Now HM you know I don't ever promote outfitter services but because it's you asking, I'll direct you to the best one in all of Maine, the outfitter is "Cedar Ridge Outfitters",
owned and operated by Hal Blood and his wife Debdie.
I assure you Hal is hands down the best Bear guide you'll ever meet. You can find all kinds of info about HaL and his hunting history in almost every place you look, he's written books, has video's, operates as a guide,
I met him once at a Sports show, a heck of a nice guy with a great reputation in the industry.
Here's a few links that you might be interested in looking at.. Good Luck Big Woods Bucks, One of Hal's Books