Our Team

John W. Maher, CPA, CGMA

Before founding Maher Accountancy, John began his career in 1978 with Arthur Young & Company (now Ernst & Young) and worked in tax, management consulting and audit departments. John is the managing principal of Maher Accountancy, serves on the Board of Marin Economic Forum, is a member of the American Institute and California Society of CPAs and is qualified as an auditor under Government Auditing Standards issued by the Comptroller General of the United States.

John’s primary focus is to help organizations and individuals accomplish their missions through accountability. This includes (a) designing and implementing processes to safeguard financial and other resources so they are most effectively used to accomplish the organizational objectives and (b) audit and other attestation services regarding financial reporting, grant and other compliance requirements.

jmaher@mahercpa.com  415.459.1249 x 1



David A. Greenblat, CPA, MS Taxation

David Greenblat began his public accounting career in 1980 and joined Maher Accountancy in 1989.   David hold a Masters in Taxation degree from Golden Gate University and manages the firm's tax compliance division with particular expertise in real estate matters.   He also serves as financial audit manager, focusing primarily on local government entities and is qualified under Government Auditing Standards issued by the Comptroller General of the United States and is a member of the American Institute and California Society of CPAs.   

dgreenblat@mahercpa.com  415.459.1249 x 2



Michael J. Maher, CPA

Michael started with Maher Accountancy in 2010 and assists the tax division and serves as client services manager for our local government outsourced accounting department.  After serving in the United States Army, Mike attended Chico State University and received a degree in economics. 

In addition to his responsibilities to our audit and tax clients, Mike heads Maher Accountancy's Energy Industry practice.

mmaher@mahercpa.com  415.459.1249 x 4



Judy O. Henley, Certified QuickBooks Consultant

Judy joined Maher Accountancy in 1989 and manages accounting services for the medical, retail and not-for-profit industries.  Judy is qualified to provide consulting services for QuickBooks accounting software and Bill.com, a cloud-based accounts payment and billing system. 

jhenley@mahercpa.com  415.459.1249 x 3