Boston, Los Angeles, San Francisco and Washington are the cities still in the running for a possible U.S. bid to host the 2024 Summer Olympics.
The U.S. Olympic Committee announced the U.S. finalist cities Friday.
"(I) look forward to working with the USOC, with my fellow mayors in Oakland, San Jose and other cities, and with people from throughout the Bay Area in this exploratory phase," San Francisco Mayor Ed Lee said in a statement.
Former Olympic swimmer Anne Cribbs of Palo Alto is part of an exploratory group considering bidding for the games.
Cribbs, who led a failed Bay Area bid for the 2012 Olympics, said in an email that discussions are "very preliminary."
She added that others involved include the Giants' Larry Baer, WestBridge Ventures' Steve Strandberg of San Francisco and Lee.
San Jose officials said they would be delighted to host events at their venues, such as the SAP Center, but the city does not have any money to help.
The 49ers have not been approached about hosting any events at Levi's Stadium, which opens in August in Santa Clara.
Los Angeles hosted the 1932 and 1984 Olympics. The other three cities would be first-time hosts.
There's an arduous and expensive process facing any potential bid city before the International Olympic Committee awards the Games in 2017.
Over the next six months, the USOC will decide whether it even wants to submit a bid. The past two U.S. candidates suffered humiliating fourth-place finishes: New York for the 2012 Olympics and Chicago for the 2016 Games that went to Rio de Janeiro.
If the USOC goes ahead with the bid, the U.S. city would find itself in a spirited battle. Paris, Rome, Doha (Qatar) and Istanbul are among those that could enter the race. The IOC has also long stated a desire to bring the Olympics to Africa for the first time.
Staff writers Elliott Almond and Mike Rosenberg and the Associated Press contributed to this report.