KNUPPE H JAMES operating as a sole owner is licensed in California under CSLB number 214462. The license was first issued in 1963, putting the business at 63 years on the active CSLB roster. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with AMERICAN CONTRACTORS INDEMNITY COMPANY and active workers' compensation coverage from A I U INSURANCE COMPANY. The business is based in CASTRO VALLEY, in Alameda County, California.