Governance

Mark Vorsatz has been the Chief Executive Officer and the Managing Director of our Private Client Services practice since co-founding Andersen in 2002 and has been a member of Andersen Group Inc.’s Board of Directors and Chairman since April 2025. Mr. Vorsatz has also been the Chairman of Andersen Global since 2013 and Chairman of the boards of directors of MDM and MDI since January 2025. Mr. Vorsatz has been instrumental in the formation of Andersen’s worldwide presence, spearheading the establishment and expansion of Andersen Global into more than 500 locations across the world. In addition to his management responsibilities as Global Chairman and CEO, Mr. Vorsatz continues to provide tax services, working exclusively with individuals in the design and implementation of customized income tax and estate planning solutions. Mr. Vorsatz has also served as the Chairman of the Andersen Institute for Finance and Economics since 2023 and on the board of directors of several privately held companies. Prior to founding Andersen, Mr. Vorsatz joined Arthur Andersen in 1979 and served as Partner from 1987 until 2002. Mr. Vorsatz holds an A.B. in Political Science and Economics from Stanford University and a J.D. from University of California, Hastings College of Law.

Robert V. Gunderson, Jr. has been a member of Andersen Group Inc.'s Board of Directors since July 2025. Mr. Gunderson is a founding partner and Chairman Emeritus of the law firm of Gunderson Dettmer Stough Villeneuve Franklin & Hachigian, LLP, where he practiced from 1995 through December 2021. Gunderson Dettmer is an international law firm focused on the innovation economy with over 350 lawyers and over $500 million of revenue for the year ended December 31, 2024. Gunderson Dettmer has been ranked as the #1 venture capital law firm globally by PitchBook since 2014. Mr. Gunderson is a Fellow of the American College of Governance Counsel. Mr. Gunderson has been a director of a number of public companies, including, most recently, Theravance Biopharma, Inc. from 2013 to September 2021, and numerous private companies over the past 30 years. Mr. Gunderson holds an M.A. in Philosophy from Stanford University, an M.B.A. from The Wharton School, University of Pennsylvania, and a J.D. from The University of Chicago, where he was Executive Editor of The University of Chicago Law Review. Mr. Gunderson’s bar memberships are currently inactive.

Dorice Pepin has been with Andersen since 2007 and has served as Regional Managing Director for the Central Region since March 2023, overseeing the provision of comprehensive tax services and assisting clients with planning for the effects of business acquisitions, reorganizations, tax examinations and changes in tax law for multistate and multinational business operations. Since January 2024, Ms. Pepin has also served as a member of the CEO Nominating Committee, and since 2017, as a member of Andersen Global’s Board of Directors and a member of its Partner Admissions Committee. While at Andersen, Ms. Pepin has held various roles, including as a non-board member of the Compensation Committee of Andersen Tax LLC from 2010 until 2014 and as the State and Local Tax Client Group Leader from 2009 until 2019. Prior to joining Andersen, in 2004, Ms. Pepin co-founded True Partners Consulting, a tax compliance consulting firm, and served as a founding partner until 2006. Ms. Pepin also worked as a Partner at Deloitte Tax, LLP from 2002 until 2004 and at Arthur Andersen from 1987 until 2002. Ms. Pepin holds a B.S.C. in Accountancy and an M.S.T. in Taxation from DePaul University.

Joseph Karczewski has been with Andersen since 2006 and currently serves as a Managing Director, as a member of Andersen Global’s Board of Directors, and as a member of the boards of directors of MDM and MDI. During his time at Andersen, Mr. Karczewski has held various leadership roles and continues to provide federal tax planning services for private equity firms, private and public companies and families. Prior to joining Andersen, Mr. Karczewski served as a Tax Partner at KPMG LLP from 2003 until 2006, and between 2002 and 2003, Mr. Karczewski was a principal at Lake Capital LLC, a private equity firm. Mr. Karczewski also held several roles at Arthur Andersen between 1983 and 2002, including as a World Wide Partner starting in 1993 and as the Market Leader for the Chicago Office’s Technology, Media and Communications industry beginning in 2001. Mr. Karczewski holds a B.B.A. in Public Accounting from Loyola University Chicago and a J.D. from DePaul University College of Law.

