Unfortunately you're not going to find much in Rhode Island. I think the 4 closest clubs are all out of state...
SkyJumpers Connecticut - located in Norwich, CT approximately 50 miles away. Head coach is Russ Versteeg (He's "Russ" on this board)http://www.skyjumpersct.org/
MIT Pole Vault Club - based at MIT in Cambridge, MA approximately 55 miles away. Head folks are Patrick Barragan and Nate Ball (MIT PV Coaches)http://www.facebook.com/groups/67307555519/
New England Pole Vault Club based in the Boston area approximately 45 miles away. Head coach is Brenner Abbott (Northeastern University PV Coach)http://web.mit.edu/barragan/MITPVC/
Patriot Pole Vault Club - based in Westborough, MA & Shirley, MA approximately 40/60 miles awayhttp://www.patriotpv.com/
You can also contact Coach John Hoogasian from Holy Cross - he has been known to help several post-collegiate vaulters as well.
Can't go wrong with any of these folks. Of course I'm slightly partial to the Patriots :-)
Feel free to contact me if you have any more questions
Patriot Pole Vault Club
"will vault for food"