A O A UNDERGROUND operating as a sole owner is licensed in California under CSLB number 402321. The license was first issued in 1981, putting the business at 45 years on the active CSLB roster. It carries 3 CSLB classifications: A General Engineering Contractor, B General Building Contractor, and C-10 Electrical Contractor. Records show an active surety bond on file with AMERICAN CONTRACTORS INDEMNITY COMPANY and an exempt workers' compensation status (no employees on payroll). The business is based in PALO CEDRO, in Shasta County, California.