Linderman said that he and some others worked together in the early days to try and make the world a better place, but those people turned to work for their own good. Well, obviously one of those people was Linderman...but who were the others?
Ya know what I think? Well, originally, I figured that the leader of "Primatech" was one of them, but in .07% you find out that he's actually working for Linderman. My other idea was Nathan and Peter's mother. She's the perfect candidate and she said she knew about them before they ever did. The Haitian could even be involved, since we really don't know how she knows him.
Off-Topic: HRG is in the Disney Original, Cow Belles...i probably shouldn't know that