Nations of Sol

Sol's 'original' planetary and colonial powers still exist, and maintain an informal alliance with one another that has kept them from disappearing entirely from the galactic stage.

Accord of Venusian City-States - Floating cities and labyrinthine refineries. Manufacture high-spec and unique plastics, carbon fibers, etc. for use in research and extreme environments.

Earthgov - OSHA app c:

Kingdom of the Moon - The King of the Moon lives here.

Mars United Directorate - Produce a well-respected range of exo-vehicles. Space Florida. (They overdid it on terraforming.)

The United States Of America - yup. that's right. they still exist. just like you remember them!