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William Tarzia, CPA





Direct Dial: 617 658-5241
Fax: 617 641-0090

Areas of Expertise

Healthcare, Manufacturing, Technology, Clean Energy, Life Sciences, Accounting & Auditing, Employee Benefit Assurance Services


General Experience Highlights

As an audit partner in our Newton office, Bill has 23 years of experience working with public and private entities, including several with international operations. Additionally, Bill has employee benefit plan experience which includes audits of defined contribution retirement plans, defined benefit pension plans, employee stock ownership plans and health & welfare benefit plans.

Bill has extensive experience providing public companies with second accounting firm services such as advising on non-recurring complex accounting issues, new accounting standards implementation, due diligence and SEC filing reviews.

Bill was also elected to the Worcester Business Journal’s Top 40 Under Forty list, an award that recognizes professionals who are at “the top of their game” and have a demonstrated record of success.

Prior to joining BlumShapiro in 2017, Bill worked for Grant Thornton LLP.

Professional Education

  • Bentley University - Bachelor of Science in Accounting

Professional Organizations and Activities


Advisors | Auditors | Consultants | CPAs - Blum Shapiro is one of the premier public accounting firms in the northeast and a Top 100 CPA Firm in the U.S. Our professionals serve businesses, individuals and organizations in Boston (MA), Hartford (CT), Cranston (RI), Shelton (CT) ,Quincy (MA) and Newton (MA) with audit, tax and business consulting services. Our firm has developed practice areas in automotive, construction, education, government, healthcare, hospitality, manufacturing, nonprofit organizations and professional service firms. New Haven CT, Fairfield CT, Norwalk CT, Waterbury CT.