The Blue Knights consortium are among four bidders to have submitted offers for Rangers and the club could exit administration before the end of the season.
The Paul Murray-led and Ticketus-supported group made their offer before Wednesday's 5pm deadline along with three rival consortiums.
A group from Singapore, a group from the USA and a group from Europe, and specifically Germany, are also understood by Sky Sports to have made bids.
Rangers administrators Duff & Phelps will now consider the offers to decide which is the best deal to accept, a conclusion they hope to reach next week.
The administrators will think about the different scenarios regarding the possible inclusions of company voluntary agreements or liquidation, but they do hope Rangers could exit administration before the end of the season.
David Whitehouse, joint administrator, said: "Following our announcement on March 30, that best and final bids for control of Rangers Football Club should be submitted by April 5, I can confirm we have received four bids by close of business today.
'Positive and constructive'
"The bids are structured in various ways but I would describe them as positive and constructive.
"The administration team will now analyse these bids over the forthcoming days and hold discussions with relevant parties to gain further understanding of the details of their bids.
"It will be our intention to accept an offer next week and this will be followed by a period of due diligence and exclusivity.
"At this stage, we cannot be precise in timescale but estimate that an exit from administration before the end of the season is achievable.
"We appreciate the need to conclude this process as quickly as possible.
"It is, however, most important to secure the best possible outcome for creditors, Rangers Football Club and its supporters."
Brian Kennedy, the Sale Sharks owner, is not thought to have made any bid.