You could try http://www.kima15.com http://www.kima15.com although ceding 15% might be too steep for the amount they invest given you have a working, sellable p

You could try http://www.kima15.com http://www.kima15.com although ceding 15% might be too steep for the amount they invest given you have a working, sellable prototype (I have heard Kima say they are sometimes willing to negotiate on this figure though). You could also try posting to angel list (not easy to get noticed there though unless you already have a bit of a network).