Top Contributors, according to federal election data for Joe Biden (2020 cycle totals include subsidiaries and affiliates):
1) Bloomberg LP [Michael Bloomberg] $56,796,137
2) Future Forward USA [largely Dustin Moskowitz] $29,917,229
3) Priorities USA/Priorities USA Action [Hillary backers] $25,841,199
4) Asana [Moskowitz & Rosenstein] $21,937,902
5) Sixteen Thirty Fund [dark money] $19,874,655
6) Democracy PAC [George Soros] $19,000,000
7) Senate Majority PAC [Democratic billionaires] $12,371,874
8) American Bridge 21st Century [largely Soros] $10,260,573
9) Paloma Partners [Donald Sussman] $9,016,248
10) Euclidean Capital [James Simons] $7,006,805
11) Defending Democracy Together [Republican billionaires] $6,776,862