Los Angeles County
Vendor Relations Office

Address: 1100 N. Eastern Avenue, 1st Floor
Los Angeles, CA 90063
Office Hours:  Monday-Thursday
8:00 am - 5:00 pm PST
Phone: 323-267-2725
Fax: 323-415-8521
Email:  Email Los Angeles County
 Vendor Relations
Website: Internal Services Department
Los Angeles County Vendor Registration
New Vendor Registration
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The first step in doing business with the County of Los Angeles starts with registering as a vendor. Registering as a vendor only takes a few minutes. Once you enter the website, you will be led through the registration process using easy-to-follow instructions.
Before you start your registration, please collect the following items:
  • An electronic copy of your IRS Form W-9 which will be attached during your registration.
  • Your California Sales Tax Permit number, if applicable
  • A List of the types of Products and/or Services your company provides
New Vendor Registration

If you are registering as a Company, please enter your Company's Federal Tax Identification Number.
If you are registering as an Individual, please enter your Social Security Number.

If you do not know your Company's Federal Tax Identification Number, please check with your accounting department for this information before attempting to register.

Please DO NOT enter your own Social Security Number in place of your Company's Federal Tax Identification Number.

If you have any questions, please contact County Vendor Relations at 323-267-2725 or by E-mail.
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