| Aramark | business, public company | 1959 |
| Budd Company | business, aerospace manufacturer | 1912 |
| Clarivate | public company | October 3, 2016 |
| Comcast | telecommunications company, business, enterprise, public company | June 28, 1963 |
| Conrail | railway company | April 1, 1976 |
| Eckert–Mauchly Computer Corporation | business | 1948 |
| Extreme Championship Wrestling | media franchise, business | April 25, 1992 |
| Institute for Scientific Information | business, enterprise | 1960 |
| J. G. Brill Company | business, enterprise | 1868 |
| Jewish Publication Society | book publisher, publishing house | June 3, 1888 |
| Lubin Manufacturing Company | film production company | 1902 |
| Piasecki Helicopter Corporation | former entity, aerospace manufacturer | 1940 |
| Sports Reference | business | December 3, 2007 |
| The Wharton School | business school, private university | 1881 |
| Thomas Jefferson University | private not-for-profit educational institution, university | 1824 |
| University of Pennsylvania | colonial colleges, research university, private not-for-profit educational institution, private university | November 14, 1740 |
| Young & Rubicam | advertising agency | 1923 |