Re:Build lands $2.1 billion; Kalshi adds $1 billion in big funding week

This week's list shows investors still willing to commit large sums to startups that pair software with physical operations. Re:Build, a six-year-old Framingham, Massachusetts company, partners with industrial firms from product design through large-scale production, and its $2.1 billion round was led by General Catalyst and JPMorganChase. Kalshi, a New York-based predictions marketplace, raised a $1 billion Series G led by Wellington Management and Sequoia Capital. Those two deals anchored a week in which construction automation, biotech, batteries and enterprise AI also appeared among the top ten. Bedrock Robotics, for example, raised $600 million for autonomous heavy equipment, while Dren Bio closed on $350 million for antibody therapeutics. The spread of sectors suggests the appetite for large checks is not confined to a single corner of the market.