This is a request for bids that will result in multiple contracts.
The job is to come up with rough ideas for a logo design. Each of the selected bidders will be asked to come up with a few ideas for logo designs. Once we have decided which we like, we will negotiate with the creators to produce more complete versions.
Again, because this posting is for rough ideas only rather than full logos, bids should not be for the creation of a full design. You are being paid for the preliminary work only, and are competing for the full design project, which will be negotiated later. Therefore, I would expect bids to be in the range for between 0.5 and 2 hours' work; enough time for a quick ideation and mock-ups.
Some follow-on work is also likely.
(The details of the project will be communicated to those selected.)