John R. Joyce has been a member of Andersen Group Inc.'s Board of Directors since July 2025. Mr. Joyce is the former Chief Financial Officer of IBM, where he held various leadership and management positions between 1977 and 2007, including as President of Asia Pacific and Head of Global Services. During his time at IBM, Mr. Joyce was instrumental in the successful reengineering of IBM’s worldwide business. From 2005 until 2010, Mr. Joyce served as Managing Director of Silver Lake Partners, one of the world’s largest technology focused private equity funds, where he was also a member of the firm’s investment committee and a leader of the firm’s value creation team. Between 2010 and 2014, Mr. Joyce was the Chief Financial Officer and Vice Chairman at Silver Spring Networks, Inc., a utility management technology solutions company (acquired by Itron Networked Solutions, Inc.), and from 2014 until 2018, Mr. Joyce was the Chief Financial Officer and Vice Chairman at Kony, Inc., a digital banking development platform provider, prior to its acquisition by Temenos AG. Mr. Joyce has also served on the boards of several public companies, including Gartner, Inc. from 2005 until 2009, Avago Technologies Limited (now Broadcom) from 2005 until 2010, and Hewlett-Packard Company from 2007 until 2011, as well as the boards of private companies, including Globality, Inc., an autonomous sourcing company, since 2015. Mr. Joyce currently serves as the Vice Chairman of IB Acquisition Corp., and as the Executive Chairman at NetX, a global venture capital fund, and as a member of the board of directors of Futureverse, which is a portfolio company of NetX. Mr. Joyce holds a B.S. in Administrative Sciences from Montclair State University and an M.B.A. from Fairleigh Dickinson University.

John F. Nicolai has been a member of Andersen Group Inc.'s Board of Directors since July 2025. Mr. Nicolai is a former Managing Member of Greer Anderson Capital, an investment advisory firm, from 2012 until 2016. Between 1974 and 2011, Mr. Nicolai held various positions at Ernst & Young. While at Ernst & Young, Mr. Nicolai was admitted as a Partner in 1983, served as the Partner in Charge of the International Tax Practice from 1985 until 1994, and as Managing Partner of the San Francisco Office, one of Ernst & Young’s largest offices, between 1995 and 2000. Additionally, Mr. Nicolai also served as the Far East Area Managing Partner of Tax, participating as a leading member of Ernst & Young’s expanding global tax strategy, from 2001 until 2007. Between 2008 and 2009, Mr. Nicolai was the Area Managing Partner, responsible for the integration of the Far East Country Practice, which consisted of efficiently combining the operations, practices and services across countries in the Eastern Hemisphere. Until his departure from Ernst & Young in 2011, Mr. Nicolai served as a consultant for the Far East Area Practice. Mr. Nicolai also has significant experience working as a trustee, including his service on the University of San Francisco (USF) Board of Trustees from 2002 until 2011, and from 2012 until 2022, including as Chairman of the Board of Trustees from 2019 until 2022. Mr. Nicolai currently serves as a trustee emeritus on the Finance Committee and Investment Committee of USF since 2023 and has been a trustee for two private charitable foundations since 2011. Since 2016, Mr. Nicolai has worked as an independent director and trustee of JF Nicolai Consulting, which provides advisory services to family offices and private foundations. Mr. Nicolai holds a B.S. in Accounting from the University of San Francisco.

Ronald L. Olson has been a member of Andersen Group Inc.’s Board of Directors since July 2025. Mr. Olson served as a director of Berkshire Hathaway from 1997 until May 2025. For more than the past five years, he has been a partner in the law firm of Munger, Tolles & Olson LLP. He is also a Trustee of Western Asset Trusts, a Trustee of California Institute of Technology. Mr. Olson was also a director of Provivi, an emerging crop protection company, from 2017 until April 2024, and of Graham Holdings Company from 2003 until May 2017.