wbjournal.com | September 7, 2026 | Worcester Business Journal 19
Largest accounting firms
Ranked by number of local staff
Firm
Local staff/
total staff
Local CPAs/
total CPAs
Local offices/
total offices Top executive(s) Year founded
1
AAFCPAs
50 Washington St., Westborough 01581
508-366-9100 • aafcpa.com
290
371
75
101
2
2
Carla M. McCall
managing partner
1973
2
Stowe & Degon LLC
95A Turnpike Road, Westborough 01581
508-983-6700 • stowedegon.com
63
63
28
28
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
17
17
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
31
31
18
18
1
1
Norman Bitsoli
president
1921
5
UHY Advisors
321 Commonwealth Road, Suite 303, Wayland 01778
508-650-1122 • uhy-us.com
28
1,892
18
614
1
40
Ryan Godfrey
managing director
1987
6
Citrin Cooperman
100 Front St., 16th Floor, Worcester 01608
508-757-3311 • citrincooperman.com
24
3,500
8
1,001
1
34
Alan Badey
CEO
1979
7
O'Connor, Maloney & Co. PC
1 Mercantile St., Suite 760, Worcester 01608
508-757-6391 • oconnormaloney.com
20
20
11
11
1
1
Steven A. Thebodo
managing partner
1919
8
CLA (CliftonLarsonAllen)
100 Front St., Worcester 01608
508-713-6900 • claconnect.com/en
17
8,472
9
2,993
1
120
Jill Bosco
office managing principal
1960
9
Alario & Associates PC
75 N. Main St., Leominster 01453
978-534-1999 • alariocpa.com
16
(1)
16 (1)
6 (1)
6 (1)
2
2
Robert C. Alario
president
1954
9
Spinelli CPA PC
146 W. Boylston Drive, Suite 302, Worcester 01606
508-365-6522 • spinellicpa.com
16
16
4
4
2
2
Karen J. Spinelli
founder & CPA
2018
11
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
Bisceglia, Steiman & Fudeman LLP
339 Main St., Suite 110, Worcester 01608
508-799-2491 • bsfcpas.com
8
8
4
4
1
1
Robert H. Thompson
managing partner
1997
12
Griffin & Co. PC
One Cabot Road, Suite 260, Hudson 01749
508-752-8160 • griffincpas.com
8
(1)
8 (1)
4 (1)
4 (1)
1
1
David E. Griffin
James E. Griffin Jr.
co-managing partners
1947
14
The Innovative CPA Group (2)
370 Main St., Suite 750, Worcester 01608
508-754-8512 • innovativecpagroup.com
7
125
3
38
1
9
Paul A. Cerrone
managing partner
2013
15
Smith, Sullivan & Brown PC
80 Flanders Road, Westborough 01581
508-871-7178 • ssbcpa.com
6
15
5
9
1
1
Linda M. Smith
managing partner
1993
16
Zack & Co. PC
5 Commonwealth Road, Natick 01760
508-651-1313 • cpatax.com
3
(1)
3 (1)
1 (1)
2 (1)
1
1
Michael Zack
CPA
1993
17
Yaris Accounting, Consulting & Multiservice
11 Foster St. Suite 303, Worcester 01608
978-265-0967 • yarisaccounting.com
2
N/A
N/A
N/A
1
1
Yarisbeth Guzman
owner
2015
Source: Each firm via survey as of Q2 2026. Note: N/A=not available.
(1) From WBJ's 2025 survey
(2) In December 2025, Cerrone Graham & Shepherd PC merged with Shelton, Conn.-based The Innovative CPA Group.
-Compiled by: Stephanie R. Meagher, research@nebusinessmedia.com
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