I'm one of the authors of this post and plan on releasing an updated version with some companies that we missed on the first pass. If you know of other substantial startups that went far before raising capital, please let me know: JoeFlaherty@FounderCollective. The current list of misses includes: + Grammarly + 37 Signals/Basecamp + Zip Recruiter + Outcome Health + Wistia Who else?
i'm sure you've seen the interviews on indiehackers.com, but there are many more bootstrapped companies on their way up! many to watch out for.
In some cases we featured some companies that had $10M+ revenues and extraordinary success in PR (Cards Against Humanity) or found some cool funding method (e.g. Kickstarter and CMON). LMK if there are any IndieHacker interviews you think deserve inclusion.
Thanks!