Funded Artificial Intelligence Startups in Santa Clara
Santa Clara's AI funding activity, across these 41 rounds dating from March 2020 through November 2025, is disproportionately shaped by AI compute hardware…
Santa Clara's AI funding activity, across these 41 rounds dating from March 2020 through November 2025, is disproportionately shaped by AI compute hardware and semiconductor infrastructure. The three largest disclosed rounds — d-Matrix's $275M Series C (November 2025), Celestial AI's $250M Series C (March 2025), and Tachyum's $220M Series C (October 2025) — all target chip-level or interconnect problems, a pattern reinforced by Black Sesame Technologies ($159M, February 2025), EnCharge AI ($100M Series B, February 2025), and Astera Labs ($150M Series D, November 2022).
2025 stands out for deal density: at least twelve rounds closed between January and November, spanning from MEXT.ai's $2M venture round and Jobright's $3M Seed to d-Matrix's $275M Series C. Earlier vintages include enterprise software names such as Ushur ($50M Series C, February 2023), SupportLogic ($50M Series B, October 2021), and LeanTaaS ($130M, December 2020), indicating the segment extends well beyond pure hardware into workflow automation and analytics.
Most recent rounds
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Frequently asked
What are the largest recent rounds among Santa Clara AI startups in this dataset?
The three largest disclosed rounds are d-Matrix's $275M Series C (November 2025), Celestial AI's $250M Series C (March 2025), and Tachyum's $220M Series C (October 2025). Black Sesame Technologies' $159M round (February 2025) and Astera Labs' $150M Series D (November 2022) round out the top five by disclosed size.
Which funding stage accounts for the largest raises here?
Series C dominates the top of the range: d-Matrix, Tachyum, Celestial AI, Ushur, Ordr, and CLARA Analytics all raised Series C rounds, with disclosed amounts spanning from $24M (CLARA Analytics, September 2023) to $275M (d-Matrix, November 2025). Series A also produced outsized results — Nexthop AI closed $110M in March 2025.
What types of AI companies are pulling the biggest rounds in Santa Clara?
AI compute hardware and semiconductor infrastructure companies account for the largest raises: d-Matrix, Tachyum, Celestial AI, Black Sesame Technologies, EnCharge AI, Analog Inference, and Astera Labs all address chip-level or interconnect problems. Enterprise software plays like Ushur ($50M Series C), SupportLogic ($50M Series B), and Selector ($33M Series B) occupy the mid-range.
How active was 2025 fundraising in this segment?
At least twelve rounds closed in 2025 between January (Bluwhale, $25M Series A) and November (d-Matrix, $275M Series C). The cohort spans a wide range, from Jobright's $3M Seed (June 2025) and MEXT.ai's $2M venture round (October 2025) up through multiple nine-figure infrastructure raises.
Are there any unusually large early-stage rounds in this group?
Upscale AI closed a $100M Seed round in September 2025, which stands out given the typical Seed range visible elsewhere in the dataset — most Seed rounds here are $3M or below. Nexthop AI's $110M Series A (March 2025) is similarly outsized relative to other Series A deals in the same set.
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