Just to provide even more useless information ...
The "major" non-human races are: Aslan, Vargr, K'kree, Hivers, Droyne. (All described above.) All of these races, except the Droyne, control large sections of "Charted Space".
There are uncounted numbers of "minor" non-human races. It seems that any time a setting is published for Traveller, the author(s) are compelled to create at least one new minor non-human race. There are dozens known. Some of the classic ones are the: Bwaps (administrative newts), Ael Yael (pterasaur like), Virushi (rhino-like gentle giants), Ithklur (violently poetic lizards), Vegan (alien desert dwellers), Llellweyloly (plant-like), Ebokin (insectoid). Again, there are many, many more.
There are three types of human races. The "major" races control large empires of their own. The "minor" races were (like the Vilani and Zhodani) created by the Ancients (as were the Vargr). The geneered races were developed by other humans.
The "major" human races are: Vilani, Zhodani, Solomani. (Again, described above.)
There are many "minor" human races, some of which have never been identified. Some of the more well known minor human races are: Darrian, Floriani, Geonee, Luriani, Dynchia, Iltharans, Suerrat, Kargol, Answerin, Irhadre, Yilean. All of these races have noticable divergence from the Solomani "mainline".
There are only a few geneered human races. The two classically known ones are the Jonkeereen (desert nomads) and the Nexxies (fully aquatic). There are probably more, but those two are the only ones really detailed.
Finally, there are many small empires run by the same race. For example, the Solomani run the Third Imperium (joinly with the Vilani), the Solomani Confederation, and the small Sword Worlds empire (plus several others I can't think of).