And still, how many businesses did California lose in 2018 and 2019? Less than 800 total. So out of the 40 million people that live here, 0.001% chose to leave every year.
I assume a business would have more than 1 employee?
There have been a few very large companies who have moved their headquarters out of state. From what I can remember, McKesson (top 3 drug distributor), Schwab.
Of course they are headquarters, not the entire companies, so it's still only a few thousand.
Regardless, I don't think California is hurting for companies. At least not right now.
In other words, I can't imagine very many businesses with lots of employees moving at all.