Series B Funded Artificial Intelligence Startups
Series B rounds in this AI-focused list cluster tightly in late June 2026 and mid-May 2026, with four entries closing on consecutive days from 2026-06-23 t…
Series B rounds in this AI-focused list cluster tightly in late June 2026 and mid-May 2026, with four entries closing on consecutive days from 2026-06-23 to 2026-06-26 (including Attention on 2026-06-23 at $30M, xCures on 2026-06-24 at $46M, and Patronus AI on 2026-06-25 at $50M) and multiple deals around 2026-05-19–2026-05-28 (for example Armada at $230M on 2026-05-19 and Corgi Insurance at $106M on 2026-05-28). The size distribution is highly skewed: Isomorphic Labs raised $2.1B on 2026-05-12, dwarfing the next-largest disclosed rounds such as Generalist AI at $400M (2026-06-04) and TensorWave at $350M (2026-06-10). On the smaller end, GreenCore Solutions Corp. is the lowest disclosed amount at $6M (2026-06-01), with Menou following at $3M (2026-06-01). Geographically, the list is heavily US-weighted (for example New York appears repeatedly: Attention 2026-06-23 at $30M, Avoca 2026-04-27 at $125M, and Actively 2026-04-20 at $45M). The 50 shown rows span 2026-04-20 through 2026-06-25 and all are labeled “Series B” with no “undisclosed” amounts in the provided data.
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Frequently asked
What’s the size outlier among these recent Series B AI rounds, and how far ahead is it of the rest?
Isomorphic Labs raised the only disclosed round above $1B: $2.1B on 2026-05-12. The next-largest disclosed figures are much lower, including Generalist AI at $400M (2026-06-04) and TensorWave at $350M (2026-06-10), so the top deal dwarfs the rest of the list.
Do these rounds cluster more by time (specific windows) or by geography (repeated cities)?
Time clustering is visible: late June 2026 includes multiple consecutive closings such as Attention ($30M, 2026-06-23), xCures ($46M, 2026-06-24), and Patronus AI ($50M, 2026-06-25). Geography also repeats at the city level, with New York-based entries appearing across dates (Attention 2026-06-23 $30M, Avoca 2026-04-27 $125M, and Actively 2026-04-20 $45M).
Which entries are in the smallest disclosed range, and is the bottom tightly grouped or spread out?
The smallest disclosed amounts are GreenCore Solutions Corp. at $6M (2026-06-01) and Menou at $3M (2026-06-01), both appearing on the same date. Beyond that floor, amounts move upward into the single-digit to tens of millions range (for example MangoBoost $7M on 2026-04-21 and KEMARO AG $5M on 2026-04-23).
Are there repeated deal sizes suggesting a common funding pattern within Series B, or is it mostly continuous?
There’s a noticeable mid-tier concentration around $40M–$50M, including several $40M rounds such as Pivot ($40M, 2026-05-21), SignalPlus ($40M, 2026-05-20), and Dust ($40M, 2026-05-18). By contrast, the high end is dominated by a few much larger disclosed rounds like Odyssey ($310M on 2026-06-17) and Cowboy Space ($305M on 2026-05-11), creating a long tail above that band.
How concentrated is the list in the most recent dates shown, and what are the temporal edges of the dataset?
The most recent row is Patronus AI on 2026-06-25 at $50M, and several additional rounds land immediately before it (xCures 2026-06-24 $46M; Attention 2026-06-23 $30M). The dataset edges in the provided window at 2026-04-20 (Actively at $45M) and runs through 2026-06-25.
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