A - 1 CONSTRUCTION operating as a sole owner is licensed in California under CSLB number 690238. The license was first issued in 1994, putting the business at 32 years on the active CSLB roster. It carries a single CSLB classification: A — General Engineering Contractor. Records show an active surety bond on file with NORTH RIVER INSURANCE COMPANY (THE) and active workers' compensation coverage from STATE COMPENSATION INSURANCE FUND. The business is based in SAN FRANCISCO, in San Francisco County, California.