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wbjournal.com | Book of Lists 2025 | Worcester Business Journal 23 P R O F E S S I O N A L S E R V I C E S F O C U S Largest accounting firms Ranked by number of local staff Firm Local staff/ total staff Local CPAs/ total CPAs Local offices/ total offices Managing partner(s) Year founded 1 AAFCPAs 50 Washington St., Westborough 01581 508-366-9100 • aafcpa.com 193 367 52 97 1 2 Carla M. McCall managing partner 1973 2 Stowe & Degon LLC 95A Turnpike Road, Westborough 01581 508-983-6700 • stowedegon.com 52 52 24 24 1 1 Michael D. Stowe David C. Degon co-managing partners 1997 3 Bollus Lynch LLP 89 Shrewsbury St., Worcester 01604 508-755-7107 • bolluslynch.com 36 36 18 18 1 1 Michael J. Bollus managing partner 1989 4 Greenberg, Rosenblatt, Kull & Bitsoli PC 306 Main St., Suite 400, Worcester 01608 508-791-0901 • grkb.com 33 33 19 19 1 1 Norman Bitsoli president 1921 5 Citrin Cooperman (1) 100 Front St., 16th Floor, Worcester 01608 508-757-3311 • citrincooperman.com 30 3,027 13 919 1 28 Alan Badey CEO 1979 6 UHY Advisors (2) 14 W. Plain St., Wayland 01778 508-650-1122 • uhy-us.com 28 1,892 17 614 1 40 Michael Okenquist David Lorenzi office managing partners 1987 7 McLaren & Associates CPAs PC 385 South St., Shrewsbury 01545 508-842-0459 • dmclarencpa.com 26 27 3 3 1 2 David Scott McLaren founder & managing partner 2005 8 O'Connor, Maloney & Co. PC 1 Mercantile St., Suite 760, Worcester 01608 508-757-6391 • oconnormaloney.com 19 19 11 11 1 1 Steven A. Thebodo managing partner 1919 9 CLA (CliftonLarsonAllen) 100 Front St., Worcester 01608 508-713-6900 • claconnect.com 17 8,299 9 3,036 1 130 Jill Bosco managing principal office 1960 10 Alario & Associates PC 75 N. Main St., Leominster 01453 978-534-1999 • alariocpa.com 16 16 6 6 2 2 Robert C. Alario president 1954 10 Spinelli CPA PC 146 W. Boylston Drive, Suite 302, Worcester 01606 508-365-6522 • spinellicpa.com 16 16 5 5 2 2 Karen J. Spinelli founder & CPA 2018 12 Reagan & Co. PC 98 Adams St., Suite 101, Leominster 01453 978-534-4095 • reaganandcompany.com 15 15 8 8 1 1 Darlene M. Murphy president 1950 12 Smith, Sullivan & Brown PC 80 Flanders Road, Westborough 01581 508-871-7178 • ssbcpa.com 15 21 8 12 1 1 Linda M. Smith managing partner (3) Juliana Caruso principal 1993 14 Cerrone Graham & Shepherd PC 370 Main St., Suite 750, Worcester 01608 508-754-8512 • cgscpas.com 12 12 4 4 1 1 Paul A. Cerrone managing partner 2013 15 Bisceglia, Steiman & Fudeman LLP 339 Main St., Suite 110, Worcester 01608 508-799-2491 • bsfcpas.com 10 10 4 4 2 2 Robert H. Thompson managing partner 1997 16 Griffin & Co. PC One Cabot Road, Suite 260, Hudson 01749 508-752-8160 • griffincpas.com 8 8 4 4 1 1 David E. Griffin James E. Griffin Jr. co-managing partners 1947 17 Zack & Co. PC 5 Commonwealth Road, Natick 01760 508-651-1313 • cpatax.com 3 4 1 2 1 1 Michael Zack CPA 1993 Source: Each firm via survey as of Q2 2025. Notes: N/A=not available. Unable to confirm data by press time for Worcester's Jaffe, Yaffe & Feingold PC or Framingham's Sanchez and Santiago CPAs. (1) S&G LLP was acquired by New York-based Citrin Cooperman Advisors in July 2024. (2) Paresky Flitt & Co. LLP was acquired by Connecticut-based UHY in January. (3) Additional leadership includes partners Sandy Brown and Maureen Sullivan. -Compiled by: Stephanie R. Meagher, research@nebusinessmedia.com