Martin J. Geller, Founder and President

Martin is the Founder and President of Geller & Company. Since founding the firm in 1984, Martin leads the team that services large multi-national clients with a comprehensive range of financial services, including strategic CFO consulting, financial reporting and accounting, tax advisory, investment management, information technology and integrated wealth management. Martin is active in the […]

Patti Roskill, Partner

Patti is a Partner of Geller & Company and is primarily responsible for oversight of our largest account, a multi-billion dollar corporation with operations in over 80 countries. She has over thirty years of experience and focuses on corporate finance, including accounting, financial planning, analytics and reporting, treasury, compensation and tax services of our corporate clients. […]

Diane Gubelli, Partner

Diane is a Partner of Geller & Company and co-heads the Family Office practice. She is also primarily responsible for oversight of the largest client in that group which consists of multiple entities in the philanthropy and investment areas. Diane has over thirty years of experience working with the personal financial needs of high net […]

Steve Goldberg, Partner and Managing Director

Steve serves as Head of Tax Services at Geller & Company and Geller Family Office Services. He has over thirty years of experience in the tax services industry, focusing on advising public and privately held companies on an extensive range of global business issues. He has a deep understanding of the technical and complex tax […]

Hayden Horowitz, Partner and Chief Operating Officer

Hayden is a Partner at Geller & Company, reporting directly to the firm’s Chief Executive Officer. He serves as the Chief Operating Officer for the firm, leads the multi-family office practice and heads the firm’s Real Estate Solutions Group.  He is a member of the firm’s Management Committee and Operating Committee. Hayden assumed his leadership […]

Michael Barton, Chief Financial Officer

As the Chief Financial Officer for Geller & Company, Michael manages all aspects of the Finance and Accounting function, including business planning and budgeting, financial analysis, month and year-end closes, management and operational reporting, pricing and external relations with banks, auditors and insurers. Michael’s primary objectives are to promote financial and operational strength while minimizing […]

Anthony Sirabella, Chief Information Officer

Anthony serves as the Chief Information Officer of Geller Family Office Services, supporting the technological growth of the firm while maintaining high levels of confidentiality, privacy, security, disaster recovery and regulatory compliance. Anthony partners with business units and clients to solution streamlined infrastructure and application development. He is responsible for developing and carrying out IT […]