The outfitter in Kent does shuttles:
Backcountry Outfitters
Kent, CT
(860) 927-3377
[email protected]
www.bcoutfitters.com
Bear Mtn., NY to MA/VT
Also:
(Mr.) Dana Murphy
Branford, CT
(203) 488-1878 call anytime
[email protected]
Port Clinton, Penn., north through
New Hampshire, possibly Maine.
I've used both, would use both again. Dana was substantially cheaper, but prefers longer distance shuttles to make his travel time worthwhile. I'm not sure how far your needs are. Bothe are very nice folks, give 'em a call.
Could also find others via the ATC shuttle list:
http://www.appalachiantrail.org/docs/default-document-library/at-shuttles-parking-vandalism-5-2-2012.pdf