The NYT has published a useful graphic showing all the agencies with investigations into or regulatory battles with Musk's companies that have seen staffing cuts, including the firing of top officials.

https://www.nytimes.com/2025/02/11/us/politics/elon-musk-companies-conflicts.html

Elon Musk’s Business Empire Scores Benefits Under Trump Shake-Up

Government investigations into Mr. Musk’s companies are stalling amid President Trump’s firings and Biden administration resignations.

The New York Times
@briankrebs "And kids this is why we have laws about divestiture when people start working in government."