Private company

Kalsi Engineering (United States) is an American company based in Sugar Land, founded in 1978.¹ Its website says: “In addition to providing consulting engineering services, Kalsi Engineering offers rotary seal and software product lines that were originally developed to solve difficult problems associated with energy production. Our patented rotary seals are the result of our pioneering research in hydrodynamic lubrication, making us a leading oilfield rotary seal manufacturer.”²

Last updated Oct 21, 2026.