In the US once a certain number of people hold stock you have additional financial disclosure laws. But if it's owned by a single owner / family, you're never forced to go public regardless of revenue. That wouldn't make any sense, since you'd basically be forcing the owners to sell their shares whether they wanted to or not.
I took the comment as meaning "go public", somewhat confusingly, in a colloquial sense of "not be stealth" or "go public with their numbers" rather than "becoming a publicly owned, stock-market-traded company". The latter is indeed not the case in Canada; you can have a large privately owned company. But above a certain threshold you have to at last disclose annual revenue figures.
Sorry, yes, I meant become publicly trade-able. I assume this is done to force companies over a certain size to open their books? Maybe I've misunderstood how it works in Ontario/Canada as well, considering the other comments mentioning the number of shareholders.
That was also based on the number of shareholders, not the number of employees. Facebook began issuing RSUs, which don't count towards the limit, to employees when they started approaching the 500 shareholder limit, but I believe trading on SecondMarket pushed them over 500.
Also I think Facebook was originally a partnership and then converted into a DE c-corp. I don't think they were ever a CA company.
Not at all. What you're referring to has to do with exceeding a certain number of shareholders. In fact many Fortune 500 companies are privately held. Koch, SC Johnson, etc[1], not to mention the myriad large companies that are taken private by private equity firms.