Series E Funded Artificial Intelligence Startups
The 32 companies shown span Series E rounds closed between January 2021 and November 2025.
The 32 companies shown span Series E rounds closed between January 2021 and November 2025. The two largest rounds belong to Lambda ($1.5B, San Francisco, November 2025) and Groq ($750M, Mountain View, September 2025) — both AI infrastructure plays. More than half the companies are California-based, with San Francisco, Mountain View, and Palo Alto as the primary clusters; New York is the second most active location, home to EliseAI, Socure, Dataiku, Augury, and others.
Sub-sector coverage is wide: AI compute and developer infrastructure (Lambda, Groq, WEKA, Supabase) sits alongside healthcare AI (Abridge, Komodo Health), legal tech (EvenUp), fraud and identity (Feedzai, Sift, Socure), and defense (Shield AI, SandboxAQ). A dense cluster of nine rounds closed between August and December 2021 — anchored by Socure's $450M and Dataiku's $400M — marks the highest-activity period visible in this dataset, before a notable thinning through 2022 and 2023.
Most recent rounds
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Frequently asked
What are the largest disclosed Series E rounds in this dataset?
Lambda leads at $1.5B (November 2025, San Francisco), followed by Groq at $750M (September 2025, Mountain View) and Socure at $450M (November 2021, New York). Dataiku and Uniphore both raised $400M rounds in August 2021 and February 2022 respectively. Clari's round from October 2021 is listed as undisclosed.
Where are most of these Series E AI companies headquartered?
California accounts for 18 of the 32 companies shown, concentrated in San Francisco, Mountain View, and Palo Alto. New York is the next most common base, with eight companies including Socure, Dataiku, EliseAI, Augury, Hyperscience, Smartling, Verbit, and OpenWeb.
Which AI sub-sectors are attracting Series E capital in this group?
The dataset spans AI infrastructure and compute (Lambda, Groq, WEKA), developer tooling (Supabase), healthcare AI (Abridge, Komodo Health), legal tech (EvenUp), fraud and identity (Feedzai, Sift, Socure), real estate (EliseAI), and defense and national security (Shield AI, SandboxAQ). Horizontal data and analytics platforms — Dataiku, H2O.ai, Pyramid Analytics — are also represented.
How wide is the range of round sizes at Series E for AI companies here?
Among disclosed amounts, rounds range from Ghost Autonomy's $5M (November 2023) to Lambda's $1.5B (November 2025) — a 300x spread. Most disclosed rounds fall between $75M and $450M; Clari's round from October 2021 is the only undisclosed amount in the set.
Are any of these Series E AI companies headquartered outside the United States?
Three companies in the dataset are non-US: Tractable (London, UK, $65M, July 2023), Pyramid Analytics (Amsterdam, Netherlands, $120M, May 2022), and PatSnap (Singapore, $300M, March 2021).
When was Series E activity most concentrated in this dataset?
Nine of the 32 rounds closed between August and December 2021, including Socure ($450M), Dataiku ($400M), Augury ($180M), Smartling ($160M), and Verbit ($150M). Activity contracted to five rounds across all of 2022 and two in 2023, before eight rounds closed in 2025 alone — led by Lambda ($1.5B) and Groq ($750M).
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