> their reasoning was: Microsoft and Google are Billion dollar companies.

Did you ever see that written down. Or was it an assumption or rumour?

I ask because I specifically advise against that thinking and debunk the "big company = trustworthy" fallacy. But what I find is that actually there is appropriate low trust of US big-tech amongst the C level, but they are compelled to use Microsoft or whatever for non-technical/non-security reasons.