I announced BugMuncher here (since been renamed to Saber Feedback - https://www.saberfeedback.com), not sure if it counts as a successful startup, but it's been profitably paying my wages for a couple of years :)
Thanks! I'm not aiming for explosive growth or a huge exit, so it's probably more of a 'life-style business' rather than a startup, but that suits me just fine :)
Good to hear that. Best of luck.