We have a very similar system, “buyandsell.gc.ca”. The U.S. has a program called GSA Advantage!, which almost mirrors an Amazon. If I'm looking for towels, I go and put in towels, and it brings up all the suppliers, and the prices are all listed. Have you considered that process, where, like their system, you go on and you choose, it prints out a purchase order, ensures payment, shows delivery date, and everything as opposed to a bidding process alone?
On April 24th, 2018. See this statement in context.