Summary List PlacementVenture-backed startups continue to be flooded with cash, kicking off 2021 with a record amount of funding. There were 184 mega-rounds — deals topping $100 million each — in the opening three months of the year in the US, according to a report from research firm CB Insights and PwC. To put that into context, private US startups raised $62 billion in Q1 2021, almost half of the record $133 billion achieved last year.