I have presented a list here of alien races with I the G1 and IDW Comic book series of the Transformers. There is also a list of alien races from the Farscpe franchise. the reason I put those races on the list is because I personally believe that the events in the Farscape series could also take place in the Transformers G1/IDW comic book series along with other alien races from other films and franchises as well. enjoy

List of extraterrestrials in the Transformers G1/IDW series.
Saturnians
Jovians
Martains
Mercurians
Venusians
Uranians
Humans
Shuxxoid
Irari
Oxtoxll
Pangmee
Chian
Fesstorli
Takgrains
Sleestalk
Prometheans
Xenostrikers
Nightstalkers
Klendathueans
Aguareans
Liztaurs
Vetorns
Old ones
Unoggy
Sangeili
Mondoshawan
Repnorians
Botans
Puckamaren
Prawns
Mangalore
Stealth Goblins
Hoporial
Slyjijni
Masters
Lithians
Dwang
Slithord
Shadowbird
Aeronite
Anterean
Fix-its
Engineers
Strangers
Eterniains
Abyssians
Vetalaa
Igrum
Illtroxe
Hatchback
Gorger
Zoreckians
Urumolki
Flopglopple
Micro
Occutta
Sinistro
Electrunian
Lobadoptorians
Warpens
Tordum
Boggle
Loborains
Texeuians
Vidian
Kindoun
Pugeum
Shelom
Centroian
Vestorps
Light hearts
Wyan
Radiate
Regul
Thrint
Cinruss
Cybertronian/Autobot/Decepticon
Xenomorph
Utaja/hish
Thunderans
Mutaians
Vox
Slendorean
Despacians
Enlightend ones
Fire guards
Dir dir
Crier
Leffe
Rootix
Nicle
Lutine
Victil
Onobachi
Squidle
Furle
Tunctipun
Selone
Anthog
Ging
Gorix
Squmean
Urlon
Urlisian
Urlynn
Darian
Voltarian
Centuari cyborg
Zilla
Yutian monk
Hoddie
Glactican
Androminie
Gilfry
Talloner
Giarn
Tilzin
Eldor
Cryell
Gydon
Lortonoi
Vartains
Shriekan
Therk
Cooparian
Quintesson
Slave drone
Pnume
Demu
Salamander
Overlords
Cygnan
Povian
Dominion
Terran
Seekers
Stone men
Arloian
Pryexx
Mertel
Podlore
Sloreians
Lxlian
Lurmen
Greys
Aquanaut
Selenite
Alpha Centuarian
Grass sniper
Zoreckleans
Hellaitrix
Eel spider
Cray lore
Clockwork alien robot
Krell
Rocklon
Gwarnian
Slendorean
Despacians
Profets/san shyuum
Jiralhanae
Kig-yar
Mgalekgolo
Yanme’e
Battle Beasts/ Anmitians
The Vok
Slendorean
Despacians
Kluthoreans
Shutorns
Dwellians
Krytons
Juraians
Gargoyles of Nexus 2
Burasians
Chomskians
Craylons
Sub-Atlantians
List of aliens in the Andromeda Galaxy with in the Transformers G1/IDW universe (Farscape franchise)
Acquaran
Ancient
Banik
Barken
Billean yard rat
Boolite
Brindz hound
Budong
Builder
Ch'Talla
Charrid
Clansmen
Colarta
Coreeshi
Delfarion
Delvian
Denean
Dentic
Diagnosan
Drak
Eidelon
Energy rider
Flibisk
Gomrex
Grennij
Grisoldian
Grudek
Halosian
Han-jee
Human
Hybrid Scarran/Sebacean
Hynerian
Ilanic
Intellant virus
Interion
Jakench
Kalish
Kampek
Kanvian
Karack metallite
Keedva
Khurtanan
Kkore
Lakah
Leviathan
Lian
Litigaran
Lukythian
Luxan
Montim
Nebari
Pathfinder
Patriqu-ro
Pilot (species)
Plokavian
Predorian fly
Proprietor
Qatal mollusk
Relgarian
Saltici
Scarran
Scorvian
Sebacean
Sebaceanoid
Sgabba fly
Shakloom
Sheyang
Skreeth
Sorrent
Stranit
Sykaran
Sykaran worm
Tarkan
Tavlek
Telok
Tosnor
Trao
Traskan
Tregan
Trelkez
Trigopod
Venek
Vorc
Vorcarian blood tracker
Whaela'an
Wolaxian arachnid
Xarai
Ytrehoddish
Zenetan