The largest employers in Philadelphia County are institutions, not companies. Trustees of the University of PA heads the list, followed by the City of Philadelphia, the Federal Government and the School District of Philadelphia. The Children's Hospital of Philadelphia, Thomas Jefferson University Hospital, Temple University and Temple University Hospital Inc fill most of the rest. American Airlines Inc and the Southeastern PA Transportation Authority complete it.
The census counts point the same way. Health care and social assistance has the most business locations in the metro and by far the biggest payroll. Professional, scientific and technical services is a close second by location count, with 244,547 employees. Retail, personal and repair services, and construction make up the rest of the top five.
For an owner-operated company, that mix means the paying customer is often an institution with a purchasing department, a budget cycle and an approved-vendor list. Engineering and design firms, billing and staffing agencies, facilities contractors, IT shops and specialty builders all sell into it. Institutional customers bring steady volume along with slow, formal decisions. A buyer reads both sides of that when going through the books.