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Bitterroot Capital Advisors
Andrew S. Martzloff established Bitterroot Capital Advisors in 1998. He retains 61 percent ownership. Carl W. Gardiner holds the remaining 25 percent stake.
Bitterroot Capital Advisors
Andrew S. Martzloff established Bitterroot Capital Advisors in 1998. He retains 61 percent ownership. Carl W. Gardiner holds the remaining 25 percent stake. The firm allocates across private equity, hedge funds, real estate, private credit, and natural resources. It also executes direct co-investments and secondaries. Geographic reach spans North America, Europe, Asia, Africa, South America, and Oceania. No specific portfolio companies appear in public records. The team includes Chief Operating Officer Carrie P. Chestnut. Keith Gertsen joined as Partner in October 2024 after more than twenty years of prior professional ties to Martzloff and Gardiner. Bitterroot maintains a board seat at the Property and Environment Research Center. Bitterroot operates without proprietary funds or products. It instead selects third-party managers and structures mandates around client-specific risk parameters.
General information
Firm type
Multi Family Office
Year founded
1998
Location
Region
North America
Country
United States
City
Bozeman
Corporate office
Bozeman, MT, United States
Principals
Andrew S. Martzloff
Founder / Majority Owner
Keith Gertsen
Partner
Altss tracks 1 additional named team member for this firm — including direct investment leads, IR, and operating principals not listed on the public website.
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Frequently asked questions
Who runs investment decisions at Bitterroot Capital Advisors?
Andrew S. Martzloff serves as founder and majority owner. Carl W. Gardiner acts as co-owner and business partner. Keith Gertsen joined as partner in October 2024.
Is Bitterroot Capital Advisors structured as a single family office or multi-family office?
It operates as a multi-family office serving multiple families and entities through customized mandates.
Does Bitterroot Capital Advisors participate in fund commitments or only direct deals?
The firm uses fund commitments, direct co-investments, SPVs, secondaries, and distressed strategies.
What investment stages does Bitterroot Capital Advisors typically target?
It covers buyout, growth equity, and venture capital stages.
Where does Bitterroot Capital Advisors maintain its headquarters?
The firm is headquartered in Bozeman, Montana.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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