I don't believe that YC funded RudderStack, but they funded Segment indeed! It's not uncommon. If I have to guess, every batch or so have at least 2 companies directly competing with each over
hey! Co-founder of Freshpaint here. Yes, we're YC-backed along with Segment, so you're probably thinking of us. YC does often fund startups working on similar things.
Founder of RudderStack here.