Regional Alliance Marketplace for LA (RAMPLA) Regional Alliance Marketplace for LA (RAMPLA) Browse RAMPLA to find unique opportunities for your business to contract with the City of Los Angeles. https://www.rampla.org/ Los Angeles Vendor Self Service (LAVSS) Los Angeles Vendor Self Service (LAVSS) As a payee/vendor, the City of Los Angeles Vendor Self Service (VSS) portal allows you to manage your own account information, view your financial transactions and much more. https://lavss.lacity.org