Forest Park In St. Louis, Missouri
Forest Park In St. Louis, Missouri

Thompson Street Capital Partners Portfolio Company Sells Two TriStar Global Energy Solutions Business Units to HydroChemPSC; Retains and Rebrands Third

ST. LOUIS (January 2, 2020)

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Thompson Street Capital Partners, a private equity firm based in St. Louis, has announced the sale of two of its three TriStar Global Energy Solutions business units to HydroChemPSC, a Deer Park, Texas headquartered provider of industrial cleaning solutions to the petrochemical and other energy end markets. The two units involved in the sale are PetroServ tank cleaning and Global Vapor Control degassing. Terms of the transaction were not disclosed.

The third of the three TriStar business units is ZymeFlow Decon Technology (ZymeFlow), in which TSCP retains a majority interest. Going forward, TriStar Global Energy Solutions will be rebranded as ZymeFlow Decon Technology.

ZymeFlow ( has provided its decontamination services to the refinery and petrochemical markets for more than 25 years and is the worldwide leader in decontamination of hydrocarbon process equipment for entry, inspection, and maintenance.