The Ageless: Mature eldrae, galari, and anyone else who possesses the Lesser Immortality, such as everyone the aforementioned has sold immortagens to recently. See Immortality.
Lesser Immortality
Trope-a-Day: Immortality
Immortality: In a couple of forms. The natural immortality of the eldrae and galari, etc., is Type II Undying, without the disease (or, indeed, starvation) exception – at least where potent illnesses are concerned. This is also the type they’ve developed, named immortagens, and sell on the open market.
Noetic backups, in which one’s mind-state (or, if you like, soul) is recorded in digital storage such that you can conveniently be restored from backup if killed, adds Type IV Resurrective on top of that for those two species, and gives it to everyone else living in a modern and civilized polity, too. And their little dogs, too. Literally.
(They are, however, still working on A Means To Avoid The Heat Death Of The Universe.)