I haven't got a cofounder (I do as much as I can myself and I outsource the rest), mainly because I haven't found the right person/people yet. I know that by b

I haven't got a cofounder (I do as much as I can myself and I outsource the rest), mainly because I haven't found the right person/people yet. I know that by being a single founder I can't share the workload, and I don't really have people to turn to when everything breaks at once. I also know that my startup deals with extremely abstract concepts and that its been easier to 'hold it all in my head' than to have to work with the potential cofounders I had available when I started my project. The big kicker for me is that I knew that without a cofounder I had no one to blame but myself if things went wrong. I find this hugely motivating, but I could also see it a major reason for people to fold too. For me it was a networking issue more than anything. This is my first project and I didn't know anyone that I thought would be appropriate fit for my project. I would rather build stuff than do meetups, though I'll probably start attending more after I launch. If I did find the right people then I wouldn't hesitate to bring them on board. I just couldn't find them and rather than wait I've done the best I can to make a successful startup. This was the right choice and things are going fairly smoothly. I personally think that the number of cofounders for a startup to be successful is entirely dependant on the circumstances - its product, its market and its goals. (I realize that this is an absolute copout of an answer. Sorry.)