Sindicato

 - You can read about them in-game, there's a console in the right side of your Liset. Or go to the Relay and see their bases. Also, the WIKI has more information.

• Steel Meridian: A group of exiled grineer who wants revenge.
• Arbiters of Hexis: Tennos who wants to find their true potential through discipline.
• Cephalon Suda: A sentient being which thirsts for knowledge.

~x~

• Perrin Sequence: Merchants who wants to bring order and prosperity.
• Red Veil: "The only way to end the corruption, is by killing everything and everyone."
• New Loka: Thinks that humans were perfect and that's the only way of bringing restoration