Sons of Tolaris
Established at some point after the repopulation of the surface after the vaults started failing, the Sons of Tolaris are the new Tolaris Corp. Whether they are truly related to the original board members and CEO, etc. or simply wealthy geniuses working together to restore technology to the people is unknown.
They are not well known among the populace as yet but seem rich in resources. Their stated goal is to restore technology for the people but there are also rumors that they are ruthless in their dealings.