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Largest law firms in Pennsylvania

580 firms with at least 10 Pennsylvania-licensed attorneys, 18,868 attorneys between them. Counted from Pennsylvania Disciplinary Board records, refreshed 2026-09-06.

#FirmAttorneysShare of ranked
1 Morgan, Lewis & Bockius, LLP 380 2.0%
2 Cozen O'Connor, LLP 345 1.8%
3 Reed Smith LLP 306 1.6%
4 Defender Association of Philadelphia 247 1.3%
5 Fox Rothschild, LLP 239 1.3%
6 Buchanan Ingersoll & Rooney, PC 228 1.2%
7 Pennsylvania Office of Attorney General 228 1.2%
8 Duane Morris, LLP 227 1.2%
9 Blank Rome LLP 225 1.2%
10 Philadelphia District Attorney’s Office 205 1.1%
11 Ballard Spahr LLP 191 1.0%
12 Troutman Pepper Locke, LLP 190 1.0%
13 Marshall Dennehey, P.C. 189 1.0%
14 Commonwealth of Pennsylvania 186 1.0%
15 K&L Gates, LLP 178 0.9%
16 Eckert Seamans Cherin & Mellott, LLC 168 0.9%
17 Dechert LLP 167 0.9%
18 McNees Wallace & Nurick, LLC 152 0.8%
19 Stradley, Ronon, Stevens & Young, LLP 135 0.7%
20 Burns White, LLC 132 0.7%
21 Post & Schell, P.C. 130 0.7%
22 Faegre Drinker Biddle & Reath, LLP 128 0.7%
23 Barley Snyder, LLP 121 0.6%
24 City of Philadelphia 118 0.6%
25 Clark Hill, PLC 116 0.6%
26 Saxton & Stump, LLC 116 0.6%
27 Allegheny County District Attorney's Office 115 0.6%
28 Stevens & Lee, PC 115 0.6%
29 DICKIE, MCCAMEY & CHILCOTE, PC 113 0.6%
30 Gordon Rees Scully Mansukhani, LLP 113 0.6%
31 Saul Ewing LLP 112 0.6%
32 Philadelphia Law Department 104 0.6%
33 Cipriani & Werner PC 103 0.5%
34 Philadelphia District Attorney's Office 102 0.5%
35 Administrative Office of Pennsylvania Courts 100 0.5%
36 White and Williams, LLC 100 0.5%
37 Allegheny County Public Defender's Office 96 0.5%
38 City of Philadelphia Law Department 96 0.5%
39 Obermayer Rebmann Maxwell & Hippel, LLP 95 0.5%
40 Comcast 94 0.5%
41 Margolis, Edelstein 94 0.5%
42 Dilworth Paxson, LLP 92 0.5%
43 Pennsylvania Department of Labor & Industry 92 0.5%
44 PNC Bank, N.A. 92 0.5%
45 Mullen Coughlin LLC 86 0.5%
46 Klehr Harrison Harvey Branzburg, LLP 85 0.5%
47 Superior Court of Pennsylvania 82 0.4%
48 The Vanguard Group, Inc. 80 0.4%
49 Kessler Topaz Meltzer & Check, LLP 78 0.4%
50 Dentons, Cohen & Grigsby PC 77 0.4%
51 Babst, Calland, Clements and Zomnir, P.C. 74 0.4%
52 Jones Day, LLP 74 0.4%
53 Thomas, Thomas & Hafer, LLP 74 0.4%
54 Community Legal Services of Philadelphia, Inc. 72 0.4%
55 First Judicial District of Pennsylvania 72 0.4%
56 Royer Cooper Cohen Braunfeld, LLC 71 0.4%
57 Pennsylvania Governor's Office Of General Counsel 70 0.4%
58 Greenberg Traurig, LLP 69 0.4%
59 Pennsylvania Public Utility Commission 68 0.4%
60 Weber Gallagher Simpson Stapleton Fires & Newby, LLP 66 0.3%
61 U.S. Attorney's Office, Eastern District of Pennsylvania 64 0.3%
62 Tucker Arensberg, PC 63 0.3%
63 Federal Community Defender Office, Eastern District of Pennsylvania 62 0.3%
64 Steptoe & Johnson, PLLC 62 0.3%
