Yes, quite a few climbers in the Ohio area. Not a lot of training options though.
I don't use facebook or cell phones so that isn't an option to connect with other climbers.
Earth Joy (Cincinnati/KY area) which is owned by the Byrnes is one of the only facilitators training options in the state. The only problem is Earth Joy seems mostly interested in expanding their territory and business with their training, not necessarily training people to start their own business or company. I contacted them some time ago and they would only train someone to be a facilitator for them at a 3:1 ratio. Earth Joy aggressively encouraged me to train so I could facilitate climbs in my area for their company (not what I wanted but certainly what they wanted).
I hear
Cornell university
has a tree climbing course that is small scale and can be customized as needed. It is also slightly closer then Alanta.