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2026 BOOK OF LISTS | HARTFORDBUSINESS.COM 61 P R O F E S S I O N A L S E R V I C E S LARGEST ACCOUNTING FIRMS IN GREATER HARTFORD Ranked by number of CPAs in Greater Hartford Ranked by number of CP As in Gr eater Hartford Practice areas Firm Local CPAs/ local employees CT CPAs/ CT employees Tax planning & prep Trusts & estates Audit Business advisory Bookkeeping Staff augmentation IT consulting Wealth management Other services Managing partner(s)/ year founded 1 Deloitte LLP and subsidiaries 185 Asylum St., Hartford 06103 860-725-3000 • deloitte.com 98 383 316 1,367 • • • • Financial advisory and consulting Richard Tavolieri 1895 2 Whittlesey 280 Trumbull St., 24th Floor, Hartford 06103 860-522-3111 • wadvising.com 75 170 75 170 • • • • • • • Drew Andrews 1961 3 CLA (CliftonLarsonAllen LLP) 29 South Main St., 4th Floor, West Hartford 06107 860-561-4000 • claconnect.com 74 199 87 240 • • • • • • • • Investment advisory services through CliftonLarsonAllen Wealth Advisors LLC, an SEC-registered investment advisor Tim Warren 1953 4 CohnReznick 350 Church St., 12th Floor, Hartford 06103 959-200-7000 • cohnreznick.com 72 210 84 244 • • • • • • • • For Melissa Ferrucci 1919 5 Ernst & Young LLP (1) 20 Church St., Hartford 06103 860-247-3100 • ey.com 59 262 170 663 Due diligence, risk advisory Sean Riegler 1918 6 KPMG LLP 755 Main St., Hartford 06103 860-522-3200 • kpmg.com 55 240 115 711 • • • • Susan Jackson 1897 7 CBIZ 185 Asylum St., 25th Floor, Hartford 06103 860-760-0600 • cbiz.com 54 95 128 305 • • • • • • • • Michael K. Brooder 1954 8 Fiondella, Milone & LaSaracina LLP | FML CPAs 300 Winding Brook Drive, Glastonbury 06033 860-657-3651 • fmlcpas.com 40 110 42 133 • • • • • Jeff Fiondella 2002 9 Mahoney Sabol & Co. LLP 180 Glastonbury Blvd., Suite 400, Glastonbury 06033 860-541-2000 • mahoneysabol.com 32 65 32 65 • • • • • • James M. Mahoney 1990 10 RSM US LLP 225 Asylum St., 23r , Hartford 06103 959-666-3400 • rsmus.com 27 91 69 364 • • • • • • • • Susan Martinelli 1926 11 Grant Thornton 90 State House Square, 10th Floor, Hartford 06103 860-781-6700 • grantthornton.com 24 65 24 65 • • • • • • Jeffrey Strassman 1924 12 UHY 6 Executive Drive, Suite 111, Farmington 06032 860-676-9020 • uhy-us.com 20 30 20 32 • • • • • • John Salemi Steve Moulton 2000 13 Crowe LLP 62 Memorial Road, Suite 100, West Hartford 06107 860-678-9200 • crowe.com 16 32 16 32 • • • • Applied technology Joe Pieksza 1999 (2) 14 PC 314 Farmington Ave., Farmington 06032 860-677-9188 • 15 40 15 40 • • • • • Todd Shelansky 1979 15 Guilmartin, DiPiro & Sokolowski LLC 505 Main St., Middletown 06457 860-347-5689 • gdscpas.com 14 27 14 27 • • • • • Christopher Conley Teresa Opalacz Rick Morin Michael Kovaleski Dylan Stumpf 1972 16 Gitlin & Co. LLC (3) 836 Farmington Ave., Suite 221, West Hartford 06119 860-236-5833 • gc-cpas.com 14 26 14 26 • • • • • Salvatore Giuliano 1952 17 Nicola, Yester & Co. PC (4) 223 Eastern Blvd., Glastonbury 06033 860-633-1194 • nicola-yester.com 13 25 13 25 • • • • • Steven V. Prigionieri 1986 18 PKF O'Connor Davies 13 66 Kevin J. Keane 10 RSM US LLP 225 Asylum St., 23r , Hartford 06103 959-666-3400 • rsmus.com 27 91 69 364 • • • • • • • • Susan Martinelli 1926 11 Grant Thornton 90 State House Square, 10th Floor, Hartford 06103 860-781-6700 • grantthornton.com 24 65 24 65 • • • • • • Jeffrey Strassman 1924 12 UHY 6 Executive Drive, Suite 111, Farmington 06032 860-676-9020 • uhy-us.com 20 30 20 32 • • • • • • John Salemi Steve Moulton 2000 13 Crowe LLP 62 Memorial Road, Suite 100, West Hartford 06107 860-678-9200 • crowe.com 16 32 16 32 • • • • Applied technology Joe Pieksza 1999 (2) 14 PC 314 Farmington Ave., Farmington 06032 860-677-9188 • 15 40 15 40 • • • • • Todd Shelansky 1979 15 Guilmartin, DiPiro & Sokolowski LLC 505 Main St., Middletown 06457 860-347-5689 • gdscpas.com 14 27 14 27 • • • • • Christopher Conley Teresa Opalacz Rick Morin Michael Kovaleski Dylan Stumpf 1972 16 Gitlin & Co. LLC (3) 836 Farmington Ave., Suite 221, West Hartford 06119 860-236-5833 • gc-cpas.com 14 26 14 26 • • • • • Salvatore Giuliano 1952 17 Nicola, Yester & Co. PC (4) 223 Eastern Blvd., Glastonbury 06033 860-633-1194 • nicola-yester.com 13 25 13 25 • • • • • Steven V. Prigionieri 1986 18 PKF O'Connor Davies 100 Great Meadow Road, W 06109 860-257-1870 • pkfod.com 13 20 66 122 • • • • • • • Kevin J. Keane Eric Hendlin 1891 19 Hallisey & D'Agostino LLP 540 Silas Deane Highway, W 06109 860-563-8271 • hdllpcpa.com 11 21 11 21 • • • • • Nathaniel G. D'Agostino 1972 20 PC 655 Winding Brook Drive, Glastonbury 06033 860-659-0357 • src-pc.com 10 22 10 22 • • • • • • • • edits James J. Bascetta 1975 21 Harvey & Horowitz PC 1813 Silas Deane Highway, Rocky Hill 06067 860-563-6443 • hhcpas.com 10 16 10 16 • • • • • • Robert Demers 1987 22 Pue, Chick, Leibowitz & Blezard LLC 76 S. Frontage Road, Vernon 06066 860-871-1722 • pue-cpas.com 8 20 8 20 • • • • • Michael R. Blezard Michael J. Welch 1955 23 Lenkowski Lonergan & Co. LLP 585 Hazard Ave., 06082 860-763-2351 • lenkowskilonergancpa.com 8 18 8 18 • • • • • • Forensic accounting, business valuation Leonard M. Romaniello Jr. 1965 Sour eater Hartford, no longer reveals its local employee counts and is therefore not on the list. N/A = Not available. (1) Plans move to 1001 Farmington Ave., in West Hartford Center, by 2027. (2) Year founded locally. (3) Formerly GitlinCampisePrendergast LLC. (4) Acquired Rocky Hill CP ella & Co. in July 2025. -Compiled by: Stephanie R. Meagher, research@nebusinessmedia.com BE A PART OF THE ISSUE • ADVERTISING@HARTFORDBUSINESS.COM DON'T MISS OUR FEBRUARY 9 TH ISSUE focused on ACCOUNTING HARTFORD BUSINESS JOURNAL Connecticut's Business News HARTFORD BUSINESS JOURNAL