As DLCTCG mentioned, Northeast Woodland Training is one of the GOL franchises, and they are VERY good at what they do. I really appreciate their organized approach and the time they take to explain "why" and don't just say "do this". The understanding goes a long way toward allowing you to adapt the techniques to different situations.
Main organization overseeing all of the trainers in the US can be found at
Game of Logging
There are 4 levels, and each one builds on what you learned in the previous levels. Regardless of how "advanced someone may be, you have to start with Level 1"
In my level 3 class years ago, the participants were all chatting during a break and talking about our background and what got us interested in the classes. It turned out that one of the participants in the class was a professional logger. He took the first 2 classe because it got him a break on his insurance. He started using the techniques, and came back for levels 3 & 4 a year later because he said it had changed the way he worked in the woods. He said it's not the only technique he uses, but he said he now uses it regularly since getting used to it.
There is another training organization that used to be connected to GOL, but split off. If I recall correctly, he is based somewhere in the southeast. He travels around a lot. I see that he's got a 3-day comprehensive training in Nort Carolina coming up in May. It culinates on storm damage work. Not cheap, but if he's anything like the GOL trainings, you' get a lot out of it. He also does single day sessions from time to time and in different places, if 3 days is more than you want to jump in to.
