Who We Are
TTC was founded by Geoffrey Cone, the Principal and founder of Cone Marshall Limited, an international trusts and estates planning law firm. The Teton Trust Company team has over two decades of experience in establishing, migrating, and administering trusts worldwide.
Jackson Hole, in Wyoming’s Teton County, is one of the wealthiest (and most beautiful) locations in the United States. Over decades, this county has grown a significant financial services industry for resident high net worth families.
With a stable (and business-friendly) state government, no state income taxes, progressive trust laws, and an efficient judiciary experienced in trust issues, Wyoming is the premier trust jurisdiction in the U.S.
Teton Trust Company is pleased to be a Wyoming chartered trust company.
Geoffrey Cone, President
President and Treasurer of the Board of Directors
Prior to forming TTC, Geoffrey Cone founded the law practice Cone Marshall Limited (“Cone Marshall”), then known as Cone and Co., in Auckland, New Zealand in 1998. Cone continues to serve as Principal of Cone Marshall and practices in the area of trust and tax planning.
Cone began practicing commercial litigation as well as tax and trust advisory work in 1980. As Partner and Chairman of Partners at a leading Christchurch law firm, his tenure was marked by cases at all levels of the New Zealand courts as leading counsel and the Privy Council in London.
Later, Cone took his comprehensive litigation and advisory experience and further applied it by serving as a litigator in the British West Indies for two years. Cone graduated from University of Otago, Dunedin, New Zealand with an LLB and honours, and a Post Graduate Diploma in Tax and Trust law with distinction.
Chairman, Board of Directors
David Harris has over 40 years of practical experience in both law and investment banking, specializing in UK private and international business clients, as well as public companies. Early in his career, he practiced law for 12 years and became a partner in the London law firm of Nabarro Nathanson focusing upon taxation and property law.
After leaving Nabarros in 1982 he joined NM Rothschild & Sons Ltd., London investment bankers, where he pioneered the development of the Bank’s international trust business and lead this for the next 26 years. In 1985 he became a Fellow of the Institute of Taxation by thesis on the taxation of private companies.
Since 1987, David has acted as main board director of Rothschilds CEO (and ultimately Chairman) of Rothschild Trust Corporation Limited and sat on the boards of the Group’s Swiss trust companies in Zurich.
During his time at Rothschilds, David developed the Group’s international trust and fiduciary business in Europe, the USA, Latin America, Asia and South Africa.
Member, Board of Directors
Paolo Panico has experience in law and business as the Chairman of Private Trustees SA, an independent and regulated trust company based in Luxembourg. Panico, who speaks eight languages, is qualified as a solicitor in Scotland and as an avocat in Romania, and on such basis is a member of the Luxembourg Bar. He also serves as an adjunct law professor at the University of Luxembourg and the University of Liechtenstein, where he teaches international and comparative trust law.
In May 2016, Panico was appointed Deputy Chair of STEP, Benelux branch, and he had served as Treasurer of the Milan branch from 2006 to 2010. Panico is a member of the International Academy of Estate and Trusts Law (TIAETL), Vice Chairman of the International Tax Planning Association (ITPA), and a member of the Italian Trust Society (Associazione “Il Trust in Italia”) where he served as a council member from 2008 to 2011.
His publications include Private Foundations. Law and Practice (Oxford University Press, 2014) and International Trust Laws (Oxford University Press, 2010; second and entirely revised edition, 2017).
Member, Board of Directors
Douglas Barnes is an attorney and member of the New York Bar. He has a focus on corporate law practice on early-stage companies and technology-related transactions. Before embarking on a career in law, Barnes had a fifteen-year career in the IT field that progressed from developing banking and accounting software to co-founding the security software company C2Net (now part of Red Hat). Prior to launching his own law firm in 2015, Barnes practiced corporate and technology transactions law at Sullivan and Cromwell, Milbank, and Gibson Dunn. Barnes grew up very close to Wyoming, in Fort Collins, Colorado, and maintains close connections to the area. Barnes received his J.D. from the University of Texas School of Law and also has a B.S. in Computer Science from Colorado State University and a B.A. in Humanities from the University of Texas at Austin.
Member, Board of Directors, Company Secretary
Katrina Robinson is responsible for business operations in the U.S., business development, and acting as a liaison with the Cone Marshall group. Robinson is an attorney admitted to practice in New York. She has worked with family offices and private clients. Prior to law school, she worked as a portfolio manager with an international wealth management team at the Royal Bank of Canada in New York City. Originally from Kingston, Jamaica, she is a graduate of Princeton University, University of Cambridge and Cardozo School of Law. She speaks Spanish and Portuguese.
Martin has worked with the Cone Marshall group since 2013, and most recently transferred to TTC, in March 2018. Previously, he was Director at Cone Marshall’s office in Geneva, involved in wealth planning matters, including trusts and estate. Originally from Argentina, Martin graduated from law school at the University of Buenos Aires, and further studied trusts law in New Zealand where he became a member of the Society of Estate and Trusts Practitioners. In June 2017, he finished a two-year program LLM in International Tax at the Vienna University of Economics and Business. Martin speaks Spanish, Italian, and English with native proficiency.
Ivar Brock-Utne joined TTC as an In-House Accountant. He is an active CPA in Wyoming with significant experience in bookkeeping, taxes, and financial modeling. Ivar holds a Master of Accounting degree from the University of Southern California and a Bachelor of Science in Economics from Saint Mary’s College of California.
Brynn Powell joined TTC as an Administrative Officer. Brynn holds a Master of French Studies from the University of Wisconsin-Madison, and a Bachelor of Arts in French from Skidmore College. Given her advanced studies, and having spent significant time in France, she is fluent in French.
Prior to joining Teton Trust Company as an Administrative Assistant, Mattie Hagerty worked in Marketing and Operations. She holds a Bachelor of Arts in Literature from Sarah Lawrence College.