutions around their designs while keeping products stocked for scheduled fulfillment.
As part of the family-owned J.R. Simplot Company, Simplot Turf & Horticulture draws on decades of plant-health experience to advise professionals responsible for managed turf and plants. Its specialists, who average 20 years in the industry, work as an extension of customers’ teams and are supported by more than 25 U.S. locations. The company is also the exclusive provider of the GreenKeeper decision-support app for turfgrass professionals.
Lancaster County entrepreneurs Nancy and Bev—“the Ghee Gals”—have been making small-batch ghee from grass-fed butter since 2013. They began with 55 pounds of butter cooked on stovetops and now supply both household cooks and specialty food businesses with ghee made to their specifications from Pennsylvania and other U.S. butter sources. Their A2 grass-fed ghee starts with DNA-certified Guernsey cows from a single Lancaster County farm, while bulk formats serve restaurants, meal-prep companies and food producers.
Locally owned and operated by Todd Simpson, Simpson Machine is a Muncy, Pennsylvania shop known for 35 years of precision machine work and engine reconditioning. It serves a range of industries, including commercial automotive and truck businesses, with repairs such as engine block work.
Simpson Reinforcing, Inc. fabricates reinforcing steel for construction projects in Western Pennsylvania and the surrounding region. The business began in 1969 with construction-industry drafting and blueprint reproduction, opened its rebar fabrication shop in 1972, and moved into its Arnold, Pennsylvania facility in 2016. Its current fabrication space covers 90,000 square feet and supports large regional projects.
Family-owned since 1971, Sims-Lohman distributes cabinetry and fabricates countertops for building-industry professionals and their clients. The company says it distributes more than 50,000 kitchens and fabricates 20,000 countertops annually, with six manufacturing locations identified on its locations page. Its countertop work includes natural stone and engineered quartz, with templating and installation offered as part of the customer process.
Founded in Atlanta in 1983, Simtech Process Systems manufactures engineered thermoplastic products and systems that convey, contain and control high-purity water, corrosive fluids and chemical fumes. Now based in Levittown, Pennsylvania, the company supports projects from system design through field training and also provides custom fabrication and contract manufacturing for thermoplastic components. Its history includes the development of proprietary double-containment, reinforced piping and air-handling systems, with pipe and fittings certified to ISO 9001.
Sindri Materials Corp. manufactures ultra-high-quality graphene designed to carry advanced materials research from the laboratory into scalable applications. Founded around more than 1,000 experimental growths and led by founder and CEO Dr. Christopher DiMarco, whose work validating graphene production appeared in Nature, the company first applies its graphene to cryo-EM grids for clearer, higher-resolution imaging. Its research and engineering efforts also extend toward semiconductors and next-generation materials.
Founded by Bill Wiedmann and Marty Parisien on April Fool’s Day 2004, Singing Dog Vanilla makes organic vanilla products for home bakers, chefs, and food businesses. The Eugene company works directly with more than 400 vanilla-growing families in Indonesia, Uganda, and Papua New Guinea through its Fair Trade Plus+® program, paying market prices and sharing profits with farmers. Its memorable name comes from the New Guinea Singing Dog, while the company’s distinctive focus is serious vanilla with a direct, farmer-centered supply chain.
Pittsburgh-based Singularity Polymers develops a patent-pending ionic-liquid and clay additive that turns standard polyethylene into high-barrier, mono-material film for fully recyclable flexible food packaging. Backed by Carnegie Mellon University and supported by RoCo® advanced materials, the company is moving its technology from research into blown-film trials with packaging manufacturers. Its drop-in approach is designed to work with existing extrusion equipment while maintaining oxygen and moisture protection comparable to conventional multi-layer films.
Established in Pennsylvania in 2008, SINTEC US LIMITED delivers mechanical and electrical installation services for commercial and industrial equipment. Its Charlotte-based operation is part of a four-office international group with 146 industry professionals and more than 150 completed projects, supporting installations and commissioning work across borders. The company gives each project the same close attention, whether it is a large automated material-handling installation or a smaller industrial job.
Known for originating lead-free frangible projectile technology, SinterFire has been developing safer, lower-hazard ammunition components since 1998. Based in Pennsylvania, the company manufactures projectiles and ammunition for government and law-enforcement training as well as civilian shooting applications, with production supported by a 22,000-square-foot facility and on-site testing ranges.
Sintergy, Inc. manufactures precision powder metal parts and components at its Reynoldsville, Pennsylvania facility. The company describes its operation as having 86,500 square feet of manufacturing space, 75 employees, 18 compacting presses, and five sintering ovens, and it works with customers on engineered part designs and production.
Since 1975, Kittanning-based SinterMet has researched, developed and manufactured tungsten-carbide rolls for bar and rod mills, supplying the majority of North American tungsten-carbide rod mill rolls. Its engineered Shur-Lock and Shur-Clad composite roll systems are tailored to individual mill conditions, while the company also supports customers with application assessments and technical guidance. SinterMet has held ISO 9001:2015 certification and notes that many employees have been with the company for more than 30 years.
For more than 40 years, Sippel Steel Fab has fabricated and erected structural steel in Ambridge, Pennsylvania, handling complex geometries, oversized members and difficult connections. The company grew from a one-machine weld-repair and light-fabrication shop into an AISC-certified fabricator with in-house detailing, engineering and erection planning. Its Ohio River facility supports barge, rail and truck logistics for large projects, including the 1.2-million-square-foot Mercedes-Benz van plant.
Site-Specific Solutions, Inc. makes lightning-protection equipment for AC and DC power lines, including line-to-ground protectors and power supplies. Based in Bridgeville, Pennsylvania, the company also develops site-specific upgrade kits configured for a location’s particular lightning-protection needs.
SK pharmteco, a subsidiary of South Korea’s SK Inc., develops and manufactures pharmaceutical therapies as a global contract development and manufacturing organization. Its seven facilities across North America, Europe, and South Korea support small-molecule and peptide programs alongside viral-vector manufacturing, with services extending from process development and analytical testing through commercial production. The company traces its CDMO business to 1996 and entered cell and gene therapy through its 2021 acquisition of French viral-vector specialist Yposkesi.
SK Tools USA, LLC traces its roots to the Sherman-Klove Company, founded in the early 1900s, and manufactures professional hand tools for American technicians. The brand is closely associated with its round-head ratchet, a design introduced in 1934, and now makes more than 1,500 products. Manufacturing and distribution moved to Williamsport, Pennsylvania, in 2021, where SK continues building on a century of toolmaking history.