Warren and Sanders want to break up big tech. Google employees like the sound of that because they're two of the top three in donations.
Google employee donations:
1. Warren - $87,066
2. Buttigieg - $73,319
3. Sanders - $58,266
4. Harris - $54,845
5. Booker - $23,921
The link shows where all these tech employees are donating. The two "surprises" are Amazon and Microsoft, where Inslee is Number 1 and 2 respectively, but he's the governor of Washington, so that explains those two.