We used a few: Fundersclub, Angellist and Microventures.

We did this in 2013 and 2014, and it was a necessity as we couldn’t get a traditional institution. Since then, crowd funding has matured and become a much better option, imo. I often recommend the 3 we used to founders.

Pre-seed Investor. Email: ash@sterlingroad.com. B2B, US only. I work with founders for 3 months before investing. More info: http://SterlingRoad.com/process

Pre-seed Investor. Email: ash@sterlingroad.com. B2B, US only. I work with founders for 3 months before investing. More info: http://SterlingRoad.com/process