| Comcast Corporation |
10,230 |
| SAP AG |
6,057 |
| Community College of Baltimore County |
5,989 |
| University of Delaware |
5,517 |
| Drexel University College of Medicine |
4,600 |
| City of Philadelphia Pennsylvania |
4,259 |
| Genesis HealthCare |
3,690 |
| The University of Pennsylvania |
3,375 |
| Aegon Group |
2,873 |
| Ricoh Americas Corp |
2,815 |
| Universal Health Services, Inc. |
2,810 |
| Temple University |
2,662 |
| Lehigh Valley Health Network |
2,298 |
| DuPont |
2,170 |
| The Vanguard Group, Inc. |
2,160 |
| Air Products and Chemicals, Inc. |
2,095 |
| TE Connectivity |
2,034 |
| Prudential Fox Roach, Inc. |
2,020 |
| Morgan, Lewis & Bockius LLP |
1,934 |
| Aramark Uniform Services |
1,888 |
| Dechert LLP |
1,801 |
| Thomas Jefferson University |
1,676 |
| Drexel University |
1,665 |
| Aramark Corporation |
1,639 |
| Airgas Inc |
1,612 |
| AON |
1,600 |
| West Chester University |
1,595 |
| The Children's Hospital of Philadelphia |
1,595 |
| City of Vineland, New Jersey |
1,571 |
| Unisys Corporation |
1,525 |
| CDI Corp. |
1,514 |
| Morgan State University |
1,466 |
| TEVA Pharmaceuticals |
1,448 |
| Capital One 360 |
1,447 |
| Lehigh University |
1,415 |
| Saint-Gobain |
1,391 |
| Downingtown Area School District |
1,346 |
| Lower Merion School District |
1,330 |
| PPL Corporation |
1,302 |
| Kenexa |
1,205 |
| Richard Stockton College of New Jersey |
1,146 |
| Janney Montgomery Scott LLC |
1,130 |
| Rowan University |
1,128 |
| Ace Group |
1,118 |
| FMC Corporation |
1,101 |
| Janssen Research & Development, L.L.C. |
1,098 |
| East Penn School District |
1,007 |
| Triumph Group, Inc. |
988 |
| AmerisourceBergen |
971 |
| Bucks County Community College |
959 |
| GSI Commerce, Inc. |
934 |
| Bryn Mawr College |
873 |
| Cape Henlopen School District |
856 |
| Caesar Rodney School District |
849 |
| 21st Century Insurance |
846 |
| University of Pennsylvania, Nursing Science |
843 |
| Main Line Health |
833 |
| Burlington County College |
807 |
| Duane Morris LLP |
803 |
| Ametek, Inc. |
793 |
| The Penn Mutual Life Insurance Co. |
791 |
| Drinker Biddle & Reath LLP |
772 |
| Virtua Health |
766 |
| La Salle University |
766 |
| QVC, Inc. |
755 |
| Christiana Care Health System |
753 |
| Crozer-Keystone Health System |
749 |
| SEI Investments Co. |
741 |
| Sallie Mae |
734 |
| Lincoln University |
732 |
| Kutztown University of Pennsylvania |
725 |
| American Water |
718 |
| Saint Joseph's University |
709 |
| Wharton School of the University of Pennsylvania |
693 |
| Cheltenham Township School District |
691 |
| School District of Haverford Township |
688 |
| Boyertown Area School District |
684 |
| Abington Memorial Hospital, Inc. |
664 |
| Pep Boys |
648 |
| DePuy Synthes Companies |
648 |
| Arkema Inc. |
646 |
| New Horizons Computer Learning Centers, Inc. |
634 |
| GENEX Services, Inc. |
630 |
| Campbell Soup Company |
628 |
| Swarthmore College |
620 |
| AmeriGas Partners, L.P. |
614 |
| Cephalon, Inc. |
612 |
| Gwynedd-Mercy College |
612 |
| Independence Blue Cross |
600 |
| Day & Zimmermann |
595 |
| Gloucester County College |
591 |
| Marshall, Dennehey, Warner, Coleman & Goggin |
580 |
| Pennsauken Public Schools |
560 |
| Tredyffrin/Easttown School District |
558 |
| Sunoco, Inc. |
556 |
| Crown Holdings, Inc. |
553 |
| Entercom Communications Corp. |
548 |
| Toll Brothers, Inc. |
546 |
| Fox Chase Cancer Center |
545 |
| NCO Group, Inc. |
541 |
| Anne Arundel Health System |
