At what revenue would it start calling a full company rather than just a side-project? It's a little different for Gumroad because they started as a company wi

At what revenue would it start calling a full company rather than just a side-project? It's a little different for Gumroad because they started as a company with an office and became this, but for many side projects, they start out without meetings, without offices and remain that way earning a couple of thousand USD per month.