| City of Philadelphia, Pennsylvania |
8,038 |
| CIGNA Corporation |
3,996 |
| Comcast Corporation |
2,815 |
| CDI Corp. |
2,646 |
| Drexel University |
2,592 |
| Saint Joseph's University |
2,472 |
| Morgan, Lewis & Bockius LLP |
2,417 |
| Dechert LLP |
1,600 |
| University Of Pennsylvania |
1,406 |
| School District of Philadelphia Education Center |
1,345 |
| ARAMARK Corporation |
1,310 |
| Temple University |
1,284 |
| Towers Perrin |
1,010 |
| Drinker Biddle & Reath LLP |
1,009 |
| Sovereign Bancorp, Inc. |
954 |
| Pepper Hamilton LLP |
919 |
| Duane Morris LLP |
777 |
| La Salle University |
773 |
| Ballard Spahr LLP |
707 |
| Rohm and Haas Company |
702 |
| ACE INA |
663 |
| FMC Corporation |
612 |
| Blank Rome LLP |
612 |
| Marshall, Dennehey, Warner, Coleman & Goggin |
571 |
| Philadelphia Newspapers Inc |
557 |
| Fox Rothschild LLP |
555 |
| The Children's Hospital of Philadelphia |
503 |
| Crown Holdings, Inc. |
497 |
| Sunoco, Inc. |
488 |
| Cozen O'Connor |
485 |
| Right Management Consultants |
447 |
| University of the Arts |
434 |
| Independence Blue Cross |
401 |
| University of Pennsylvania Health System |
398 |
| Thomas Jefferson University |
371 |
| Arkema Inc. |
355 |
| Drexel University College of Medicine |
339 |
| Saul Ewing LLP |
310 |
| Janney Montgomery Scott LLC |
305 |
| White and Williams, LLP |
300 |
| Yoh Company |
277 |
| Fox Chase Cancer Center |
277 |
| Radian Asset Assurance |
241 |
| Schnader Harrison Segal |
240 |
| Pennsylvania Real Estate Investment Trust |
237 |
| Pep Boys Manny, Moe and Jack |
227 |
| Philadelphia University |
225 |
| Chestnut Hill College |
211 |
| Day & Zimmermann |
207 |
| Thomas Jefferson University Hospital |
204 |
| Stradley Ronon Stevens |
189 |
| Montgomery, McCracken, Walker & Rhoads, LLP |
187 |
| Hay Group, Inc. |
185 |
| University of Pennsylvania Medical School |
184 |
| AREVA T&D Inc |
179 |
| Agusta Aerospace Corporation |
171 |
| The Pew Charitable Trusts |
156 |
| ParenteBeard, LLC |
155 |
| Glenmede Trust |
144 |
| Academy of Natural Sciences |
141 |
| BDP International, Inc. |
139 |
| Post & Schell, P.C. |
139 |
| Urban Outfitters Inc. |
136 |
| Dilworth Paxson LLP |
136 |
| Keystone Mercy Health Plan |
135 |
| Intracorp |
133 |
| Girard College |
133 |
| North American Publishing Company (NAPCO) |
131 |
| University of the Sciences in Philadelphia |
131 |
| Margolis Edelstein |
129 |
| American College of Physicians |
128 |
| The PFM Group |
128 |
| Comcast Spectacor, L.P. |
127 |
| Management Recruiters International, Inc. |
123 |
| Klehr, Harrison, Harvey, Branzburg |
121 |
| Philadelphia Stock Exchange, Inc. |
117 |
| Southeastern Pennsylvania Transportation Authority |
116 |
| Big Brothers Big Sisters of America |
115 |
| Albert Einstein Healthcare Network |
114 |
| Premier Research Group plc |
110 |
| Destination Maternity Corporation |
106 |
| Applabs, Inc. |
104 |
| The Wistar Institute |
102 |
| Lincoln Financial Distributors |
101 |
| Kyw |
99 |
| Woodcock Washburn |
98 |
| Cancer Treatment Centers of America |
97 |
| Pearle Vision Inc |
97 |
| Prudential Savings Bank (MHC) |
96 |
| Pennsylvania Hospital |
94 |
| Beneficial Mutual Savings Bank (MHC) |
93 |
| Swartz Campbell LLC |
90 |
| Ridgway's, Ltd. |
89 |
| Weber Gallagher Simpson Stapleton Fires |
88 |
| Pennoni Associates Inc |
88 |
| WHYY-TV (PBS) |
87 |
| Marks O'Neill O'Brien |
87 |
| Philadelphia College of Osteopathic Medicine |
86 |
| Philadelphia Eagles, LLC |
