About the Firm

Founded in 1974 in the historic district of Newburyport, Massachusetts. ADC began as a small homegrown firm, with the goal of accommodating local citizens and businesses of the North Shore. We have since expanded and now have clients in over 35 states across the US. Our staff includes accounting experts, each with their own unique area of focus to meet your everchanging needs.

Led by Principal and President Keith Congdon’s vision and commitment to creating a CPA firm for today’s economy, in 2017, ADC purchased Moker CPA. A CPA firm specializing in accounting for government grant and contracts awardees. The acquisition doubled the size of the firm, which gave us the ability to better serve our clients.

Fast forward to today, our firm specializes in commercial and government clients of all shapes and sizes. Ambrosi Donahue Congdon takes a personalized approach to its audit, bookkeeping, tax and financial consulting services.

 
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Our mission is to provide proactive, one-on-one service to every client, whether you are an individual, the owner of an S or C corporation, or a director of a nonprofit organization.  We believe in a simple, balanced approach that not only helps you to mitigate risk and exposure but one that also uncovers ways to achieve your financial goals.  We proactively look for opportunities to solve problems, add value and provide creative strategies.

Each member of our team personifies this commitment.  They are experts at what they do, combining extensive accounting knowledge with the latest in auditing and accounting technology. And of course, they are proficient in the latest federal, state and international tax regulations and developments.

Most importantly, we are advocates for you when you need us most.  Through audits, litigation and business transitions, when you need us by your side, we’ll be there.[/vc_column]

Leadership

Keith Congdon CPA

Keith Congdon CPA

President
With over 30 years of extensive experience in both private industry and public accounting, Keith currently provides tax, accounting, and auditing services for closely-held businesses and their shareholders, primarily in manufacturing, technology and service industries. … Read Full Bio >
George G. Moker EdD, CPA, MBA

George G. Moker EdD, CPA, MBA

Managing Director, Director of Government Contracting & Business Development
George Moker has more than 25 years’ experience as a CPA. He has developed training manuals, workshops, and seminars in the record-keeping and reporting compliance areas of government contracting … Read Full Bio >
Robert Poirier CPA

Robert Poirier CPA

Senior Director
Robert provides quality assurance in our tax compliance and assurance services department, and has been with Ambrosi Donahue Congdon since October 2001. Robert gained a wealth of experience and knowledge working with several local CPA firms, before joining Ambrosi Donahue Congdon … Read Full Bio >
Raymond E. Jeffs

Raymond E. Jeffs

Director
Raymond E. Jeffs, CPA is one of the area’s most respected accounting and financial services firms. The firm serves clients from its office in Hampton, New Hampshire with a strong commitment to service and client satisfaction which sets it apart from its competitors. Raymond E. Jeffs, CPA has built a reputation for consistently delivering quality products and services to its business and individual clients … Read Full Bio >
Anthony Rita CPA

Anthony Rita CPA

Director – Commercial Services Practice Leader
Anthony brings over 20 years of combined experience in the areas of corporate accounting, auditing, and tax. Prior to joining ADC, Anthony was an audit manager in the Boston office of Grant Thornton, LLP, where he led audit engagements in the commercial practice. Anthony started his career with Ernst & Young, LLP, in Boston … Read Full Bio >