Vendor Relations
Provides vendors with assistance on bids, awards, registration, and information on certification as a small business.
(323) 267-2725
Monday – Thursday 7 a.m. – 5 p.m.
ISD Hotline
Provides help for any other questions or customer service issues.
(323) 267-3108
Monday – Thursday 7 a.m. – 5 p.m.
Vendor Payments Inquiry
Provides assistance with invoice payments for ISD procurements and contracts only. Each County department has their own Accounts Payable Unit.
(323) 267-2960
Monday – Thursday 7 a.m. – 5 p.m.
County Operators
Provides information on how to contact all County departments and services. It is supported 24 hours a day, 7 days a week.
(213) 974-1234
24 Hours a day – 7 Days a week
Vendors may alternatively choose to utilize the following websites for assistance as indicated below.
Register as a LA County vendor
Small business certification
Gives certified companies a 5% preference on bids for all California Counties. Transfer to the State of California’s website
Doing business with the County
To see open bids and vendor fairs, County procurement contacts, etc. There are also links to the state site above and registration for the local women and minority owned companies with Office of Small Business.