Sean R. O’Brien, CPA

Sean-OBrien Sean R. O’Brien, CPA  Sean R. O’Brien (Sean), a partner at O’Brien, Riley, & Ryan, has been in the practice of public accounting for over twenty years. In addition to his traditional financial, tax, and accounting experience, he is responsible for the information technology needs of the practice.

Sean is also a QuickBooks ProAdvisor®.

Professional Background

Sean’s diverse client base includes small- to mid-sized organizations requiring financial statement preparation and analysis, tax planning and return preparation, accounting support, and assistance with special projects. His experience includes operations analysis, cash flow planning, budgets, forecasts, and personalized support of his client’s short- and long-term objectives.

Further, he has established a service niche within the business information technology sector. Sean has experience with networking systems installation and troubleshooting, software evaluation and selection, system upgrades and accounting system installation.

In addition to his role as a financial and tax professional, he acts as the information technology advisor for many clients.

Education & Associations

Sean received a Bachelor of Science degree in Accounting from Bentley College, and is a member of the American Institute of Certified Public Accountants (AICPA), and the Massachusetts Society of Certified Public Accountants.

Contact Information

Email Sean O’Brien
781-410-2300