From a review of companiesmarketcap.com, of valuetoday.com and of Google Finance websites and SEC filings, there were 41 Companies headquartered in California with very recent stock markets caps above $50 Bil.
From Company financials contained in the SEC website, the table below shows the Audited Gold-Standard US GAAP Consolidated Net Income (Loss) from Continuing Operations for each of these 41 largest California Companies for annual year 2021, Biden's first year in office, for 2020, Trump's last year in office, for 2016, Obama's last year in office and for 2008, Bush's last year in office.