Top Twenty Establishments by number of Employees				
				
Company Name	ZIP	 Employees 	Primary SIC	Line of Business
University Of Pennsylvania	19104	" 13,572 "	82210102	UNIVERSITY HOSPITAL & HEALTH SYSTEM
United States Postal Service	19104	" 13,000 "	43110000	US POSTAL SERVICE
University Of Pennsylvania*	19104	" 12,001 "	80110000	MEDICAL DOCTOR'S OFFICE
University Of Pennsylvania	19104	" 4,500 "	80620000	GENERAL HOSPITAL
Childrens Hosp Of Philadelphia	19104	" 3,880 "	80699901	CHILDREN'S HOSPITAL
Drexel University	19104	" 2,760 "	82210102	UNIVERSITY
Veterans Health Administration	19104	" 2,500 "	80620000	VETERANS MEDICAL CENTER
University Of Pennsylvania*	19104	" 1,700 "	87320100	COMMERCIAL NONPHYSICAL RESEARCH
Presbyterian Medical Ctr Unive	19104	" 1,350 "	80620000	GENERAL HOSPITAL
St Joseph's University	19131	" 1,000 "	82210102	PRIVATE UNIVERSITY
National Railroad Pass Corp	19104	 800 	41110401	LOCAL/SUBURBAN TRANSPORTATION
Inglis House	19131	 700 	83610303	HOME FOR PHYSICALLY DISABLED PERSONS
The Hospital Of Pennsylvania	19139	 700 	80639901	PSYCHIATRIC HOSPITAL
University Of Pennsylvania*	19104	 700 	82210102	COLLEGE/UNIVERSITY
University Of The Sciences	19104	 700 	82210102	COLLEGE/UNIVERSITY
University Of Pennsylvania*	19104	 650 	82210102	COLLEGE/UNIVERSITY
Greater Atlantic Health Svc De	19104	 600 	63249903	HOSPITAL/MEDICAL SERVICE PLAN
Institute For Scientific Info	19104	 600 	27210100	PERIODICAL PUBLISHER
Philadelphia College Of Osteo	19131	 531 	82210200	COLLEGE/UNIVERSITY
Seven Seventeen Hb Philadel	19131	 500 	70110300	HOTEL