Proofstackby Classifi

Verified independent contractors
in California.

California’s AB5 law created one of the strictest contractor classification standards in the country. Proofstack Verified contractors document their compliance with the ABC test — all three prongs.

Search verified contractors in California

California compliance landscape

Enforcement authority

California Employment Development Department (EDD) and Division of Labor Standards Enforcement (DLSE)

Classification test

AB5 strict ABC test

Primary risk

Wage claims, EDD audit, PAGA penalties up to $25,000 per violation

High-risk industries

Gig economyTechnologyCreative servicesConstruction

California codified the ABC test through AB5, making it one of the strictest states for contractor classification. Prong B (outside the usual course of business) is the most difficult to satisfy. Penalties are severe and can include back taxes, unpaid benefits, and per-violation fines.

Why Proofstack Verified matters in California

In California, the burden of proof in a misclassification audit falls on the employer. Proofstack Verified contractors come with documentation already built — independence signals mapped to the AB5 strict ABC test, W-9 on file, and engagement history that proves concurrent client relationships.

  • Independence signals documented against AB5 strict ABC test
  • W-9 on file and verified before engagement
  • Engagement history with concurrent client proof
  • Liability insurance certificate on file
  • Business entity confirmed

Verified contractors in California

The Proofstack network in California is growing.

Be among the first employers in California to access verified contractors — and invite your existing contractors to build their Proofstack profile.

Contractors you invite get a free Proofstack account. Verification is their choice.

High-risk contractor industries in California

Ready to hire compliant contractors in California?