Wilmington - 15 companies
Dover - 5 companies
Newark - 14 companies
Bear - 7 companies
Middletown - 6 companies
Brookside - 2 companies
Glasgow - 2 companies
Hockessin - 5 companies
Pike Creek Valley - 5 companies
Smyrna - 5 companies
Stanton - 1 company
New Castle - 2 companies