Before anyone says it, I’m gonna say it first:
TECHNICALLY, Bruce Wayne himself hasn’t been a member of ANY corps, because
1. The black lantern Batman was actually a fake clone of him made by Darkseid to resemble his corpse
2. The white lantern ring he wore rejected him
3. He has only borrowed or stolen a green lantern ring from Hal Jordan
4. The yellow lantern ring rejected him because it could tell he had worn a green ring before

UNLESS you look at alternate universes like the one where
1. The green ring chose him over Hal Jordan when he was just becoming a vigilante
2. A green ring chooses Bruce right when his parents are killed, and he uses it as a child to kill his parents’ murderer