Robert O. Mayer CPA

Chief Revenue Officer | New York-Long Island

Professional Experience

Robert O. Mayer is a Partner of Prager Metis CPAs, a member of Prager Metis International. He also serves as Chief Revenue Officer. Mr. Mayer has over forty years of experience in the accounting profession. 

Mr. Mayer’s entrepreneurial spirit and innovative growth strategies are among the many assets that he provides to his clients. In 1978, Mr. Mayer started his accounting career joining an accounting firm as its second staff person and helped the firm grow to 40 employees within five years. Mr. Mayer went on to be the chief financial officer for a Long Island company; he helped that company expand from one location to five, and increase sales from $12 million to $60 million over five years.

Mr. Mayer has been included in Long Island Business News’ “Who’s Who in Accounting” and was recognized by the publication in 2010 as among Long Island’s highest achieving “50 Around 50.”

Prior to joining Prager Metis, Mr. Mayer was the managing partner of Mayer CPAs LLP, who merged in with Prager Metis in 2016. 

Professional Affiliations

  • American Institute of Certified Public Accountants
  • New York State Society of Certified Public Accountants
  • National Conference of CPA Practitioners 

Civic Affiliations

  • Corporate Committee of the Nassau County Museum of Art
  • Hofstra Business School Advisory Board
  • U.S. Trust Advisory Board
  • Sterling National Bank Advisory Board of Long Island
  • Alzheimer's Association - Long Island Chapter - Advisory Board Member 


  • BA, Accounting Hofstra University, New York  


Prager Metis’ Robert Mayer Named Chief Revenue Officer

New York Real Estate Journal as "Executive of the Month" - April, 2016

Beyond the Numbers

Partnering with Businesses - Boutique Style 

Helping Businesses Adapt to Change

Company Expands with New Divisions, M&As

Newsday 'People on the Move' - July 2013

Reshaping the Way Accountants Work with Real Estate Businesses

NYREJ Q&A with Robert Mayer

How do I Select the Right Accounting Firm for my Real Estate Business? 



Robert O. Mayer
516.921.8900 / Ext. 10510
Email Robert