1. Kentco Construction 5901 Bethel Island Rd, Oakley, CA 94561 Coordinate: 38.00905,-121.64195 Phone: (925) 684-3921
2. Foundation Constructors Inc. 81 Big Break Rd, Oakley, CA 94561 Coordinate: 38.009026,-121.7323 Phone: (800) 841-8740