| Acorn Energy | Montchanin | DE |
| Advanced GeoServices | West Chester | PA |
| Airgas | Exton | PA |
| Akin Gump Strauss Hauer & Feld, LLP | Philadelphia | PA |
| Alexon properties, Inc | Philadelphia | PA |
| Amazing Space Properties | – | – |
| Apex Companies | Malvern | PA |
| Aqua America, Inc. | Bryn Mawr | PA |
| Archer & Greiner | Philadelphia | PA |
| Arent Fox LLP | – | – |
| Beazley Group | Philadelphia | PA |
| Biegalski, Edward | – | – |
| Boenning & Scattergood | West Conshohocken | PA |
| Brody International LLC | – | – |
| Buck Consultants | Berwyn | PA |
| Capitol Strategies Group | Harrisburg | PA |
| CBIZ MHM, LLC | Plymouth Meeting | PA |
| Chadwick Services Company | Bensalem | PA |
| Chesapeake Energy | – | – |
| Chester Engineers | – | – |
| CHPlanning | Philadelphia | PA |
| Colliers Lanard & Axilbund | Philadelphia | PA |
| Creative Media Communications, Inc. | Upper Darby | PA |
| Custom Alloy Corporation | High Bridge, | NJ |
| CZOP Specter | – | – |
| Davidson Trust Company | Devon | PA |
| Dechert LLP | Philadelphia | PA |
| Deloitte LLP | – | – |
| Devine + Powers | Philadelphia | PA |
| Dilworth Paxson LLP | Philadelphia | PA |
| Direct Energy Business | Pittsburgh | PA |
| DP Partners | Conshohocken | PA |
| Drexel University | Philadelphia | PA |
| Eckert Seamans Cherin & Mellott, LLC | – | – |
| Econsult Corporation | – | – |
| Elliott Lewis Corporation | Philadelphia | PA |
| Embrook Benefits Consulting | Meadowbrook | PA |
| Enterprise Holdings | – | – |
| Enterprise Rent-A-Car of Philadelphia | Radnor | PA |
| Ernst & Young LLP | – | – |
| Exelon Corp. | Kennett Square | PA |
| Express 4x4 Truck Rental | Warminster | PA |
| Firstrust Bank | Conshohocken | PA |
| Flaster Greenberg P.C. | Philadelphia | PA |
| Fox Run Group, LLC | Allentown | NJ |
| Girl Scouts of Eastern Pa. | – | – |
| GMH Capital Partners | – | – |
| Goldman, Sachs & Co. | Philadelphia | PA |
| GPI Greenman-Pedersen, Inc | – | – |
| Graham Partners | Malvern | PA |
| Grosvenor Investment Management | Philadelphia | PA |
| GZA GeoEnvironmental, Inc. | Fort Washington | PA |
| Hess Corporation | Moorestown | NJ |
| Hill International, Inc. | Philadelphia | PA |
| Holman & Frenia PC | Medford | NJ |
| Houston Wire & Cable | Coatesville | PA |
| Howard Neukrug | – | – |
| Human Capital Consulting Partners | – | – |
| HYPEX Inc. | – | – |
| J.P. Morgan Securties LLC | New York | NY |
| James J. Bloom, LLC | – | – |
| Joseph Oat Corporation | – | – |
| Kleinfelder | Exton | PA |
| KPMG LLP | Philadelphia | PA |
| Landowner Cambria County | Media | PA |
| LevLane Advertising/PR/Interactive | Philadelphia | PA |
| Liberty Square Group, LLP | Philadelphia | PA |
| Lignol Innovations Inc | Berwyn | PA |
| M&T Bank | Philadelphia | PA |
| M.C. Fuhrman & Assoc. (MCFA) | Haddonfield | NJ |
| Manko, Gold, Katcher & Fox, LLP | – | – |
| Mary Jo Markle | – | – |
| Matrix Service Industrial Contractors, Inc. | – | – |
| Maven, Inc. | Philadelphia | PA |
| MDavis | – | – |
| Mechanical Contractors Association of Eastern PA, Inc. | Plymouth Meeting | PA |
| Meidlinger Partners | Philadelphia | PA |
| Meridian Bank | Devon | PA |
| Meridian Development Group | – | – |
| Met-Pro Corporation | Harleysville | PA |
| Milligan & Company, LLC | Philadelphia | PA |
| Mitchell & Titus, LLP | Philadelphia | PA |
| Modular Manufacturers Group LLC | Glenside | PA |
| National Multiple Sclerosis Society | Philadelphia | PA |
| NaviGATE Corporation | – | – |
| North Highland Company | Radnor | PA |
| NovaCare Rehabilitation | King of Prussia | PA |
| Obermayer Rebmann Maxwell & Hippel LLP | – | – |
| Offit Kurman | – | – |
| Outsourced Financial Analytics, LLC | Radnor | PA |
| Pentec Health Incorporated | Boothwyn | PA |
| Philadelphia Gas Works | Philadelphia | PA |
| Philadelphia Regional Port Authority | – | – |
| Prince Hall Grand Lodge of PA | Philadelphia | PA |
| Range Resources Corporation | Malvern | PA |
| Reed Smith LLP | – | – |
| Rhoads Industries | Drexel Hill | PA |
| Robert Wiseman, PE | Moorestown | NJ |
| Rubicon Wealth Management, LLC | Bala Cynwyd | PA |
| S4W | – | – |
| Select Greater Philadelphia | – | – |
| Shale Directories | – | – |
| Shell Exploration | – | – |
| Smart Devine | Philadelphia | PA |
| South Jersey Energy Solutions | – | – |
| Sovereign/Santander | – | – |
| Spadaccino Construction Services, Inc. | Doylestown | PA |
| Spector Gadon & Rosen, P.C. | – | – |
| Star Parts | Wynnewood | PA |
| Stradley Ronon | Philadelphia | PA |
| Sunoco, Inc. | – | – |
| Talisman Energy | Warrendale | PA |
| Temple University | Philadelphia | PA |
| The Burns Group | Philadelphia | PA |
| The Center For Intelligent Leadership | – | – |
| The Graham Company | Philadelphia | PA |
| The Greater Philadelphia Clean Cities Program | – | – |
| The Haverford Trust Company | – | – |
| The Main Line Chamber of Commerce | – | – |
| The McKissack Group, Inc. | – | – |
| The Mellon Bank Center | – | – |
| The Pennsylvania Horticultural Society | Philadelphia | PA |
| The Pilots' Assn. for the Bay and River Delaware | Philadelphia | PA |
| The Radnor Hotel | St. Davids | PA |
| Tierney | Philadelphia | PA |
| Tower Bridge Advisors, Inc | W. Conshohocken | PA |
| Traffic Planning and Design, Inc. (TPD) | Pottstown | PA |
| Urban Engineers, Inc. | Philadelphia | PA |
| Veolia Energy Philadelphia Inc. | – | – |
| Waste Management | – | – |
| Wastequip | Erial | NJ |
| Wells Fargo Insurance Services of Pennsylvania, Inc. | King of Prussia | PA |
| Worth & Company, Inc. | Pipersville | PA |
| WSFS Bank | – | – |
| Zencey, Matthew | – | – |