HOLTZ JOHN GRADING operating as a sole owner is licensed in California under CSLB number 881838. The license was first issued in 2006, putting the business at 20 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 MERCHANTS BONDING COMPANY (MUTUAL) and an exempt workers' compensation status (no employees on payroll). The business is based in VALLEY CENTER, in San Diego County, California.