Lutzka and Krooked were mentioned in the very first post of this thread
I feel like a lot of people forget or overlook that Foundation has had some of the best skaters of all time; Kirchart, Creager, Peter Hewitt, Drehobl, Shimizu
Also correct me if I'm wrong, but was Richard Angelides ever on the Workshop?
EDIT: Ty Evans was a vert skater for Powell