538 |
| University of Pennsylvania Medical School |
534 |
| Thomas Jefferson University Hospital |
527 |
| SCA Americas |
519 |
| The Reading Hospital and Medical Center |
519 |
| Blank Rome |
515 |
| Pepper Hamilton LLP |
513 |
| Fox Rothschild LLP |
512 |
| Olympus America Inc. |
508 |
| SKF Group |
496 |
| Ursinus College |
492 |
| University of the Arts |
491 |
| Weston Solutions, Inc. |
484 |
| VWR International, LLC |
481 |
| Ballard Spahr LLP |
471 |
| NextGen Healthcare Information Systems |
462 |
| Marlton Century 21 |
459 |
| West Pharmaceutical Services, Inc. |
455 |
| Hornor, Townsend and Kent, Inc. |
453 |
| Bensalem Township School District |
453 |
| Take Care Health Systems |
437 |
| Pennsylvania Real Estate Investment Trust |
435 |
| Reading Area Community College |
433 |
| Perkiomen Valley School District |
430 |
| Kennedy Health System |
426 |
| Draeger Medical Inc. |
420 |
| De Lage Landen Financial Services Inc |
418 |
| Muhlenberg College |
411 |
| Philadelphia Newspapers Inc |
408 |
| Aria Health System |
406 |
| Cooper University Hospital |
402 |
| Yoh Company |
395 |
| Boscov's Department Store, LLC |
395 |
| Bentley Systems, Incorporated |
394 |
| GMAC Mortgage, LLC |
393 |
| Teleflex Incorporated |
392 |
| Cherry Hill Board Of Education & Cherry Hill High School East |
388 |
| West Avenue School |
386 |
| Moravian College |
384 |
| Penn National Gaming, Inc. |
380 |
| Theorem Clinical Research |
377 |
| Endo Pharmaceuticals |
372 |
| CSL Behring L.L.C. |
357 |
| Coldwell Banker Hearthside |
355 |
| Devereux Foundation |
353 |
| Hay Group |
350 |
| Lafayette College |
345 |
| Wawa, Inc. |
340 |
| Wissahickon School District |
337 |
| DecisionOne Corporation |
337 |
| Lincoln Financial Distributors |
336 |
| Haverford College |
333 |
| IKEA |
331 |
| Albert Einstein Healthcare Network |
328 |
| Lutron Electronics Company, Inc. |
327 |
| Delaware Management Holdings, Inc. |
320 |
| University of Pennsylvania School of Arts and Sciences |
320 |
| St. Luke's Hospital & Health Network |
317 |
| MICROS Systems, Inc. |
316 |
| Subaru of America, Inc. |
315 |
| The Chester County Hospital |
312 |
| Widener University |
307 |
| Henkels & McCoy, Inc. |
305 |
| Radian Group Inc |
298 |
| Harleysville Group Inc. |
295 |
| Merkle Inc. |
294 |
| Premier Research Group plc |
288 |
| Prometric |
285 |
| AlliedBarton Security Services |
284 |
| Hamburg Area School District |
284 |
| Red Clay Consolidated School District |
283 |
| Project Management Institute |
282 |
| Upper Darby School District |
281 |
| Knoll, Inc. |
280 |
| Hammonton Public Schools |
279 |
| Hill International, Inc. |
277 |
| Gardner Denver, Inc. |
275 |
| Arcadia University of Pennsylvania |
274 |
| Radnor Township School District |
272 |
| Lenape Regional High School District |
270 |
| Saul Ewing LLP |
269 |
| Holman Automotive |
266 |
| Vishay Intertechnology, Inc. |
265 |
| Telerx |
261 |
| Upper Chesapeake Health |
257 |
| Pleasantville School District |
256 |
| PHH Corporation |
250 |
| Journal Register Company |
248 |
| Apex Companies, LLC |
248 |
| George School |
245 |
| Carpenter Technology Corporation |
243 |
| Rodale, Inc. |
240 |
| Big Brothers Big Sisters of America |
240 |
| Immaculata University |
239 |
| Charming Shoppes, Inc |
239 |
| Aqua America, Inc. |
237 |
| South Jersey Healthcare |
237 |
| Crayola LLC |
237 |
| The Judge Group, Inc. |
234 |
| University of the Sciences |
233 |
