Our Team

Andrew S. Martzloff

Managing Director, Principal & Founder

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Andrew S. Martzloff

Managing Director, Principal & Founder

Andrew S. Martzloff founded Bitterroot Capital Advisors in 1998 as an independent financial advisory firm dedicated to providing comprehensive, personalized financial advice and service to a select group of private clients worldwide. He has built an organization and culture that is unsurpassed in client service and results.

Before founding Bitterroot Capital, Andrew spent more than ten years advising public and private corporations as an investment banker with Alex. Brown & Sons in San Francisco, and Morgan Stanley & Co. in New York.

Andrew earned his BA with Distinction, and Honors in Economics, from Stanford University and an MBA from Dartmouth’s Tuck School of Business, where he was named an Edward Tuck Scholar.

William J. Powers

Principal & Chief Compliance Officer

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William J. Powers

Principal & Chief Compliance Officer

William J. Powers, MBA, CPA, joined Bitterroot Capital Advisors in 2011. Bill has extensive financial and operational experience and held such executive positions as Managing Director, Chief Operating Officer, Chief Compliance Officer and Chief Financial Officer at Hall Capital (2000-2007) in San Francisco and Managing Director and Chief Financial Officer with CM Capital (2007-2009).

Bill earned his BS in Economics from St. Mary’s College and MBA in Accounting from Golden Gate University.

Carl W. Gardiner

Director, Client Advisor

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Carl W. Gardiner

Director, Client Advisor

Carl W. Gardiner, CFA joined Bitterroot Capital Advisors in 2019 to provide multi-disciplinary financial and investment advice to BCA’s select group of private clients. Carl applies his unusual mix of transactional, fundamental and quantitative skills to BCA clients’ unique situations when developing unconditional advice and solutions that help simplify the complex.

Before joining BCA, Carl spent 18 years as an investment analyst and portfolio manager at Schafer Cullen Capital Management and Copper Arch Capital in New York City. Before that, he spent nine years as an investment banker with Merrill Lynch & Co. in New York and London, where he advised corporate clients on mergers & acquisitions and financings, including several landmark transactions.

Carl earned a BA with High Honors in Government from the University of Virginia and a MA in International Economics from Johns Hopkins University. He is a CFA charterholder.

Sid Nadkarni

Chief Investment Officer

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Sid Nadkarni

Chief Investment Officer

Sid Nadkarni joined Bitterroot Capital Advisors in 2019 with more than 16 years’ experience in the investment management business. Before joining Bitterroot, Sid was Senior Portfolio Manager with the Abu Dhabi Investment Authority (UAE’s sovereign wealth fund) and previously held a similar position and title for Shell Asset Management in the Netherlands. Sid began his career as an investment banker with Arthur Andersen in Virginia and then later at Lehman Brothers in New York City.

Sid received his BS in Commerce from the University of Virginia and MBA with Distinction from Harvard Business School.

Carrie P. Chestnut

Portfolio Analyst

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Carrie P. Chestnut

Portfolio Analyst

Carrie P. Chestnut, CFA, joined Bitterroot Capital Advisors in 2017. Prior to joining BCA, she worked as a Portfolio Manager at Capital Guardian Trust Company in Los Angeles and as a Financial Analyst at Right Now Technologies (now part of Oracle) in Bozeman. Carrie manages analytics, accounting and reporting for client portfolios and works with our clients as part of BCA’s client services team.

Carrie earned a BS in Business from Montana State University. She is a CFA charterholder.

Nathan R. Tewson

Portfolio Analyst

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Nathan R. Tewson

Portfolio Analyst

Nathan R. Tewson joined Bitterroot Capital Advisors in 2013, after over ten years of experience in the finance industry as a Business Analyst and Commercial Lender for American Bank. In addition to performing accounting and analytics for client portfolios as part of our client services team, Nathan conducts research on investment managers and markets.

Nathan received a BS, with a concentration in Finance, from Montana State University and completed graduate-level coursework through the University of Washington’s Department of Applied Mathematics, where he earned a Graduate Certificate in Computational Finance.

John E. Galt

Head of Finance and Operations

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John E. Galt

Head of Finance and Operations

John E. Galt, CPA, joined BCA in 2019. Before joining Bitterroot, John was with major regional public accounting firm Eide Bailly LLP for eight years, most recently as Tax Manager. In that role, he worked primarily on income tax and estate & trust matters for individual and corporate clients while also advising on succession and financial planning and IRS response consultations.

John earned his BS in Business Management and a Masters of Accountancy from Rocky Mountain College.