83 |
| StarCite, Inc. |
83 |
| URL Pharma |
83 |
| Cardone Industries Inc. |
83 |
| Fluidics Inc. |
83 |
| eResearch Technology, Inc. |
82 |
| Holy Family University |
80 |
| Mintzer Sarowitz Zeris Ledva & Meyers L.L.P. |
80 |
| Philadelphia Gas Works |
80 |
| Harvey Pennington LTD |
78 |
| Metrocorp |
78 |
| Sparks Exhibits and Environments |
78 |
| University of Pennsylvania School of Arts and Sciences |
77 |
| KYW-TV (CBS 3) |
77 |
| National Constitution Center |
75 |
| Constar International Inc. |
75 |
| American Association for Cancer Research, Inc. AACR |
74 |
| Comcast Sportsnet |
74 |
| Federal Reserve Bank of Philadelphia |
74 |
| Binswanger Corporation |
72 |
| Berwind Group |
72 |
| Board Of Pensions of the Presbyterian Church USA |
71 |
| Moore College Of Art & Design |
70 |
| Rawle |
69 |
| Father Judge High school for Boys |
69 |
| American Friends Service Committee |
68 |
| Lavin, O'Neil, Ricci, Cedrone & DiSipio |
68 |
| Shunra Software Ltd. |
67 |
| Community College of Philadelphia |
67 |
| Berger |
67 |
| The NELSON Group of Companies |
66 |
| The Risk Management Association |
66 |
| The Philadelphia Phillies |
65 |
| Spector Gadon |
65 |
| Philadelphia Bar Association |
64 |
| Digitas Health |
63 |
| Reliance Standard Life Insurance Company |
62 |
| Pennsylvania Institute of Certified Public Accountants |
61 |
| Brandywine Global Investment Management, LLC |
59 |
| Chestnut Hill Hospital |
58 |
| Tierney Communications |
58 |
| Coldwell Banker Diamond Realtors |
57 |
| Wallace Roberts & Todd, LLC |
57 |
| Premier Research |
55 |
| Dorland Global Health Communications |
55 |
| National Board of Medical Examiners |
55 |
| Philadelphia Museum of Art |
55 |
| Republic First Bancorp Inc. |
53 |
| Tasty Baking Company |
52 |
| The Flynn Company |
52 |
| Fernley and Fernley, Inc |
52 |
| Richardson Group Inc. |
51 |
| Health Partners, Inc. |
51 |
| Iop Publishing Inc |
50 |
| Kent & McBride, P C |
50 |
| DVRPC |
49 |
| Prudential Prime Real Estate |
49 |
| ACE - ESIS, Inc. |
49 |
| Westinghouse Lighting Corp. |
48 |
| Penn Capital Management Co. |
48 |
| Kling |
47 |
| David Michael |
46 |
| Siam - Society For Industrial And Applied Mathematics |
46 |
| Deb Shops, Inc. |
45 |
| Philadelphia Convention and Visitors Bureau |
45 |
| Diversified Search Companies |
44 |
| Electronic Ink |
44 |
| Urban Engineers, Inc. |
44 |
| Bennett,Bricklin,Saltzburg Attorneys at Law |
44 |
| Philadelphia Weekly |
44 |
| Opera Company of Philadelphia |
44 |
| GVA Smith Mack |
43 |
| Society of Hospital Medicine |
42 |
| Healthcare Communications Group |
42 |
| Pennock Co |
42 |
| Jewish Federation of Greater Philadelphia |
42 |
| German Gallagher & Murtagh |
41 |
| CP Communications |
41 |
| Insinger Machine Company, Inc. |
40 |
| Congreso |
40 |
| American Board of Internal Medicine |
39 |
| Vox Medica, Inc. |
38 |
| ExcelleRx, Inc. |
38 |
| Lannett Company, Inc. |
38 |
| Anexinet |
38 |
| Christie Pabarue Mortensen and Young |
38 |
| Please Touch Museum |
38 |
| Hemispherx Biopharma, Inc. |
37 |
| Thomson Scientific |
37 |
| The Scientist |
36 |
| Arbill |
36 |
| The Kimmel Center, Inc. |
36 |
| Magee Rehabilitation |
36 |
| Reinvestment Fund |
36 |
| Barthco International, Inc |
35 |
| Anapol Schwartz Weiss Cohan Feldman and Smalley PC |
35 |
| Mattioni Ltd |
35 |
| Carpet Network |
35 |
| Peirce College |
34 |
| Resource America, Inc. |
34 |
| Opportunity Finance Network |
34 |
| Barrack Rodos & Bacine |
34 |
