Company Directory
John Van Den Anker
- Vice President
- Investment Team
John is a Vice President with Stonepeak. Before joining Stonepeak, John was a member of the Global Power & Utilities Group at Morgan Stanley, where he focused on M&A transactions across the renewables and utilities sectors.
John received a Bachelor of Arts, summa cum laude, in Economics from the University of Chicago.
Arun Varanasi
- Principal
- Investment Team
Arun is a Principal with Stonepeak. Before joining Stonepeak, Arun was a Director with Credit Suisse Asset Management (CSAM) in the Credit Investments Group, where he focused on private credit. Prior to CSAM, he worked within private credit at Carlyle, Fifth Street Asset Management, and Prudential Private Capital.
Arun received a Bachelor of Science in Finance from Rutgers University and is a Chartered Financial Analyst.
Douglas Wallach
- Senior Managing Director
- Investment Team
Douglas is a Senior Managing Director with Stonepeak in the Capital Markets group. Before joining Stonepeak, Douglas worked at Blackstone, focusing on its debt capital markets activities. Prior to Blackstone, Douglas worked at Kirkland & Ellis as an Associate concentrating his practice on debt finance and private equity.
Douglas received a Bachelor of Arts in Political Science from New York University. He also received a Juris Doctorate from Fordham University School of Law.
Adam Weinstock
- Managing Director
- Investment Team
Adam is a Managing Director with Stonepeak. Before joining Stonepeak, Adam was a Partner at FitzWalter Capital where he helped establish the firm and led investments across multiple sectors. Prior to FitzWalter, he spent 12 years at Macquarie Group, where he was a Managing Director and founding member of the Macquarie Principal Finance business unit.
Adam received a Bachelor of Laws and Bachelor of Commerce in Finance from the University of New South Wales.
Sarah Weissman
- Principal, Legal
- Legal & Compliance
Sarah is a Principal in Legal with Stonepeak. Before joining Stonepeak, Sarah was an Associate in the Mergers & Acquisitions group at Davis Polk & Wardwell LLP.
Sarah received a Juris Doctorate from New York University School of Law and a Bachelor of Arts from Northwestern University.
Nikolaus Woloszczuk
- Senior Managing Director
- Investment Team
Nikolaus is a Senior Managing Director with Stonepeak. Before joining Stonepeak, Nikolaus was Global Chief Investment Officer for Macquarie Principal Finance, a business unit he co-founded and built since 2009. Prior to Macquarie, Nikolaus co-founded Park Street Partners and worked at BC Partners and the Boston Consulting Group.
Nikolaus received a Bachelor of Arts first class in Economics & Management from Oxford University.
Kama Wong
- Vice President
- Investor Relations
Kama is a Vice President with Stonepeak. Before joining Stonepeak, Kama was an Associate in BlackRock’s Financial Institutions Group. She was responsible for developing and maintaining relationships with insurance clients. Kama joined BlackRock’s Institutional Client Business as a Graduate Analyst in 2016, in which she provided support in relationships with sovereign wealth funds, insurers, pensions and endowments.
Kama holds a Bachelor Degree in Business Administration, with concentrations in Marketing and Finance, from The Chinese University Hong Kong.
Stanley Wong
- Director, Information Technology
- Operations & Finance
Stanley is a Director in Information Technology with Stonepeak. Before joining Stonepeak, Stanley was a Regional IT Manager at Donnelley Financial Solutions, where he provided IT Infrastructure support and supervised the day-to-day technical support activities. Prior to Donnelley, he worked at NTT Com Asia in consultant roles.
Stanley received a Bachelor of Arts in Computing from The Hong Kong Polytechnic University.
Brenden Woods
- Senior Managing Director, Head of Product Management
- Investor Relations
Brenden is a Senior Managing Director and Head of Product Management with Stonepeak. Prior to joining Stonepeak, Brenden was a Partner at StepStone, where he founded and led the firm’s infrastructure and real assets business. Brenden was also a Managing Director at Macquarie Group, where he held various infrastructure asset management roles. Earlier in his career, Brenden worked at British Gas, Anglian Water, EY and Andersen.
Brenden received a Bachelor of Financial Administration from the University of New England in Australia.
James Wyper
- Senior Managing Director, Head of U.S. Private Equity and Head of Transportation & Logistics
- Investment Team
James Wyper
- Senior Managing Director, Head of U.S. Private Equity and Head of Transportation & Logistics
- Investment Team
James is a Senior Managing Director and is Head of U.S. Private Equity and Head of Transportation & Logistics with Stonepeak. Prior to joining Stonepeak, James was a member of Credit Suisse’s Global Energy group, where he focused on the power and renewables sectors.
