Depending on how you define richest Apple could very well be the richest. It has something like 200 billion dollars in cash in hand. I would be surprised if any company could match that.
https://www.macrotrends.net/stocks/charts/AAPL/apple/long-te...
So, rather than bring the money home at the high rate, Apple has been taking on debt for U.S. operations while waiting for (and perhaps lobbying for) another tax holiday.