TIGER 21 CEO and leadership

Greg Wells joined TIGER 21 in early 2015 as Chief of Field Operations. In this role, Mr. Wells is responsible for the strategy, development and leadership of TIGER 21’s field-based personnel, which includes Group Chairs and Membership Executives throughout North America. Having spent seven years at Vistage International as a member of the Executive Team and co-founding Sage Executive Group - a boutique high-end peer advisory organization in Southern California, Mr. Wells has extensive experience in leading and growing peer-to-peer advisory organizations. Mr. Wells also leads a group of M.B.A. students in a peer group program that connects them with CEOs as part of the Executive Leadership program at the UCLA Anderson School of Business. Mr. Wells has extensive business and entrepreneurial experience from prior roles as CEO of a business finance company and as Senior Vice President and Division Manager of Southern California Business Banking for Wells Fargo. He is the founder of an event company that partners with a prominent Division 1 football program and is on the board of Big Fogg and Monrovia Growers. A Southern California native, Mr. Wells is a graduate of the University of Oregon as well as the Pacific Coast School of Banking at the University of Washington, and the Graduate School of Credit and Financial Management program held at Dartmouth College.

Joel is the founder of From Wealth to Wisdom, a consulting/coaching firm working with high net worth individuals, families, and family firms. He was NYC Group Chair with TIGER 21 from 2007 to 2018, when he left to pursue a full-time Masters degree in Applied Positive Psychology from the University of Pennsylvania (completion July 2019).

Joel's areas of expertise include: the psychology of wealth, human flourishing, family dynamics, individual and organization coaching, group process facilitation, philanthropy, and leadership coaching. He integrates insights about human flourishing and living \'the good life\' into his work with high net worth families, successful entrepreneurs, businesses and not-for-profit organizations. Joel's signature strengths are: appreciation of beauty/excellence, creativity, curiosity, gratitude, humor, love, zest, and social intelligence. To learn about your signature strengths and how to make the most of them, go to: http://joeltreisman.pro.viasurvey.org.

Lisa Holladay is a Chief Experience Officer at TIGER 21 and is based in New York City, New York. She has worked as Vice President, Global Brand Marketing at The Ritz Carlton Hotel Company L.L.C.; Regional Marketing Manager at Mercedes Benz USA; and Global Brand Leader, The Ritz-Carlton & St. Regis Hotels & Resorts at Marriott International. Lisa attended Clemson University and Georgetown University.

Wendy Gartenberg joined TIGER 21 in 2012 and currently serves as Chief Financial Officer. Ms. Gartenberg has over 25 years of extensive finance and accounting experience in various industry sectors and she has had much success in the design and implementation of strategies to strengthen financial controls and promote sound financial decision making. She is a Mathematician with a passion for financial analysis, budgeting and financial modeling. Over the past four years, Ms. Gartenberg has overseen the largest revenue growth in TIGER 21’s history. Before joining TIGER 21, Ms. Gartenberg worked as Corporate Controller for seven years at Marie Chantal LLC, a United Kingdom-based wholesale, retail and e-commerce company. Ms. Gartenberg also served as Cooperative Auditor and then Food and Beverage Controller during her 10 year tenure at the Four Seasons Hotel chain in New York. Ms. Gartenberg earned a B.S. degree from George Washington University.

Joel is the founder of From Wealth to Wisdom, a consulting/coaching firm working with high net worth individuals, families, and family firms. He was NYC Group Chair with TIGER 21 from 2007 to 2018, when he left to pursue a full-time Masters degree in Applied Positive Psychology from the University of Pennsylvania (completion July 2019).

Joel's areas of expertise include: the psychology of wealth, human flourishing, family dynamics, individual and organization coaching, group process facilitation, philanthropy, and leadership coaching. He integrates insights about human flourishing and living \'the good life\' into his work with high net worth families, successful entrepreneurs, businesses and not-for-profit organizations. Joel's signature strengths are: appreciation of beauty/excellence, creativity, curiosity, gratitude, humor, love, zest, and social intelligence. To learn about your signature strengths and how to make the most of them, go to: http://joeltreisman.pro.viasurvey.org.