James received a Bachelor of Arts in Economics from Yale University.
David Xia
- Principal
- Investment Team
David is a Principal with Stonepeak. Before joining Stonepeak, David was a Vice President at Oak Hill Advisors, a New York based alternative asset manager focused on high yield and distressed credit investments. Prior to Oak Hill Advisors, David worked in the private equity group at Angelo Gordon. David started his career at Moelis & Company as a generalist in its investment banking group.
David received a Bachelor of Science in Finance and Business Economics from Indiana University.
Alice Yang
- Vice President
- Investment Team
Alice is a Vice President with Stonepeak. Before joining Stonepeak, Alice was an Analyst at Evercore in the Telecom Group, where she focused on M&A transactions across the telecom sectors.
Alice received a Bachelor of Science in Business from the New York University Stern School of Business.
Aaron Yeo
- Managing Director, Chief Operating Officer, APAC
- ESG & Corporate Development
Aaron is a Managing Director with Stonepeak and is the Chief Operating Officer of APAC. Before joining Stonepeak, Aaron was the COO of Asia and the Middle East for Macquarie Capital. He also held the roles of Global COO of the Principal Transactions Group and Asia Head of Asset Management for the Green Investment Group. Prior to Macquarie Capital, Aaron worked at Deutsche Bank as the Acting Head of Group Strategy & Planning for Asia Pacific, at Citigroup as a core member of the Asia Pacific in-house M&A team, and at the International Finance Corporation as an Investment Officer in the Private Equity and Funds group based in the Washington, DC headquarters. Aaron began his career as an investment banker at Merrill Lynch & Co.
Aaron received a Master of Arts in Philosophy, Politics and Economics from the University of Oxford. He also received a Master of Business Administration from INSEAD.
Wendy Yuwen
- Senior Advisor
- Senior Advisors & Operating Partners
Wendy is a Senior Advisor with Stonepeak and supports the firm’s business development efforts in Asia. Wendy’s experience includes serving as the International Finance and Asset Management Specialist at Lennar and working at AECOM Capital and China Communications Construction (USA).
Wendy received a B.E. in Civil Engineering from Tsinghua University, an M.B.A. from MIT Sloan School of Management, and an M.S.E. in Transportation Engineering from the University of Texas at Austin.
Zachary Zangl
- Managing Director, Compliance
- Legal & Compliance
Zachary is a Managing Director in Compliance with Stonepeak. Prior to joining Stonepeak, Zachary was the Chief Compliance Officer at Czech Asset Management, L.P. Before that, Zachary was a Senior Compliance Officer at Apax Partners. Zachary has also held compliance roles at Morgan Stanley and started his career as a Legal Assistant at Davis Polk & Wardwell LLP supporting the Financial Institutions group.
Zachary received a Bachelor of Arts in Political Science and History from the University of Wisconsin-Madison.
Nicolò Zanotto
- Managing Director, Head of Digital Infrastructure, Europe
- Investment Team
Nicolò is a Managing Director with Stonepeak and is Head of Digital Infrastructure, Europe. Before joining Stonepeak, Nicolò was a Partner at Searchlight Capital Partners responsible for media and communications investments in Europe. Prior to Searchlight, he worked at Gladstone Capital Management and Providence Equity Partners in London, where he covered investment opportunities in the TMT sector. He began his career at Morgan Stanley on the media and communications team.
Nicolò received a Bachelor of Science with Honours in Economics from the University of Buckingham and a Master of Science in Banking & International Finance from the Bayes Business School.
Jingyi Zhang
- Vice President
- Investment Team
Jingyi is a Vice President with Stonepeak. Before joining Stonepeak, Jingyi was an Analyst at Nomura, where she focused primarily on the infrastructure and energy sectors.
Jingyi received a Bachelor of Science in Business from the New York University Stern School of Business.
Daniel Zinic
- Managing Director
- Investor Relations
Daniel is a Managing Director with Stonepeak. Before joining Stonepeak, Daniel was a Managing Director at Park Hill Group. Prior to Park Hill, Daniel was a Partner at First Avenue Partners in Institutional Sales with a focus on the DACH region. Earlier in his career, Daniel worked in sales and distribution at both Citigroup and Fidelity.
Daniel received a Bachelor of Business Administration degree from Darmstadt University in Germany.