65 Social Security Administration 61 0.3%
66 Chubb 60 0.3%
67 Federal Express Corporation 59 0.3%
68 Fisher & Phillips LLP 59 0.3%
69 University of Pennsylvania 58 0.3%
70 Leech Tishman Fuscaldo & Lampl, LLC 57 0.3%
71 Bennett, Bricklin & Saltzburg, LLC 56 0.3%
72 Holland & Knight LLP 56 0.3%
73 MidPenn Legal Services, Inc. 56 0.3%
74 Montgomery County District Attorney's Office 55 0.3%
75 Berger Montague PC 55 0.3%
76 Kline & Specter, PC 55 0.3%
77 Pietragallo Gordon Alfano Bosick & Raspanti, LLP. 55 0.3%
78 Cohen Seglias Pallas Greenhall & Furman, PC 54 0.3%
79 DLA Piper LLP 54 0.3%
80 Marshall Dennehey, LLP 54 0.3%
81 Metz Lewis Brodman Must O'Keefe LLC 53 0.3%
82 Montgomery, McCracken, Walker & Rhoads, LLP 53 0.3%
83 Chartwell Law 52 0.3%
84 Lamb McErlane, PC 52 0.3%
85 Social Security Administration OHO (Office of Hearing Operations) 51 0.3%
86 U.S. Department of Justice 51 0.3%
87 McGuireWoods, LLP 50 0.3%
88 Meyer, Unkovic & Scott LLP 50 0.3%
89 Wisler Pearlstine, LLP 50 0.3%
90 Commonwealth Court of Pennsylvania 49 0.3%
91 Hangley, Aronchick, Segal, Pudlin & Schiller 49 0.3%
92 Pennsylvania Department of Environmental Protection 49 0.3%
93 Montgomery County Public Defender's Office 48 0.3%
94 Pennsylvania Office of General Counsel 47 0.2%
95 Goldberg Segalla, LLC 46 0.2%
96 Zarwin Baum DeVito Kaplan Schaer Toddy PC 46 0.2%
97 Pennsylvania Department of State 45 0.2%
98 Flaster Greenberg LLP 45 0.2%
99 Kleinbard, LLC 45 0.2%
100 Lewis, Brisbois, Bisgaard & Smith LLP 45 0.2%
101 MacDonald, Illig, Jones & Britton, LLP 44 0.2%
102 Polsinelli, PC 44 0.2%
103 UPMC 44 0.2%
104 Littler Mendelson, PC 43 0.2%
105 Delaware County District Attorney's Office 42 0.2%
106 Neighborhood Legal Services 42 0.2%
107 Willig, Williams, & Davidson 42 0.2%
108 Dinsmore & Shohl LLP 40 0.2%
109 Baker & Hostetler, LLP 40 0.2%
110 Delaware County Public Defender's Office 40 0.2%
111 DLA Piper, LLP (US) 40 0.2%
112 Gross McGinley, LLP 40 0.2%
113 KidsVoice 40 0.2%
114 Kane, Pugh, Knoell, Troy & Kramer, LLP. 39 0.2%
115 Legal Aid of Southeastern Pennsylvania 39 0.2%
116 Morgan & Morgan, PLLC 39 0.2%
117 Pond Lehocky Giordano, Inc. 39 0.2%
118 IRS (Internal Revenue Service) 38 0.2%
119 Rawle & Henderson, LLP 38 0.2%
120 Wilson Elser, LLP 38 0.2%
121 Houston Harbaugh, P.C. 37 0.2%
122 Philadelphia Legal Assistance 37 0.2%
123 Chester County District Attorney's Office 36 0.2%
124 Fitzpatrick Lentz & Bubba PC 36 0.2%
125 Sherrard, German & Kelly, P.C. 36 0.2%
126 BBC Law, LLP 35 0.2%
127 MacElree Harvey, Ltd. 35 0.2%
128 MARKS, O'NEILL, O'BRIEN, DOHERTY & KELLY, P.C. 35 0.2%
129 Summit Legal Aid 35 0.2%
130 Zimmer Kunz , PLLC 35 0.2%
131 Highmark Health, Inc. 34 0.2%
132 King, Spry, Herman, Freund, & Faul, LLC 34 0.2%
133 North Penn Legal Services Inc. 34 0.2%
134 Pennsylvania Supreme Court 34 0.2%
135 U.S. District Court, Western District of Pennsylvania 34 0.2%
136 CGA LAW FIRM 33 0.2%
137 Curtin & Heefner, LLP 33 0.2%
