Our Team

G100 Network is part of G100 Companies and is led by a core group of recent chief executives and senior advisors to CEOs.

Executive Leadership

Scott Miller, CEO

Scott is the former CEO of both Hyatt Hotels Corporation and United Infrastructure Company. Scott currently sits on the Board of Directors of Snap Inc. and served on the boards of publicly traded AXA Financial, Inc. as well as several private companies, and serves as a special advisor to General Atlantic Partners. Scott is also a member of the boards of the Aspen Community Foundation and The Kravis Leadership Institute.

David Niles, President, G100 Companies and SSA & Company

Previously, David was a partner at Castling Group and manager of GESD/Castling Investors, a $30 million venture fund, a management consultant with Booz, Allen & Hamilton, and Head of Business Development for BMG Direct Marketing, a $1 billion division of Bertelsmann AG. He holds an MBA with distinction from Columbia Business School, and a BA from the University of Virginia. David is the Chairman of the advisory board of the Deming Center for Quality and Competitiveness at Columbia Business School.

Daniel Casse, President, G100

Daniel has been an advisor to CEOs and their companies for more than 15 years. He has coached CEOs on critical decisions, trained dozens of senior leaders on positioning their business, and drafted hundreds of high-stakes speeches, articles, and white papers on behalf of clients. He has led discussions with more than 100 CEOs, including Jack Welch, Henry Kravis, Barry Diller, A.G. Lafley, Ken Griffin, and Salman Khan.

Kendall Crolius, President, G100 Next Generation Leadership and G100 Talent Consortium

Kendall has extensive experience with global chief executives. She was General Manager of Forbes Conferences Group for five years, producing CEO conferences in the Americas, Europe, Asia, and the Middle East. Prior to that, she led global accounts at advertising agencies J. Walter Thompson and McCann Erickson.

Ellen Grasso, Managing Director, G100 Women’s Leadership Acceleration, G100 Network
Ellen joined G100 Network to spearhead the launch of G100 Women’s Leadership Acceleration. Previously, Ellen was Global Director of Event Programming at the Milken Institute, and prior to that, served as Executive Producer of the Forbes Women’s Summit and Vice President of ForbesWoman, an online platform dedicated to the advancement of women in business and leadership. Ellen holds both a BA and MA from the City University of New York.

Matt Haggenmiller, Managing Director, G100 BoardExcellence
Matt co-leads the G100 BoardExcellence program. Prior to joining G100 Network, Matt led the global education services investment banking practice at Bank of America Merrill Lynch and founded an independent advisory firm. Matt holds an MBA from Duke University’s Fuqua School of Business and a BS from UCLA.

Matt Tartaglia, Managing Director, Chief Development Officer, G100 Network
Matt oversees new business and retention across G100 Network. Over a 20-year career, Matt has spent time in leadership positions for large global companies and growth stage, venture-backed firms. Most recently, Matt was the Chief Revenue Officer for L2, Inc. Prior, Matt spent 10+ years with Deloitte, most recently as a Senior Managing Director, managing Deloitte relationships with multiple Fortune 250 companies. Matt is a Board Director for Achievement First Brooklyn, a Charter Management Organization overseeing twenty high performing charter schools in Brooklyn, NY.

Mary Thompson, Managing Director, G100 BoardExcellence
Mary co-leads the G100 BoardExcellence program and works on program development for G100. She is a former journalist and spent 16 years as a reporter for CNBC, where she reported extensively on the banking and insurance industries as well as executive compensation. She created, reported, and wrote the ongoing CNBC series, “Where the Jobs Are” and CNBC’s digi-documentary “The Bitcoin Uprising.” Her work appeared on other NBC properties, including NBC Nightly News, The Today Show and, MSNBC. Prior, she worked for Bloomberg Radio and Television, covering the stock market and hosting special coverage of Federal Reserve meetings for Bloomberg TV.

