Basically no startup is by definition last forever. Either bought (and sometimes killed by kind of 'google' then) or more or less silently dies of lack of money

Basically no startup is by definition last forever. Either bought (and sometimes killed by kind of 'google' then) or more or less silently dies of lack of money. 1 in 100 (probably a very wrong number) can become a real company. So basically all the startups are candidates into the list you've mentioned.