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Leadership
GSTJ LLC principals
GSTJ leadership across power, capital, and execution.
GSTJ LLC is led by five principals spanning turbine markets, fund operations, transaction execution, defense programs, and independent compliance.
Entity index
Five accountable mandates.
01Thomas ZickellChief Executive OfficerThomas Zickell is Chief Executive Officer and cofounder of GSTJ LLC, working across defense, energy, and data-center infrastructure.02Michael GoeringChief Operating OfficerMichael Goering is Chief Operating Officer of GSTJ LLC and Chief Executive Officer of Data Power Investments.03Jonathan MandersonManaging PartnerJonathan Manderson is Managing Partner of GSTJ LLC, working across transaction origination and execution.04Stephen HaasFounding MemberStephen Haas is a founding member of GSTJ LLC and a central figure in the firm’s defense-sector work.05Stuart WeissChief Compliance OfficerStuart Weiss serves as the independent Chief Compliance Officer for Data Power Investments at the fund level.
Start with the mandate