Funded Startups in Mill Valley
Across the 15 most recent Mill Valley-funded entries, the largest disclosed round is Basis Theory’s $33M Series B on 2025-10-17; everything else with discl…
Across the 15 most recent Mill Valley-funded entries, the largest disclosed round is Basis Theory’s $33M Series B on 2025-10-17; everything else with disclosed amounts stays far below that level, including Redwood Trust’s $40M disclosed amount (2024-10-09) and the next-highest disclosed amounts at $30M (Ambient Photonics, 2023-09-05) and $20M (Vacatia, 2021-11-10). Several amounts cluster tightly in the low single-digit millions and below: Sonar’s $2M (2025-02-24), OK Capsule’s $8M (2023-01-01), and Achieve Life Science’s $3M grant (2022-06-01) sit well under the $20M-to-$33M range.
The list is also stage- and disclosure-weighted rather than evenly distributed. “Series Unknown” appears in 8 of 15 rows, and “undisclosed” appears in 2 of 15 rows, while health care, biotechnology, and commerce show up repeatedly among the sector labels (biotechnology and health care each appear 3+ times). Temporally, the span runs from 2020-04-15 (Yes Health) through 2025-10-17 (Basis Theory), with the newest quarter dominated by 2025 dates (Earthshot Labs 2025-05-02; Sonar 2025-02-24; Taharka 2025-02-19).
Most recent rounds
15 shownRelated listings
Frequently asked
What’s the largest disclosed round in this Mill Valley set, and how far above the rest is it?
The largest disclosed amount is Redwood Trust’s $40M on 2024-10-09. The next-largest disclosed amounts are $33M (Basis Theory, 2025-10-17), then $30M (Ambient Photonics, 2023-09-05), with most other disclosed rounds clustered at $20M and below.
How much of this list is concentrated in the newest dates (last ~90 days of the shown window)?
Within the most recent window ending at 2025-10-17, the 2025 rounds appear clustered in early-to-mid 2025: Sonar ($2M, 2025-02-24), Taharka ($90K, 2025-02-19), and Earthshot Labs (undisclosed, 2025-05-02), plus Basis Theory ($33M, 2025-10-17). Outside 2025, the next visible concentration is in 2023, with multiple entries dated March 2023 and September 2023.
Is sector labeling concentrated (for example, biotechnology or health care appearing repeatedly), or is it broadly distributed?
Sector labels are not uniform. Biotechnology appears at least 3 times (The Earth Genome, OK Capsule, Kerogen Systems, Jyzen Labs, Achieve Life Science each mapped to biotech/adjacent labels in the table), and health care also recurs (Sonar in health care on 2025-02-24; Yes Health in 2020-04-15; plus one additional health care-labeled entry). Consumer/commercial themes also show multiple instances via “Commerce and Shopping” (Taharka 2025-02-19; Vacatia 2021-11-10) and related consumer categories.
What fraction of entries have “Series Unknown” or “undisclosed” amounts, and what does that imply for comparing round sizes?
“Series Unknown” appears in 8 of 15 rows, and “undisclosed” appears in 2 of 15 rows (Earthshot Labs on 2025-05-02 and True Botanicals on 2023-03-22). That means disclosed-round comparisons are possible for only the rows with numeric amounts, and stage/size analyses can’t assume consistent reporting across the full set.
Are there outliers on the low end or tied to unusual stage labels in this set?
Yes: the smallest disclosed amount is Kerogen Systems’ $30K Seed round on 2022-10-24, which is far below the next-smallest disclosed amounts like $90K for Taharka (2025-02-19) and $250K for The Earth Genome (2023-12-20). On the stage side, entries with “Grant” (Achieve Life Science, $3M on 2022-06-01) and a blank stage label (Yes Health on 2020-04-15 with $6M) add heterogeneity beyond standard named rounds.
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