Issue link: https://nebusinessmedia.uberflip.com/i/1545351
V O L . X X X I I N O. X I I I J U N E 1 5 , 2 0 2 6 30 T H E L I S T C O M P I L E D B Y S T E P H A N I E M E A G H E R C O M P I L E D B Y S T E P H A N I E M E A G H E R FACT BOOK DOI N G B U S I N E S S I N MAI N E $19.95 September 1, 2025 VO L . X X X I N O. X I X www.mainebiz.biz S P O N S O R E D B Y P H O T O S / T I M G R E E N WAY FACT BOOK DOI N G B U S I N E S S I N MAI N E $19.95 September 1, 2025 VO L . X X X I N O. X I X www.mainebiz.biz For companies in Maine or who are looking to relocate or expand into Maine, the Fact Book is a great resource on Maine market statistics and facts. Your Resource and Guide For Doing Business in Maine INTERESTED IN ADVERTISING, PROFILES, OR SPONSORSHIP? ADVERTISING@MAINEBIZ.BIZ SP ONSORED BY 1 Revenue as of Dec. 31, 2025 or most recent fiscal year for which data is available at press time 2 For fiscal year ended June 30, 2025 3 For fiscal year ended May 31, 2025 4 Lead partner, Augusta 5 Lead partner, South Portland 6 Formerly the Swanson Group 7 Services include financial statement reviews and compilations. N O T E : View the full list at mainebiz.biz/ data/account/. S O U R C E : Each firm via survey Access this list and more at mainebiz.biz/data @ Maine's largest accounting firms Ranked by 2025 revenue Maine's largest accounting firms Ranked by 2025 revenue Key services Firm Maine-based revenue (000,000) 1 Maine CPAs/ Maine partners/ Maine staff Maine offices Tax planning & preparation Trusts & estates Audit Business advisory IT consulting Wealth management Staff augmentation Bookkeeping Head of firm/ year founded 1 BerryDunn 2211 Congress St., Portland 04102 541-2200 • berrydunn.com $ 129.9 2 56 43 371 2 • • • • • • Sarah L. Belliveau CEO 1974 2 Baker Newman Noyes 280 Fore St., Portland 04101 879-2100 • bnncpa.com $ 38.9 52 22 141 1 • • • • • • • Darren Hurlburt president & CFO 1995 3 Wipfli 30 Long Creek Drive, South Portland 04106 774-5701 • wipfli.com $ 19.2 3 20 8 62 2 • • • • • • • • Robert P. Dube Jr. 4 Christian A. Smith 5 partners 1930 4 Albin, Randall & Bennett 27 Pearl St., 4th Floor, Portland 04101 772-1981 • arbcpa.com $ 18.7 32 10 74 1 • • • • Laura Everett managing partner 1989 5 Purdy Powers & Co. 130 Middle St., 4th Floor, Portland 04101 775-3496 • purdypowers.com $ 10.9 16 7 43 1 • • • • • Lucas Caron managing shareholder 1991 6 CBIZ 200 Middle St., Suite 401 , Portland 04101 352-7600 • cbiz.com $ 8.2 8 7 24 2 • • • • • • • • Douglas Farrington office managing director 1987 7 Otis Atwell 324 Gannett Drive, South Portland 04106 780-1100 • otisatwell.com $ 8 15 5 35 1 • • • Bridget Sylvester managing partner 1974 8 Ouellette & Associates PA 1111 Lisbon St., Lewiston 04240 786-0328 • oacpas.net $ 5.9 11 6 25 1 • • • • • • Mark R. Carrier president 1979 9 One River CPAs 46 First Park Drive, Oakland 04963 873-1603 • onerivercpas.com $ 5.8 15 4 28 3 • • • • • Alison Lorenz president 1994 10 TSG Your Trusted Accountant 6 838 Main St., Westbrook 04092 370-3490 • yourtrustedaccountant.com $ 5.1 9 1 29 1 • • • • • Tabitha Curit Swanson CEO 2011 11 Runyon Kersteen Ouellette 20 Long Creek Drive, South Portland 04106 773-2986 • rko-cpas.com $ 4.8 12 7 22 1 • • • • • Amy L Chasse managing principal 1979 12 Austin Associates PA 7 Two Great Falls Plaza, 5th Floor, Auburn 04210 783-9111 • austinpa.com $ 4.7 13 5 34 2 • • • • Philip J. Doucette managing partner 1950 SOURCE: Each firm via survey NOTE: View the full list at mainebiz.biz/data/account/. 1 Revenue as of Dec. 31, 2025 or most recent fiscal year for which data is available at press time 2 For fiscal year ended June 30, 2025 3 For fiscal year ended May 31, 2025 4 Lead partner, Augusta 5 Lead partner, South Portland 6 Formerly the Swanson Group 7 Services include financial statement reviews and compilations. - This list was compiled by Stephanie R. Meagher and published in the June 15, 2026, issue of Mainebiz. KEY SERVICES KEY SERVICES