This one comes to mind: http://www.nastygal.com http://www.nastygal.com https://www.youtube.com/watch?v=VAVq-sW6LCA https://www.youtube.com/watch?v=VAVq-sW6LC

This one comes to mind: http://www.nastygal.com http://www.nastygal.com https://www.youtube.com/watch?v=VAVq-sW6LCA https://www.youtube.com/watch?v=VAVq-sW6LCA Not sure I'd call it a "tech" startup, but it definitely counts as a startup and a successful one. Apologies to #2 if I'm wrong about it being sole founder. I'd say it's more successful than some of the revenue-free entries on this list.