Crunchbase News ranked the largest announced funding rounds raised by US-based companies in its database for October 24 to 30, 2026, in an article dated October 30. The list is led by manufacturing startup Re:Build with $2.1 billion, followed by predictions marketplace Kalshi with $1 billion and construction-robotics company Bedrock Robotics with $600 million. Crunchbase notes that late-reported rounds may be missing.

The ten rounds

  • Re:Build, $2.1 billion (manufacturing): works with industrial companies and innovators from product design through large-scale production. Led by General Catalyst and JPMorganChase; round and valuation not disclosed. Based in Framingham, Massachusetts, six years old.
  • Kalshi, $1 billion (predictions marketplace): Series G led by Wellington Management and Sequoia Capital at a $40 billion post-money valuation. The company says its annualized trading volume exceeds $1 trillion. Based in New York.
  • Bedrock Robotics, $600 million (construction tech): Series C led by CapitalG and Emergence Capital at a $4.1 billion post-money valuation, with total funding of nearly $1 billion. It develops autonomous systems for heavy construction equipment. Based in San Francisco.
  • Dren Bio, $350 million (biotech): antibody therapeutics for cancer and autoimmune diseases, with the funds supporting advanced trials of its blood-cancer therapies. Led by Juvia Group and Lightspeed Venture Partners. Based in San Carlos, California.
  • Group 14 Technologies, $169 million (battery tech): Series D extension; makes silicon battery materials and plans a production facility in Sagunto, Spain. Investors not named. Based in Woodinville, Washington.
  • Firehawk Aerospace, more than $150 million (defense tech, tied for sixth): Series D led by Advent and Rochefort at a valuation above $1.4 billion; develops propulsion technology. Based in Dallas, seven years old.
  • Serval, $150 million (enterprise AI, tied for sixth): Series C led by Sequoia Capital at a $3 billion valuation; builds AI coding agents that automate enterprise tasks. Based in San Francisco, two years old.
  • General Compute, $100 million (AI infrastructure, tied for eighth): Series A led by Blackbird and Abstract. An AI cloud provider using inference chips from Cerebras Systems, SambaNova and Positron AI, which Crunchbase describes as Nvidia rivals. Headquarters not stated.
  • Foundry Robotics, $100 million (autonomous factories, tied for eighth): Series A led by Marlinspike; builds and operates autonomous factories. Based in Emeryville, California.
  • Hex Technologies, $100 million (data analytics, tied for eighth): AI-native data analytics platform, led by Peak XV and 137 Ventures at a $1.2 billion valuation. Based in San Francisco.

Sources and notes

This post is based on Crunchbase News, “The Week’s 10 Biggest Funding Rounds,” dated October 30, 2026 and covering October 24 to 30; Lens did not find a column for October 31 to November 6. Figures, valuations and company descriptions are Crunchbase’s, and Lens did not verify the individual rounds with the companies. The ranking covers US-based companies in Crunchbase’s database only.

Image: the San Francisco skyline seen from the Tiburon peninsula at dusk, by E bailey via Wikimedia Commons, licensed under CC BY-SA 4.0; cropped. Stand-in photo; it is not related to the funding roundup and does not show the events described.