Series D Funded Artificial Intelligence Startups
The 50 most recent Series D rounds in artificial intelligence span late 2022 through November 2025, with disclosed amounts ranging from $9M (OpenSpace) to…
The 50 most recent Series D rounds in artificial intelligence span late 2022 through November 2025, with disclosed amounts ranging from $9M (OpenSpace) to $2.3B (Anysphere, November 2025). The San Francisco Bay Area dominates the geographic spread — Forethought, Supabase, Rescale, EvenUp, Groq, and Coralogix are among its entries — while Tel Aviv serves as a consistent secondary cluster, represented by AI21 Labs, Aidoc, Scopio Labs, Optibus, and Cortica. New York adds further density through Kalshi ($300M), Pathos ($365M), Astronomer, EliseAI, and Cyera ($300M).
Healthcare AI carries notable weight across the entries: Abridge ($250M, Pittsburgh), Proscia ($50M, Philadelphia), Suki ($70M, Redwood City), CytoVale ($100M, San Francisco), and Eko Health ($41M, Emeryville) all closed rounds in 2024–2025. AI infrastructure plays — Groq ($640M, August 2024), Lightmatter ($400M, October 2024), Supabase ($200M, April 2025), and Coralogix ($142M) — account for several of the larger disclosed checks outside Anysphere's outlier-scale round.
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Frequently asked
What are the largest disclosed Series D rounds in the dataset?
Anysphere's $2.3B round (November 2025, San Francisco) is the largest by a wide margin. Groq ($640M, August 2024) and Lightmatter ($400M, October 2024) rank next, followed by Pathos ($365M, May 2025) and three companies — Kalshi, AI21 Labs, and Cyera — each at $300M.
Where are most of these Series D AI companies headquartered?
California dominates, with San Francisco home to Anysphere, Forethought, Supabase, Rescale, EvenUp, and Coralogix, and other Bay Area cities adding Federato and Cresta (Palo Alto), Groq and Qventus (Mountain View), and Suki (Redwood City). New York is the second-strongest hub, with Kalshi, Pathos, EliseAI, Cyera, and Astronomer among its entries. Tel Aviv is the most represented non-US city, accounting for six companies including AI21 Labs, Aidoc, Scopio Labs, and Optibus.
Which sectors within AI attract the most Series D activity here?
Healthcare AI has the broadest coverage: Abridge ($250M), CytoVale ($100M), Aidoc ($110M), Suki ($70M), Proscia ($50M), and Eko Health ($41M) all appear. AI infrastructure and compute — Groq ($640M), Lightmatter ($400M), Supabase ($200M), Coralogix ($142M), and WEKA ($135M) — collectively represent some of the dataset's largest checks.
Which non-US countries appear in the data?
Israel has the largest non-US presence, with AI21 Labs, Aidoc, Scopio Labs, UVeye, Optibus, Pliops, and Cortica all headquartered there. Canada contributes three Toronto-based companies — Cohere ($100M), Blue J Legal ($122M), and BenchSci ($70M). The dataset also includes Synthesia (London, $180M) and NotCo (Santiago, Chile, $70M).
What does the round size distribution look like across this group?
Most disclosed rounds fall between $50M and $200M. The lower end includes OpenSpace ($9M), temi ($10M), Scopio Labs ($10M), and Biofourmis ($20M), while Anysphere ($2.3B) and Groq ($640M) are clear outliers at the top. Two entries — Kasisto and NeuronBasic — have undisclosed amounts.
How much of the activity shown is from 2025?
Nineteen of the 50 entries closed between January and November 2025, including several large rounds: Pathos ($365M), AI21 Labs ($300M), Anysphere ($2.3B), Kalshi ($300M), and Supabase ($200M). The earliest entry in the dataset is TIFIN's $109M round from May 2022, giving the full set a span of roughly three and a half years.
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