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Grant E. Scott Jr. founded Scott Engineering Company in Olean, New York, in 1960 with a willingness to tackle unusual engineering challenges—a spirit that still defines Scott Rotary Seals. The company now serves customers worldwide from its Olean operation, drawing on more than five decades of specialized fluid-sealing experience and complete in-house production to develop custom solutions for demanding rotating equipment applications.
System SealsFounded in Cleveland in 1995 by engineer Arnold von Engelbrechten, System Seals designs and manufactures custom high-performance sealing systems for equipment where failure is not an option. Its engineers use proprietary modeling tools to tailor seals to exact operating conditions, supporting OEMs and operators in demanding wind-energy, oil-and-gas, and heavy-industrial applications. The company now has more than 160 people across North America and Europe and serves customers in over 40 countries.CLEVELAND, OH
Clark Seals, LtdFounded in 1956, Tulsa-based Clark Seals engineers and precision-manufactures custom elastomeric seals for original equipment manufacturers and oil and gas applications. Its engineers are known for tackling difficult failures, from seasonal snow-blower leaks to contaminated commercial washing-machine seals, often redesigning the seal around the equipment rather than fitting a standard part. The company also operates a 130-employee manufacturing facility in Ningbo, China, with a stated annual capacity of 40 million pieces.WILLOUGHBY, OH
Stein Seal Industrial DivisionFounded in 1955, Stein Seal Industrial Division designs and manufactures custom mechanical seals and precision components for demanding rotating equipment, with a Pennsylvania engineering and production operation serving commercial and industrial customers. As the industrial arm of Stein Seal Industries, it brings seven decades of seal-design experience to applications ranging from power generation and chemical processing to pharmaceutical production. Its work is backed by reverse-engineering and repair services, more than 25 dynamic test rigs, and ISO 9001:2015 and AS9100D certification.TELFORD, PA