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What VC?

Insight Partners. They evidently led the Series A for OP's last startup, which according to their LinkedIn is Numetric. Crunchbase tells you what you need to know: https://www.crunchbase.com/funding_round/numetric-series-a--...

I'm aware of Max Levchin doing something similar to a YC founder, but with the involvement of another VC at the time.