Both of the companies cited as examples early on the the article, Microsoft and Apple were basically started by a couple of guys in a garage (or dorm room). VC wasn't involved until later stages. Probably most of their early funding came from parents. There are plenty of things that don't need VC funding to get going - they can either be self-funded or with loans from relatives in the early stages. At some point the decision can be made as to whether VC is needed to expand or if it's just fine to stay small.
In the 90s my wife worked at a software company that makes scientific imaging software. They have a nice niche and continue to sell their software into academic and research labs. They never had more than about 7 employees - now about 5. It's a decent business that never needed VC funding and has gone for about 30 years now.