Capital's metric is dollars, not heads.
There have been several notable names. Peter Thiel, Larry Ellison, and Scott McNealy, off the top of my head.
Most Trump supporters kept it pretty much on the down low. Doug Leone (Sierra Capital) seems to be named most often, though even he broke after the January 6 Coup. Brian Krzanich (Intel) was, so long as nobody heard about it. Palmer Luckey (Facebook), David Blumberg (Blumberg Capital).
Vocally opposed: Meg Whitman, Marc Andreessen, and John Chambers (ex-Cisco), all notably conservative.
https://www.vox.com/recode/2019/9/17/20869679/donald-trump-s...
Keep in mind too that dark money and Citizens United most especially makes true support difficult to trace. Arguing that there are no names whilst the names that exist can and often do utilize secret funding mechanisms is highly disingenuous.