Funded Artificial Intelligence Startups in San Diego
San Diego–based AI funding in this set is highly top-heavy: Seismic’s $170M round (2021-08-16) is the only disclosed amount above $50M, with the next-large…
San Diego–based AI funding in this set is highly top-heavy: Seismic’s $170M round (2021-08-16) is the only disclosed amount above $50M, with the next-largest disclosed rounds clustered below that level at $100M (Iambic Therapeutics, 2025-11-11) and $65M (Netradyne, 2022-09-07), followed by $60M (Shield AI, 2022-12-13). The most recent window also shows a burst of smaller disclosed rounds: three disclosed rounds of $20M (Aether AI, 2026-06-17), $2M (Footage, 2026-04-15), and $1M (Looq AI, 2023-11-13 appears earlier; within the latest months specifically, Seismic is older) sit alongside multiple undisclosed raises in 2026 (Biobase on 2026-07-08 is undisclosed; Chateauz on 2026-04-28 is undisclosed). Stage coverage skews toward poorly specified deal terms, with 5 entries marked “Series Unknown” (e.g., Personal AI on 2025-12-18 at $14M; Brain Corp on 2024-02-22 at $32M) and additional “Series Unknown” variants (“Venture - Series Unknown”) including Iambic Therapeutics (2025-11-11, $100M) and Imaige (2022-09-22, $1M). Temporally, the disclosed rounds span 2021-01-13 to 2026-07-08, while undisclosed amounts account for 7 of 42 rows and are concentrated among the latest entries.
Most recent rounds
42 shownRelated listings
Frequently asked
Which disclosed round is the outlier by size, and what sits just below it in this San Diego AI list?
Seismic’s $170M (2021-08-16) is the only disclosed amount above $50M. The next-largest disclosed amounts are $100M (Iambic Therapeutics, 2025-11-11) and $65M (Netradyne, 2022-09-07), placing the remainder of disclosed rounds well below the $50M threshold.
How much of the list is concentrated around the newest dates, and what pattern shows up between disclosed and undisclosed rounds?
The newest dated entry is Biobase on 2026-07-08 (undisclosed), followed immediately by disclosed funding in June 2026 including Aether AI at $20M (2026-06-17) and Harbor at $500K (2026-06-16). Several adjacent 2026 entries are undisclosed as well (e.g., Chateauz on 2026-04-28), suggesting a pattern where the latest cluster includes both disclosed and undisclosed raises.
Are deal terms overrepresented as “Series Unknown” (including “Venture - Series Unknown”) versus more specific stages?
In this set, “Series Unknown” appears repeatedly, including Personal AI on 2025-12-18 ($14M) and Brain Corp on 2024-02-22 ($32M) as “Series Unknown.” “Venture - Series Unknown” is also present (e.g., Iambic Therapeutics at $100M on 2025-11-11; Imaige at $1M on 2022-09-22), reinforcing that a large share of funding events in this view don’t map cleanly to a named stage.
Which stage labels show up as anchor points for disclosed dollars (e.g., Seed, Series A, and higher series)?
Seed appears across multiple disclosed entries with smaller ticket sizes such as Swastham.ai at $280K (2026-06-11), Acurion at $4M (2026-04-02), and Self Inspection at $3M (2025-02-07). Higher-series disclosures are represented at the top end: Shield AI is Series E at $60M (2022-12-13) and Seismic is Series G at $170M (2021-08-16), indicating that the biggest rounds come from late-stage labels.
What temporal edges exist, and which single old-to-new timeline points are most useful for investors tracking progression?
The oldest dated row is Human AI Labs (Hu.man.ai) on 2021-01-13 (Seed, $3M), while the newest is Biobase on 2026-07-08 (Pre-Seed, undisclosed). Along the way, the highest disclosed points act as milestones: Seismic at $170M in 2021-08-16, then Shield AI at $60M in 2022-12-13, and later Iambic Therapeutics at $100M in 2025-11-11 and Aether AI at $20M in 2026-06-17.
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