Yes, there are, and I've found a bunch of them. I used to go to gangplank alot, but now I only get there about once or twice a month since I went from self-employment to normal employment.
I've not been involved in Heatsync other than to see some of the cool things they do. I was lucky enough to meet a bunch of the founding people on the day they came into Gangplank 2 to start their collaboration, though.
Out of curiosity, do you go to gangplank? Heatsync?