Andrew Barron
- Operating Partner
- Senior Advisors & Operating Partners
Andrew is an Operating Partner with Stonepeak and supports Stonepeak’s investments in digital infrastructure. Andrew has enjoyed a long career of senior leadership roles in telecom and media companies primarily in Europe, including Virgin Media (Chief Operating Officer), Modern Times Group (Chief Operating Officer), UPC (now Liberty Global), The Walt Disney Company and McKinsey. Andrew currently serves as a Non-Executive Director on the boards of Openreach (UK) and Verisure (Sweden). Andrew is a former Chairman of Comhem (Sweden), Primacom (Germany) and Tele2 (Sweden) and is a former Non-Executive Director of Arris (US) and Ocean Outdoor (UK), which was a SPAC he co-founded, listed and subsequently sold.
Andrew is a graduate of Cambridge and Stanford Universities.
Ken desGarennes
- Operating Partner
- Senior Advisors & Operating Partners
Ken is an Operating Partner with Stonepeak and supports Stonepeak’s investments in communications and digital infrastructure. Ken has more than twenty years of telecommunications experience. He served for over ten years as the Chief Financial Officer of Zayo Group, overseeing all financial operations of the business, including over forty-five acquisitions and the company’s 2014 Initial Public Offering. Prior to Zayo, Ken served as Chief Financial Officer at Wire One Communications and previously Accenture. Ken currently serves as Chairman of the Board of Directors of Six Degrees, a leading cloud-led managed service provider in the UK.
Dino Djalal
- Senior Advisor
- Senior Advisors & Operating Partners
Dino is a Senior Advisor with Stonepeak and supports Stonepeak’s investment efforts in Asia. During his long and distinguished diplomatic career, Dino served as the Indonesian Ambassador to the United States, Vice-Minister for Foreign Affairs, and advisor to the Indonesian President.
Dino received a Bachelor of Arts in Political Science from Carleton University, a Master of Arts in Political Science from Simon Fraser University, and a Doctor of Philosophy in International Relations from the London School of Economics.
Theresa Eaton
- Operating Partner
- Senior Advisors & Operating Partners
Theresa is an Operating Partner with Stonepeak and supports Stonepeak’s efforts in renewables, energy transition, and energy infrastructure. Theresa is the Chief Executive Officer, Chairperson and Owner of WECS Renewables, a national utility-scale distributor for the solar, battery storage, wind, and data center industries.
Theresa previously served as a Partner of SCF Partners, an energy services and equipment private equity firm, where she led the firm’s origination efforts and had strategic growth responsibility for development of investments, serving on several company boards.
Theresa is currently a Director of WECS Renewables, West Texas Gas Corporation, the American Clean Power Association, the Center for Renewable Energy Advanced Education (a National Science Foundation-founded organization that provides training for educators who teach wind and solar installers and technicians), and Duke University’s Board of Innovation & Entrepreneurship.
Theresa received a Juris Doctorate and a Bachelor of Arts in Japanese and International Studies from Duke University.
Michael Heim
- Operating Partner
- Senior Advisors & Operating Partners
Mike is an Operating Partner with Stonepeak and supports Stonepeak’s investments in energy. Mike is a founder and former Vice Chairman of the Board of Targa Resources Corp. He was with Targa from 2003 to 2019, initially as Executive Vice President and Chief Operating Officer and later as President and Chief Operating Officer. His primary roles at Targa included leading the company’s Commercial, Engineering, Construction, Operations, ES&H, Land, and Procurement Departments for all owned assets and direct participation in all acquisitions, divestitures, and business development. Prior to Targa, Mike was an officer of several Coastal Corporation subsidiaries in the energy sector. Mike is currently on the board of Oryx Midstream Services. He is also on the Management Committee of Ohio Valley Midstream, a gathering, processing, and fractionation company in Appalachia. Additionally, he is a Lifetime Director of the Houston Livestock Show and Rodeo, which promotes agriculture, Texas education, and showcases Western Heritage.
Mike received a Bachelor of Science in Aerospace Engineering from the University of Texas at Austin and a Master of Business Administration from the University of Houston, with a concentration in finance and international business.
Denis Hughes
- Operating Partner
- Senior Advisors & Operating Partners
Denis is an Operating Partner with Stonepeak and supports Stonepeak’s government and labor relations efforts. Denis served four terms as President of the New York State AFL-CIO where he achieved numerous legislative victories to advance labor interests. Denis was also instrumental in securing $20 billion in federal funds to rebuild New York City after the 9/11 tragedy as well as securing passage of the James Zadroga 9/11 Heath Care and Compensation Act, which provides necessary funding for medical care for 9/11’s first responders. Denis served on the Board of Directors of the Federal Reserve Bank of New York from 2004-2010, including as Chairman from 2009-2010.
Denis received a Bachelor of Science in Labor and Industrial Relations from Empire State College.