Funded Artificial Intelligence Startups in Menlo Park
Among the 28 AI companies listed here, Menlo Park shows a broad distribution of stage and deal size, from Lincode's $100K venture round in January 2022 to…
Among the 28 AI companies listed here, Menlo Park shows a broad distribution of stage and deal size, from Lincode's $100K venture round in January 2022 to Together AI's $305M Series B in February 2025. Thirteen of the 28 rounds closed in 2025, with July alone accounting for five—Collate, AirMDR, Subtle Medical, PAX Markets, and Synfini all announcing within an eight-day window.
Application focus spans several distinct verticals. Medical and life-science AI is well represented—Develop Health raised a $14M Series A in August 2025, RapidAI closed a $75M Series C in July 2023, and Deepcell, Subtle Medical, and Aether Bio each appear in 2025 data. Security-oriented AI includes Hakimo ($11M Series A, March 2025), Ambient.ai ($52M, January 2022), and AirMDR ($11M seed, July 2025). Developer tooling and analytics round out the sector mix through Bito, Quantifind, and Promethium.
Most recent rounds
28 shownRelated listings
Frequently asked
What are the largest disclosed rounds among these companies?
Together AI leads with a $305M Series B closed February 20, 2025. The next largest are RapidAI at $75M Series C (July 2023) and Helm.ai at $55M Series C (August 2023), followed by Ambient.ai at $52M in January 2022.
Which funding stage is most common in this group?
Seed rounds appear most often, with seven companies—including AirMDR ($11M), Bito ($6M), ViralMoment ($3M), and SVEXA ($3M)—raising at that stage. An additional nine entries carry "Series Unknown" or "Venture - Series Unknown" labels where the precise stage was not publicly disclosed.
How active was 2025 compared to prior years in this dataset?
Thirteen of the 28 rounds closed in 2025, making it the most active year shown. Activity was particularly dense in July 2025, when five rounds—Collate, AirMDR, Subtle Medical, PAX Markets, and Synfini—all closed within an eight-day window.
What application verticals appear most frequently?
Medical and life-science AI accounts for the largest cluster, including Develop Health, Subtle Medical, RapidAI, Deepcell, and Aether Bio. Security and physical safety AI spans Hakimo, Ambient.ai, and AirMDR. Analytics, developer tooling, and data infrastructure appear through Quantifind, Bito, and Promethium.
How many rounds in this dataset have undisclosed amounts?
Five of the 28 rounds list undisclosed amounts: ALICE Technologies, Subtle Medical, PAX Markets, Deepcell, and Curie. Among the 23 with disclosed figures, deal sizes range from $100K (Lincode, January 2022) to Together AI's $305M Series B.
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