I'll second this with more than just an upvote: at my previous VC backed startup, for the first threeish years both the primary VC firm who funded us, and their

I'll second this with more than just an upvote: at my previous VC backed startup, for the first threeish years both the primary VC firm who funded us, and their other investment companies, represented around 70% of our customer base (<$5M ARR total). I know the VC firm itself didn't actually pay (well, they were paying in other ways). We eventually grew out of it.