Kind of a misleading headline. Those candidates are raising the most from tech industry workers (both blue and white collar), not the companies themselves.

Companies cannot donate directly to political campaigns.

While technically true saying that is misleading, since companies can and do make political donations through PACs.

For example on November 12, “Google LLC NetPAC” donated $5000 to Devin Nunes’ campaign: https://twitter.com/Pinboard/status/1208199872668528641

But the money in Netflix PAC comes from employees of Netflix, not from the company.

Companies can make independent expenditures through a Super PAC, but companies cannot contribute directly to a campaign.

Decisions about how to spend the monies contributed by those employees are made by the company, though.

True, but the article's headline implies that they are.