TrackMyVendor
Login Sign up free
Automatic license verification available

California Contractor License Lookup & Verification

Checking a sub's CSLB license by hand? TrackMyVendor monitors every California contractor license daily and alerts you the moment anything changes — before it becomes a problem on your job site.

Start free — verify your first 25 California subs No credit card required

California contractor license lookup

Enter a license number to instantly check its holder, status, and expiration date.

Individual lookups only — for bulk tracking and automated alerts, create a free account.

California contractor license requirements

Before hiring contractors in California, you need to verify they maintain proper credentials. California contractors are often required to have:

  • A valid CSLB (Contractors State License Board) license for projects over $500
  • Active insurance coverage (Certificate of Insurance) and contractor bond
  • Workers' compensation insurance (if they have employees)
  • Tax documentation (such as W-9 forms)

Requirements vary by trade and classification. For a full breakdown, see our California subcontractor license requirements guide and California subcontractor insurance requirements guide.

CSLB license classifications

The CSLB issues three license classes. Class A and B are broad; Class C licenses are trade-specific specialties. TrackMyVendor tracks all of them.

License class Trade / Scope
Class AGeneral Engineering Contractor
Class BGeneral Building Contractor
C-10Electrical
C-20Warm-Air Heating, Ventilating & Air-Conditioning (HVAC)
C-36Plumbing
C-39Roofing
C-33Painting and Decorating
C-27Landscaping
C-57Well Drilling
C-61 / DSpecialty / Limited Specialty (31 sub-classifications)

How California contractor license verification works

Automatic California contractor license lookup

TrackMyVendor connects to the CSLB (Contractors State License Board) database to help you:

  • Look up and verify California CSLB contractor licenses using official state data
  • Monitor license status, classifications, and track expiration dates automatically
  • Get alerts before a license expires or gets suspended

Licenses verified through state data are clearly marked as Verified.

California contractor insurance tracking

License verification is just one part of contractor compliance. TrackMyVendor also helps you manage California contractor insurance tracking:

Upload Certificates of Insurance (COIs)

Store and track COI documents with expiration dates for each vendor

Track insurance expiration dates

Get alerts before insurance coverage lapses

Store W-9 forms securely

Keep tax documentation organized and accessible

Complete vendor compliance view

See licenses, insurance, and documents in one place per vendor

California contractor compliance software features

Our California contractor compliance software helps you stay ahead of issues with:

  • Email reminders at 90, 60, 30, and 7 days before license or insurance expiration
  • Clear compliance scores showing each vendor's status at a glance
  • Exportable PDF and Excel compliance reports for boards, audits, or internal reviews

No more spreadsheets or last-minute follow-ups.

Who uses California vendor license tracking

California vendor license tracking is especially useful for:

California HOA and community association managers
California property managers
California small businesses working with contractors
General contractors managing California subcontractors

If you work with licensed contractors in California, TrackMyVendor is built for you.

California contractor license lookup FAQ

How does California contractor license verification work?
TrackMyVendor syncs with the CSLB (Contractors State License Board) database daily. When you add a vendor, you can search for their license and we'll automatically verify it against official state records, track expiration dates, and alert you to any status changes.
What California license classifications do you cover?
We cover all CSLB license classifications, including Class A (General Engineering), Class B (General Building), and all C specialty classifications such as C10 (Electrical), C20 (HVAC), C36 (Plumbing), C39 (Roofing), and more. Our database includes hundreds of thousands of California contractor licenses and is updated daily.
What happens when a California contractor license expires or gets suspended?
You'll receive email reminders at 90, 60, 30, and 7 days before a license expires. If a license is suspended by the CSLB for any reason (workers' comp, bond, or other issues), the status updates automatically, making it easy to identify which contractors have compliance issues.
Can I track multiple licenses per California vendor?
Yes — you can track multiple licenses per vendor. This is common for California contractors who hold licenses with multiple classifications or separate licenses for different business entities.
What is a C-10 California contractor license?
A C-10 license is issued by the CSLB and authorizes a contractor to install, construct, maintain, repair, and alter electrical wiring, fixtures, appliances, and equipment. It is one of the most common specialty contractor licenses in California. TrackMyVendor can verify any sub's C-10 license status and alert you before it expires.
How do I look up a California contractor by name?
The CSLB allows searches by license number, business name, or owner name at cslb.ca.gov. TrackMyVendor's California lookup tool lets you search by license number and immediately see status, classification, and expiration — and optionally add that contractor to your tracked roster for ongoing monitoring.

Start California contractor license tracking today

Simple California contractor compliance software for HOAs and small businesses. No enterprise complexity — just easy CSLB license lookup, verification, and tracking.

Start free — track up to 25 vendors

No credit card required

Explore More

Texas Licenses

Search Texas professional licenses

Florida Licenses

Search Florida professional licenses

Washington Licenses

Search Washington L&I contractor registrations

Oregon Licenses

Search Oregon CCB contractor licenses

License Verification

Search 1 million+ professional licenses

COI Intelligence

AI-powered insurance certificate extraction

Vendor Management

Organize all your contractors in one place

CA License Requirements

California CSLB license classes and trades

CA Insurance Requirements

Sub insurance requirements for California GCs

General Contractors

Compliance tracking for general contractors

Plans & Pricing

View plans and start your free trial