Chelmsford, MA Office:
978-453-2222

Concord, NH Office:
603-224-4990

About Us

To meet the needs of our clients, McLarney and Co., LLC was established as a NH and MA CPA firm to provide accounting, tax, and business advisor services to corporations, small businesses and individuals throughout the Concord and Chelmsford areas. Recognizing that each client has unique goals, we tailor our services to meet your specific needs. To better meet the needs of our clients, we have individualized services for clients in industries like individuals, construction accounting, financial services accounting, professional services and various consumer services. These individualized services have enabled us to address their industry specific challenges, compliance needs and standard tax practices.


Brian F. McLarney, CPA/PFS, MBA

Brian is the president of McLarney & Company, LLC. Brian earned a Masters in Business Administration from Babson College and was awarded a Bachelor of Science in Accountancy from Bentley College. Brian specializes in providing our clients financial management, financial services, estate planning, and tax related counsel. He has obtained various security licenses, including being a Registered Investment Advisor and has earned the designation of Personal Financial Specialist. Before founding the accounting firm, he worked for the "big five" accounting firm of Coopers & Lybrand, which has the largest base of clients in the New England area.

Brian is an Adjunct Professor of Accountancy at Bentley College and a member of the AICPA and the Massachusetts & New Hampshire Society of CPA's. He has over fifteen years of experience in this Accountancy and taxation industry.


Shawn R. Tewksbury, CPA, CFP

Shawn earned a Bachelor of Science in Accountancy from Pennsylvania State University in May 1993. He has been working in public accounting since graduating from college. Shawn started with the firm in June of 1994. In February 1996, he was granted his CPA license from the State of New Hampshire. In January 2000, he received his license as a Certified Financial Planner (CFP). Shawn specializes in providing our clients with investment management, financial and estate planning, tax related counsel, and software consulting. Shawn is also an active member of the AICPA and the New Hampshire Society of CPA's.


Robert F. Siggens III, CPA, MST

Robert earned a Bachelor of Science in Accountancy from the University of Massachusetts, at Lowell. He has been employed with the firm since graduating from college in 1991, and was granted a CPA license by the Commonwealth of Massachusetts. In May 2000, he earned his Masters in Taxation from Bentley College. He is also a member of the AICPA and the Massachusetts Society of CPA's.


James O. Nash, CPA

James earned a Master of Science in Accounting from New Hampshire College in March of 1996 and was awarded a Bachelors of Science in Business Administration from Northeastern University. James has been employed with the firm since February of 1998. In June 2001, he was granted his CPA license from the State of New Hampshire. He is also a member of the AICPA and the New Hampshire Society of CPA's.