The Evernun Commandos are a coalition of aliens (compared to the Earth-side Humans). The Neon Warriors and the Vanguard are primarily Humans with roughly 24% of their total forces being aliens as well.
Tech level... Earth-side Humans haven't left our Solar System at all, and at the rate we're currently progressing, we'll still be in the Sol System for another 40k years... without outside interference. The other factions have better chances of finding us than we do of finding them. As far as everyone else, they have Hyperdrives and laser weapons, though they seem to think that guns are meant for orbital bombardment purposes only (if it ever gets that far for use at least)... oh, did I forget to mention that Earth developed robots, while everyone else works harder at getting their materials finished? (Yes, that's important, Earth-made goods are at a consistent quality comparable to the Chinese when compared to the rest of the Galaxy's variable quality which can be even worse than the Chinese at worst or on par with America at its height in the Industrial Revolution at best... all thanks to the robots.)