The Bears have met with major Chicago businesses over the last month to sell naming rights to added space at their Lake Forest headquarters.

The team is soliciting a 10-year title sponsorship that is estimated to bring in anywhere from several hundreds of thousands of dollars up to $2 million annually, according to published reports.

But the name "Halas Hall" will not change, Bears spokesman Scott Hagel said. The price of the renovations is expected to run more than $20 million.

Other NFL teams, such as the Giants and Eagles, have sold naming rights for their entire practice facilities for more than $2 million a year.

The Bears do not own Soldier Field and therefore cannot sell the naming rights to the stadium. If the Bears strike a new naming rights deal for the renovated portions of Halas Hall, it will be the first naming rights deal in the team’s history.