I currently work for a ~150 person tech startup in Providence, Rhode Island. If there's any Casper users interested in an RI Casper User Group I'd be glad to host and be a speaker. I also host an IT meetup monthly for folks from any area of IT, and several of my co-workers host other meetups; devops, security, Javascript, etc.
If folks are interested, maybe November (After JNUC, Yosemite and 9/6 announcements) would be a good time?