Of the 1,014 firms in OC, more than 41% employ one to four people, while 24.3% have five to nine employees. About 20% have 10 to 19 employees. Engineering firms combine to employ approximately 16,400 workers here. Irvine is home to the most firms, with 199. Stanton, Sunset Beach and Villa Park count the fewest, with one each. About 85% of the firms have only one location. About 1% of them have divisions and 6.7% have branches.
