Susan Collins

Below is a list of billionaires who have donated to committees raising funds for Republican U.S. Sen. Susan Collins and her Democratic challenger, Graham Platner.

The first table includes billionaires who appeared on the Forbes 2026 World’s Billionaire List and donated to the following political committees between January 2025 and May 20, 2026: Collins for Senate, Collins Victory Committee, Dirigo PAC, Susan Collins for Maine and Pine Tree Results PAC. Billionaire spouses who donated to these groups were also included.

The second table lists billionaires who donated to Graham for Maine.