Hayden Horowitz

Partner, Geller & Company and Managing Director, G Client Services

Hayden is a Partner at Geller & Company and Managing Director at G Client Services LLC, a subsidiary. Currently, Hayden co-leads a team within the Geller & Company family of companies serving the personal and philanthropic needs of the firm’s largest client. He was formerly the Chief Executive Officer and Chief Operating Officer for Geller Advisors, the firm’s Registered Investment Advisor, and led the firm’s real estate initiatives.

In his leadership roles for Geller Advisors, Hayden was responsible for all aspects of the multi-family office business, including strategy development, client service, and operations management. During his tenure, the firm adopted a new strategic plan, made key investments in people and technology, and expanded its geographic footprint.

As the Head of the Real Estate Solutions Group, Hayden led a team of professionals dedicated to serving clients with a comprehensive range of real estate planning, management and operational needs spanning investment and construction, as well acquisitions and divestitures. His responsibilities included serving as Chief Financial Officer and a member of the steering committee for a very large international corporate development project, and a comparable role for a domestic cultural institution.

More recently, Hayden served as Treasurer for Michael Bloomberg’s 2020 presidential campaign. Prior political finance roles included serving as the Chief Financial Officer for New York City’s Host Committee for the 2004 Republican National Convention and as the Chief Financial Officer and Chief Administrative Officer for Michael Bloomberg’s 2005 mayoral re-election campaign.

Earlier in his career, Hayden was the Chief Financial Officer of Highstar Capital LP, an infrastructure-focused private equity firm with over $6 billion AUM. In addition, he held positions in Citigroup’s Investment Banking Division and at the U.S. Department of Justice, Antitrust Division in the Telecommunications Task Force reviewing telecom mergers. Hayden graduated with a Bachelor of Arts and Honors in History from the University of Pennsylvania, and earned a Juris Doctor and Master of Business Administration from Columbia University.