Who are Philly's biggest private employers?

The Hospital of the University of Pennsylvania.

These are the largest private employers in the City of Philadelphia, by number of employees, compiled by the Revenue Department from 2012 wage tax data.

1. University of Pennsylvania (and Health System) 33,366 
2. Temple University (and Health System) 11,058
3. Drexel University 9,356
4. Children’s Hospital of Philadelphia 9,355
5. Thomas Jefferson University (and hospitals) 8,147
6. Albert Einstein Medical 5,907
. Independence Blue Cross 3,894
8. PNC Bank 3,847
9. Comcast Corp. 3,250
10. Wells Fargo Bank 2,291
11. Aramark Corp. 1,805
12. Ace Ltd. 1,388
13. GlaxoSmithKline LLC 1,300

It's part of a series of reports posted this morning by the city Finance Department after they gave the data to bond underwriters in a closed-door meeting yesterday. Read all the bond documents, which compile a lot of useful and interesting city data and some hopeful claims, at http://www.phila.gov/investor/conference.html