www.Gamedevmap.com would probably be a better place to start than wikipedia. But it lists a lot of media companies and very small developers that do things like mobile puzzle game clones. So not all places listed would have full time character artists and a large number of them probably contract characters or have artists…
It may seem a little shocking at first, but there are whole regions that are completely not represented on here, and some that are not as well known to the general public here in the US, like whats going on in Eastern Europe? Russia? China? India? Korea? Japan? I have no clue, but there are games coming out of there or…