While the proposal submission process is held as a joint event, it is not expected that if you have winning Bids, you would execute a contract with each of the Companies. The last step of the evaluation is for the Procurement Administrator to allocate the winning Bids from this jointly held bid process to each Company. This allocation aims in part to minimize the number of winning Bidders that have contracts with more than one Company. Your invoice would be sent to the Company (or Companies) that are your counterparties under the applicable supplier contracts.