138 Edgar Snyder & Associates, LLC 33 0.2%
139 FBT Gibbons LLP 33 0.2%
140 Knox McLaughlin Gornall & Sennett, PC 33 0.2%
141 Disciplinary Board of the Supreme Court of Pennsylvania (The) 32 0.2%
142 Pennsylvania House of Representatives 32 0.2%
143 Bucks County District Attorney's Office 31 0.2%
144 Eastburn and Gray, PC 31 0.2%
145 KPMG, LLP 31 0.2%
146 Nelson, Mullins, Riley & Scarborough, LLP 31 0.2%
147 Freeman, Mathis & Gary, LLP 30 0.2%
148 Maron Marvel Bradley Anderson & Tardy LLC 30 0.2%
149 O'Hagan Meyer, PLLC 30 0.2%
150 Pierson Ferdinand, LLP 30 0.2%
151 U.S. Court of Appeals for the Third Circuit 30 0.2%
152 U.S. Department of Labor 30 0.2%
153 U.S. District Court, Eastern District of Pennsylvania 30 0.2%
154 U.S. Attorney's Office, Western District of Pennsylvania 29 0.2%
155 Allegheny County Court of Common Pleas 29 0.2%
156 GRB Law 29 0.2%
157 Jackson Lewis, PC. 29 0.2%
158 Kirkland & Ellis LLP 29 0.2%
159 Salzmann Hughes, P.C. 29 0.2%
160 U.S. Environmental Protection Agency 29 0.2%
161 Cencora, Inc. 28 0.1%
162 Allegheny County Law Department 28 0.1%
163 Begley, Carlin & Mandio, LLP 28 0.1%
164 Defense Logistics Agency 28 0.1%
165 Horst Krekstein & Runyon, LLC 28 0.1%
166 Kaplin Stewart Meloff Reiter & Stein, PC 28 0.1%
167 Pennsylvania Department of Transportation 28 0.1%
168 Pennsylvania Gaming Control Board 28 0.1%
169 Temple University 28 0.1%
170 Aramark 27 0.1%
171 First American Title Insurance Company 27 0.1%
172 Reger, Rizzo, & Darnall LLP 27 0.1%
173 Simon & Simon, PC 27 0.1%
174 Sweet, Stevens, Katz, & Williams LLP 27 0.1%
175 Carnegie Mellon University 26 0.1%
176 Consilio LLC 26 0.1%
177 Feldman Shepherd Wohlgelernter Tanner Weinstock Dodig LLP 26 0.1%
178 Hamburg, Rubin, Mullin, Maxwell & Lupin, PC 26 0.1%
179 Lehigh County District Attorney's Office 26 0.1%
180 McQuaide Blasko, Inc. 26 0.1%
181 Pennsylvania Department of Corrections 26 0.1%
182 SeniorLAW Center 26 0.1%
183 University of Pennsylvania Carey Law School 26 0.1%
184 University of Pittsburgh 26 0.1%
185 Anapol Weiss 25 0.1%
186 Berks County District Attorney's Office 25 0.1%
187 Berman Voss 25 0.1%
188 Chester County Public Defender's Office 25 0.1%
189 Crown Castle 25 0.1%
190 Fowler Hirtzel McNulty & Spaulding, LLC 25 0.1%
191 Rosenn, Jenkins & Greenwald, LLP 25 0.1%
192 Saltz Mongeluzzi Bendesky, PC 25 0.1%
193 Travelers 25 0.1%
194 Webb Law Firm, P.C. (The) 25 0.1%
195 Dauphin County District Attorney's Office 24 0.1%
196 Goodwin Procter LLP 24 0.1%
197 Independence Blue Cross, LLC 24 0.1%
198 Kennedys CMK, LLP 24 0.1%
199 Manko, Gold, Katcher & Fox, LLP 24 0.1%
200 Marcus & Shapira, LLP 24 0.1%

Showing the top 200 of 580 ranked firms.

An attorney counts toward a firm in Pennsylvania when their Pennsylvania licence is active and their bar record names that firm. Attorneys who report no firm are not counted, so these are floors rather than totals. Method →