Advisory Board

Les Brun, Senior Advisor, G100 Companies

Les is Chairman and Chief Executive Officer of Sarr Group. Previously, he was a Managing Director and Head of Investor Relations of CCMP Capital Advisors. Les also founded Hamilton Lane, the world’s leading Private Equity advisory and management firm. He is currently Chairman of Broadridge Financial Solutions, Inc. and CDK Global, Inc., Lead Director of Merck & Co., Inc., as well as Chair of the Compensation Committee of Hewlett Packard Enterprise. He serves on the Board of NXT Capital and is a Member of the Council on Foreign Relations. He was formerly Chairman of Automatic Data Processing, Inc.

David Fuente, Chairman Emeritus, G100 Companies

David Fuente is the former chairman and CEO of Office Depot and former president of Sherwin-Williams Paint Stores. In addition to his role as Chairman Emeritus of SSA & Company, he is a Senior Advisor at Peter J. Solomon Company. He formerly served on the boards of Office Depot, Ryder Transportation, Dicks Sporting Goods, Sunrise Senior Living, and Vitamin Shoppe. Dave holds both a BA and MBA from Purdue University.

Deb Henretta, Senior Advisor, G100 Companies

Deb helps companies better use big data and data analytics to drive stronger, sustained results. She served as Global President of e-business at Procter & Gamble, spending seven consecutive years on Fortune’s US and international rankings of the 50 Most Powerful Women in Business. Deb served as Chair of the Asia-Pacific Economic Cooperation (APEC) and is on the Board of Directors at Staples, Inc., Corning Inc., NiSource, and Meritage Homes Corporation, as well as the Board of Trustees for Xavier University and St. Bonaventure University.

Harry McMahon, Senior Advisor

Harry McMahon has been an Investment Banker for substantially all of his career, providing strategic solutions, financial advice, and transaction execution for corporations and institutions worldwide. He has served in many leadership roles during his 32 years at Merrill Lynch, including Executive Vice Chairman of Bank of America Merrill Lynch. He currently serves on the Boards of California Resources Corp., Cottage Health System, Parsons Corporation, and as a Trustee of Claremont McKenna College. He holds a BA and an Honorary Doctorate from Claremont McKenna College and an MBA from University of Chicago.

Stephen Miles, Founder and CEO, The Miles Group

Prior to founding The Miles Group, Stephen was a Vice Chairman at Heidrick & Struggles and ran Leadership Advisory Services. With more than 20 years of experience in assessment, executive coaching, top-level succession planning, organizational effectiveness, and strategy consulting, Stephen specializes in CEO succession and has partnered with numerous boards of global Fortune 500 companies to ensure that successful leadership selection and transition occurs.

Laurie Siegel, Program Chair, G100 Talent Consortium
Laurie Siegel is the President of LAS Advisory Services and the former Chief Human Resources Officer of Tyco International. She currently serves as special advisor to the CEO of Sotheby’s and has provided advisory services to numerous public and private equity portfolio companies. She serves on the boards of CenturyLink, Factset, and Volt Information Sciences, and chairs the compensation committee of all three organizations. Ms. Siegel is a major organizer of G100 Talent Consortium, serves on the “Future of HR” task force and coaches several talented, newly appointed CHROs.

Ron Sugar, Senior Advisor, G100 Companies

Ronald D. Sugar served as Chairman of the Board and Chief Executive Officer of Northrop Grumman from 2003 until 2010. Prior to joining Northrop Grumman, Sugar held senior positions at TRW Inc. and Litton Industries. He is currently a director of Apple Inc., Chevron Corporation, Amgen Inc., Air Lease Corporation and serves as senior advisor to Ares Management LLC, Bain & Co., and Singapore ‘s Temasek sovereign wealth fund. He is a trustee of the University of Southern California, member of UCLA Anderson School of Management board of advisors, and was appointed earlier by the President of the United States to the National Security Telecommunications Advisory Committee. He received BS (summa cum laude), MS, and PhD degrees in engineering from UCLA and was subsequently honored as UCLA Alumnus of the Year.