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Find customersHow it worksCustomersUse with ClaudeAbout
How it works

One search. Four kinds of customers. A source and date on every line.

  1. 01

    Tell CAMBE what you sell

    Describe your work in a few words, or paste your website and CAMBE reads it.

  2. 02

    See who buys it

    Customers ranked by fit, from state departments and utilities to prime contractors on $1B+ projects.

  3. 03

    Clear the gates

    Each customer lists what you still need to register for, and which certifications could give you an edge.

Gate

A registration or license you need before a customer can hire you. Each one comes with a link to get it.

Department of Industrial Relations (DIR) public works contractor registrationContractors and subcontractors must be registered with DIR to bid on or perform work on California public works projects. Missing registration means bids can be rejected and penalties apply.
Recognized certification

A third-party certification a customer recognizes. Worth knowing about, never required to compete.

California Small Business (SB) certificationState certification that counts toward the small business participation goals on California state agency contracts. Matters to independently owned firms with 100 or fewer employees (including affiliates) and average gross receipts of $19 million or less over three tax years, or manufacturers with 100 or fewer employees.
Who CAMBE searches

The customers that buy the most in California.

01

State agencies

Every department that reports purchases to Cal eProcure, ranked by what it bought in the last year, plus the University of California and the High-Speed Rail Authority.

02

Utilities

PG&E, Southern California Edison, SDG&E, SoCalGas and the water and telecom companies that report diverse spending to the California Public Utilities Commission (CPUC) each year.

03

Prime contractors on $1B+ projects

The firms building California High-Speed Rail (Phase 1; Merced-Bakersfield initial service), Southeast Gateway Line (Slauson/A Line to Pioneer segment) and more, and the subcontracts they need to fill.

04

Large companies

Health systems, tech, life sciences and entertainment companies with supplier programs open to small businesses.

Note that most of these companies do not publicly compete contract opportunities.

Use with Claude

Ask in plain English. Get customers with sources.

Connect CAMBE to Claude once. Then ask who to call first, what you’re missing, or how to pitch a customer.

Set up in about a minute
CAMBE connectedExample
I’m an electrical contractor in California. Who should I look at first?
Start with AT&T. What they buy: AT&T spends most on electronic and electrical network equipment, then business services, specialty and general construction contracting, and industrial/computer equipment.One step first: AT&T supplier registration.Source · AT&T 2025 GO 156 report, results by SIC code (p. 15) · checked Oct 8, 2026