They have been using little brownie bakers to make their cookies since the 1970s.
ABC bakers has been making girlscout cookies since 1937.
So I am not sure what company you think they changed to 15 years ago, but those are the 2 companies that bake their cookies.
You want to have a laugh, there is an episode of the Carol Burnette show where some girlscouts come up on stage and give her boxes of cookies during the opening monologue, and the boxes are HUGE, no they weren’t gag boxes, they were just the size they used to sell back in the late 60s early 70s.
There was a company called Burrys or Berrys or something like that which made my favorite. They were discontinued.