When I applied about a year ago at TechStars, I was a single founder. I had a meet-up with David Cohen from the TechStars and asked him on this. He told me: "It's very difficult to run the business being a single founder. You should probably keep on searching and then just email me if anything has changed".<p>While I do believe that successful business can be created by a single founder, I don't think that this is an issue when you're searching for someone to invest in your business. Anyway, I wish you good luck.