Key Takeaways
- • Mirendil, a developer of agentic AI for R&D, led the week's funding with a $1 billion Series A, with Kleiner Perkins and Clearlake Capital leading the round for the San Francisco-based startup.
- • Mercor raised $750 million in Series D funding at a $20 billion valuation, led by a long list of venture investors, to connect AI developers with human experts for model training and evaluation.
- • The vast majority of the week's ten largest U.S. funding rounds were AI-related, according to Crunchbase News, with infrastructure, agentic AI and manufacturing applications leading the list.
- • Torus ($500 million, led by Magnetar Capital), Path Robotics ($300 million at a $2.45 billion valuation, led by Georgian) and LangChain ($300 million at a $3 billion valuation, led by CapitalG) rounded out the top tier.
- • Non-AI activity included Imprint's $130 million fintech round at a $1.9 billion valuation, Delix Therapeutics' $100 million biotech Series C and Databento's $100 million Series C at a $1.1 billion valuation.
Summary
Crunchbase News' weekly ranking of the ten largest announced U.S. startup funding rounds for the period of Nov. 7-13, 2026 was dominated by artificial intelligence companies, though biotech, fintech and enterprise software also featured. Per the report, the list was compiled from announced rounds in the Crunchbase database, with the caveat that some late-week announcements may be subject to a short reporting lag.
Mirendil, a San Francisco-based developer of agentic AI technology for research and development, secured $1 billion in a Series A round led by Kleiner Perkins and Clearlake Capital, making it the largest round of the week. Mercor, a platform that connects AI developers with human experts for model training and evaluation, raised $750 million in Series D funding. The round set a $20 billion valuation for the San Francisco-based company, which was founded less than four years ago.
Infrastructure was another prominent theme. Salt Lake City-based Torus, a manufacturer of distributed power and compute infrastructure, announced a $500 million growth financing led by Magnetar Capital and introduced Foundry, a modular AI infrastructure product for inference compute. Mavria, which focuses on standardizing how AI infrastructure is developed, built and deployed, publicly launched and said it has raised $130 million in pre-seed and seed funding to date; its latest round, led by Paradigm, set a $1 billion valuation. The company's founders previously worked at the U.S. Department of Energy.
Agentic and applied AI companies also featured prominently. LangChain, which develops a platform to run, improve and govern AI agents, closed $300 million in Series C funding at a $3 billion valuation, led by CapitalG. Path Robotics, which develops physical AI for robotics and manufacturing with initial expertise in welding, raised $300 million in Series E financing led by Georgian at a $2.45 billion valuation. Nominal, a developer of hardware engineering intelligence tools, raised $240 million at a $3 billion valuation led by Lightspeed Venture Partners and Insight Partners. Rox, a San Francisco-based developer of an AI revenue agent for enterprise sales, announced a $100 million Series B led by General Catalyst and March Capital.
Non-AI rounds included Imprint, a payments, loyalty and customer intelligence platform for brands, which raised $130 million at a $1.9 billion valuation led by Khosla Ventures. Delix Therapeutics, a Bedford, Massachusetts-based company developing treatments for psychiatric and psychological disorders, closed $100 million in Series C funding led by Johnson & Johnson Innovation and SV Health Investors' Dementia Discovery Fund. Databento, a financial market data platform based in Salt Lake City, secured $100 million in Series C funding at a $1.1 billion valuation, led by Fifth Down Capital.
Mirendil, a San Francisco-based developer of agentic AI technology for research and development, secured $1 billion in a Series A round led by Kleiner Perkins and Clearlake Capital, making it the largest round of the week. Mercor, a platform that connects AI developers with human experts for model training and evaluation, raised $750 million in Series D funding. The round set a $20 billion valuation for the San Francisco-based company, which was founded less than four years ago.
Infrastructure was another prominent theme. Salt Lake City-based Torus, a manufacturer of distributed power and compute infrastructure, announced a $500 million growth financing led by Magnetar Capital and introduced Foundry, a modular AI infrastructure product for inference compute. Mavria, which focuses on standardizing how AI infrastructure is developed, built and deployed, publicly launched and said it has raised $130 million in pre-seed and seed funding to date; its latest round, led by Paradigm, set a $1 billion valuation. The company's founders previously worked at the U.S. Department of Energy.
Agentic and applied AI companies also featured prominently. LangChain, which develops a platform to run, improve and govern AI agents, closed $300 million in Series C funding at a $3 billion valuation, led by CapitalG. Path Robotics, which develops physical AI for robotics and manufacturing with initial expertise in welding, raised $300 million in Series E financing led by Georgian at a $2.45 billion valuation. Nominal, a developer of hardware engineering intelligence tools, raised $240 million at a $3 billion valuation led by Lightspeed Venture Partners and Insight Partners. Rox, a San Francisco-based developer of an AI revenue agent for enterprise sales, announced a $100 million Series B led by General Catalyst and March Capital.
Non-AI rounds included Imprint, a payments, loyalty and customer intelligence platform for brands, which raised $130 million at a $1.9 billion valuation led by Khosla Ventures. Delix Therapeutics, a Bedford, Massachusetts-based company developing treatments for psychiatric and psychological disorders, closed $100 million in Series C funding led by Johnson & Johnson Innovation and SV Health Investors' Dementia Discovery Fund. Databento, a financial market data platform based in Salt Lake City, secured $100 million in Series C funding at a $1.1 billion valuation, led by Fifth Down Capital.
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