Good to see a new FRC team coming to RI. Historically Raytheon has been the largest Financial supporter of teams in RI. iGUS is located in East Providence, and has been a strong supporter, especially with part donations. Going back a bit further, Teknor Apex and Cooley Group both in Pawtucket have sponsored now defunct teams in the past. To the best of my knowledge, 3280 was the only team that has existed in the Providence Public School System (at Providence Career and Tech) but they no longer exist.
There are some strong mentors floating around RI who may be able to offer more advise. I am no longer in RI, but can provide some contact information.
In Providence, I would recommend contacting Mike Day with team 1350, they at one point anyway worked at Brown, in the engineering building, though I haven’t talked to them in a few years.
Miki Oliver is a Woody Flowers award winner, and was running the team at Providence Career and Tech. He is now running 5738 and is well plugged in with all of the teams in the area.
Teams 78 and 121 are both very active, and have stong mentor groups, I am not sure who is currently running either of the teams, but if you were to reach out to either team I am sure they could get you in touch with the right people. Both have active Chiefdelphi members.
If you have trouble getting in touch with anyone, send me a PM, I can help get you through to them, I just don’t want to post anyone’e personal contact info publically on here.