Crunchbase shares the top seed, early and late-stage investors by total number investments since January 2017; topping the list in seed stage investments was Y Combinator with 28 total fintech investments followed by Plug and Play and 500 Startups; Plug and Play topped the list in the early-stage category; Bain Capital Ventures led in late stage investments with 6 followed by General Catalyst, Khosla Ventures, Menlo Ventures, Spark Capital and Union Square Ventures who all completed 5 deals in the time frame. Source