Philadelphia - 8 companies
Pittsburgh - 19 companies
Allentown - 12 companies
Erie - 6 companies
Reading - 11 companies
Scranton - 2 companies
Bethlehem - 7 companies
Lancaster - 22 companies
Levittown - 6 companies
Harrisburg - 14 companies
White Oak - 1 company
Stroudsburg - 1 company
Strasburg - 1 company
Jamison - 1 company
Croydon - 1 company
Bethel Park - 1 company
Bristol - 2 companies
Bensalem - 2 companies
Huntingdon Valley - 1 company
Abington - 1 company
Feasterville - 1 company
Oreland - 1 company
Glenside - 1 company
Butler - 1 company
Carnegie - 1 company
West Mifflin - 1 company
Herminie - 1 company
Homestead - 1 company
Claysville - 1 company
Oakmont - 1 company
Mcmurray - 1 company
Allison Park - 1 company
Wyomissing - 1 company
Whitehall - 1 company
Freemansburg - 1 company
Quakertown - 2 companies
Jim Thorpe - 1 company
Schuylkill Haven - 1 company
Easton - 1 company
Wernersville - 1 company
Oley - 1 company
Ephrata - 1 company
New Holland - 1 company
Pottsville - 1 company
Dover - 1 company
Leola - 1 company
Downingtown - 1 company
Dunmore - 1 company
Clarks Summit - 1 company
Blue Bell - 1 company
Elizabethtown - 3 companies
Landisville - 1 company
Stevens - 1 company
Manheim - 2 companies
Akron - 1 company
Lititz - 1 company
Lansdale - 1 company
Willow Grove - 1 company
Loysville - 1 company
York - 1 company
Glen Mills - 1 company
Murrysville - 1 company