U.S. AI startups dominate biggest funding rounds of the week

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U.S. AI startups dominate funding

Highlights

Mirendil led U.S. startup financings for Nov. 7-13, 2026, with a $1 billion Series A focused on agentic AI, backed by Kleiner Perkins and Clearlake Capital.
Mercor raised $750 million Series D at a $20 billion valuation, and Torus secured $500 million to launch its modular AI infrastructure product, Foundry.
Investor capital concentrated on AI infrastructure and core AI startups, driving multibillion-dollar valuations for companies like Path Robotics, LangChain, and Nominal.

Largest rounds tracked for Nov. 7-13

As reported by Crunchbase News, Mirendil tops the week’s announced U.S. startup financings with a $1 billion Series A led by Kleiner Perkins and Clearlake Capital for its research and development-focused agentic AI business.

Mercor follows with $750 million in Series D funding for its platform linking AI developers with human experts for model training and evaluation, a round that values the San Francisco-based company at $20 billion. Torus also ranks among the largest deals after announcing $500 million in growth financing led by Magnetar Capital, alongside the launch of Foundry, its modular AI infrastructure product for inference compute.

Other sizable AI-focused raises include Path Robotics with $300 million in Series E financing at a $2.45 billion valuation, and LangChain with $300 million in Series C funding at a $3 billion valuation. Nominal raised $240 million at a $3 billion valuation for hardware engineering tools, while Mavria says it has raised $130 million in pre-seed and seed funding to date and launched publicly at a $1 billion valuation.

Outside AI, Imprint secured $130 million in new funding at a $1.9 billion valuation, Delix Therapeutics closed a $100 million Series C, and Databento raised $100 million in Series C funding at a $1.1 billion valuation. Rox also announced a $100 million Series B financing for its AI sales automation platform.

Investor appetite stays focused on AI infrastructure

The week’s deal flow shows investors are still backing companies tied to core AI development, from model training and agent governance to power, compute and robotics applications. Several of the biggest rounds also come with multibillion-dollar valuations, indicating that capital continues to favor businesses positioned as foundational parts of the AI stack.

Crunchbase says it tracked the largest announced rounds raised by U.S.-based companies for the period of Nov. 7-13, 2026, using its database. It also notes that most announced rounds appear in the database, although some may be added later because of reporting delays.

As noted in our earlier article, Mercor Series D funding valued the AI training startup at $20 billion.

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