> Could you name one or two of those that are Google's (Alphabet's) size don't contribute?
All of them, including Google, because they are legally prohibited from it.
Google's PAC donates, but not with Google funds, because corporate PAC donations can't come from corporate treasury funds.
There are some large companies that lobby but don't operate PACs (IBM and Apple for instance.) It's debatable whether this is better or not, but it's certainly a different shape of political engagement.
All of them, including Google, because they are legally prohibited from it.
Google's PAC donates, but not with Google funds, because corporate PAC donations can't come from corporate treasury funds.
There are some large companies that lobby but don't operate PACs (IBM and Apple for instance.) It's debatable whether this is better or not, but it's certainly a different shape of political engagement.