I just heard today from Eli Cayer at the Urban Farm Fermentory in Portland, Maine. Great news for those who might want some hands-on experience in a commercial, community-oriented fermentation operation: he is looking for interns to help with production. Right now he is doing mostly ciders, but there are plans for other ferments and cultures in the future.
If you are local to Portland, and interested in spending some time learning in a commercial fermentory, contact Eli.