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?