Become a Vendor

Home Contracts & Procurement Become a Vendor

Thank you for your interest in doing business with the Housing Authority of the City of Los Angeles (HACLA). Current vendors login to iSupplier Portal here.

Vendors seeking to sell goods and/or provide services to HACLA must follow a two-step process:

  1. Register on our secure iSupplier Portal. Supplier instructional videos are provided to assist you with registration and regular use of your Supplier account. Questions can be directed to 

    Once you have registered and been approved, you will be able to view purchase orders as soon as they are approved, check your payment status, and update your information when necessary.

  2. Vendors must also register with the Regional Alliance Marketplace For Procurement (RAMP). This free service is provided by the City of Los Angeles and the Los Angeles Business Council. RAMP provides users with information concerning all contractual opportunities offered by the City of Los Angeles and its affiliated agencies and departments, including HACLA, in one convenient location. Instructions for registering with RAMP are included on their website.

  3. If you wish to be contacted for smaller procurements (up to $250,000) you must register with both RAMP and iSupplier.

If your business is a Minority Owned Business (MBE), a Women's Business Enterprise (WBE), or Small Business Enterprise (SBE), please make sure to identify your business as such in Business Classifications, License & Insurance.

If your business qualifies as a Section 3 Business, submit your  Section 3 Business Certification form to be added to the Section 3 Business Registry. Certified Section 3 Businesses are entitled to receive bid preferences on certain procurement opportunities and may receive subcontracting opportunities.

HACLA requires that its vendors shall be paid by automatic deposit. Questions regarding setting up and maintenance of your banking account can be directed to 

Access Additional Vendor Resources

General Vendor Information

All invoices must include the following information:

  • Invoice number
  • Purchase order number
  • Delivery location of goods or services
  • Name of Housing Authority staff that placed the order
  • Vendor name on the invoice must be same as on the purchase order

Failure to follow these instructions will result in a delay in payment!

Questions regarding invoice submission can be directed to

All invoices must be sent directly to HACLA Finance Department Accounts Payable. Please do not send invoices to the ordering department.

  • If submitting electronically, please email to
  • If submitting by mail, please send to:

    Housing Authority of the City of Los Angeles
    HACLA Accounts Payable
    2600 Wilshire Blvd., 4th Floor
    Los Angeles, CA 90057