List of 5 years old YC companies with less then 10 people
ycombinator.com
ycombinator.com
I tried to use "5+ years" as a proxy for survival, but that is a very weak metric as many companies are inactive, had dead domains or the cofounder LinkedIn showing a different story. But the "5+ years" does remove fund raising companies.
Most folks in HN dream of having a solo business with them being the owner-operator. This list provides an interesting database of things that spans from "Boeing for electric planes" to essentially job-boards or newsletters.
I would absolutely love to hear what the conversation is between YC and these founders.