HOLDEN RALPH & CO operating as a sole owner is licensed in California under CSLB number 307640. The license was first issued in 1975, putting the business at 51 years on the active CSLB roster. It carries 6 CSLB classifications: A General Engineering Contractor, B General Building Contractor, C-10 Electrical Contractor, C-16 Fire Protection Contractor, C-36 Plumbing Contractor, and C-57 Well Drilling Contractor. Records show an active surety bond on file with HUDSON INSURANCE COMPANY and an exempt workers' compensation status (no employees on payroll). The business is based in HEALDSBURG, in Sonoma County, California.