If there are specific provisions in the tender announcement, such as pre-qualification and drawing lots to select several final bids, you can do it according to the announcement requirements. If there is no such writing, then how many companies are eligible to participate in the bidding.
Open bidding refers to a bidding method in which a tenderer invites unspecified legal persons or other organizations to participate in bidding by issuing a bidding announcement on public media, and selects the winning bidder from qualified bidders. Compared with public bidding, it is called invitation bidding.