ISTO (InterStellar Transport Operation)
After the giant immigration to space, not a lot of people or companies stayed behind on earth. because of this most cities got close to abandoned. decades after most people had left, some of the transport companies left behind on earth, decided to band together, and formed ISTO. they travelled into space, and quickly became a household name. they are fairly new arrivals, so they don't have a lot of colonies or stations, but they have made themselves a valuable ally to most other factions, by transporting goods, people, and ships.
Very heavily armored, but slow. main focus on electrobolt and emp weapons, with very little high damage weapons.
their ships usually are big heavy looking ships, with mostly grey, yellow and brown paint. some of the even bigger ship don't even have any propulsion, and are instead moved by smaller ships with tractor beams.
Quests: (I know you didn't ask for it but still)
some quests for pirates could see you robbing a ship from this faction, with you having to collect some unique resource you can only get from that ship
quests for this faction could also see you pull a big ship with a tractor beam. those kinds of quests