Los Angeles County Office of Small Business(OSB) is a source of information on procurement opportunities, certification, financing, and technical assistance. OSB also serves as the County Procurement Technical Assistance Center (PTAC), funded by the U.S. Department of Defense (DoD) to help small businesses get contracts with prime defense contractors.

OSB provides links to web sites which contain information such as license and permits required when starting a business, upcoming events, and how to register to be a County, State, and Federal vendor.

OSB provides links to procurement web sites, not only with the 37 County departments, but also with the federal and state governments, cities and other public jurisdictions.

OSB provides workshops and training for businesses on how to sell goods and services to the County, the State, the federal government, and other public agencies in Southern California.