Funded Startups in Ann Arbor
Ann Arbor’s most recent funding activity in this dataset (50 rows, latest dated 2026-05-29 at Culturewell for $750K) is strongly shaped by a high-value bio…
Ann Arbor’s most recent funding activity in this dataset (50 rows, latest dated 2026-05-29 at Culturewell for $750K) is strongly shaped by a high-value biotech/health cluster and a long tail of smaller checks. The single largest disclosed round is ONL Therapeutics at $65M (Series D, 2024-09-13), which stands out from the rest: only a few disclosed rounds exceed $40M (Optilogic at $40M on 2025-04-08; Amplitude Vascular Systems at $36M on 2025-01-28; Voxel51 at $30M on 2024-05-16).
The timing also concentrates: between 2025-10-01 and 2026-05-29, multiple rounds land in biotech and AI/professional-services-adjacent categories, while many entries remain undisclosed or “Series Unknown” (Series Unknown appears in 30 of 50 rows; “undisclosed” amounts appear in 7 of 50). Sector-wise, biotech is the most frequent theme (appearing in 14 of 50 rows), with additional density in AI (5) and Energy (3).
Most recent rounds
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Frequently asked
What outlier rounds stand out in Ann Arbor, and how do they compare to the rest of the disclosed amounts?
The largest disclosed round is ONL Therapeutics at $65M (Series D, 2024-09-13). It dwarfs the next-largest disclosed amounts, with Optilogic at $40M (Series B, 2025-04-08) and Amplitude Vascular Systems at $36M (Series B, 2025-01-28) in the next tier above most other disclosed rounds (e.g., $30M for Voxel51 on 2024-05-16).
Are there dense time windows where multiple Ann Arbor rounds cluster together?
Yes. The most recent stretch from 2026-02-24 (Circadian Risk, $6M) to 2026-05-29 (Culturewell, $750K) includes multiple funded entries on adjacent dates (for example, 2026-04-08 has two rounds: Adrenaline Interactive for $1M and Heat2Power for $15M). A second notable cluster appears in 2024-05-16, where two different companies posted disclosed rounds (SkySpecs at $20M and Voxel51 at $30M).
How often are round sizes or stages not disclosed, and what does that imply for diligence?
Disclosed amounts are frequently missing: 7 of 50 rows list “undisclosed” amounts, including Esperion (undisclosed, 2026-05-01) and Enpower Greentech (undisclosed, 2025-12-01). Stage is also frequently unspecified: “Series Unknown” appears in 30 of 50 rows (for example, Culturewell on 2026-05-29 and Pursuit is one of the smaller set where the stage is explicitly shown as Series A on 2026-04-29).
Which sectors are over-represented in this Ann Arbor list compared with others?
Biotechnology is the clearest concentration at 14 of 50 rows (e.g., Culturewell on 2026-05-29 for $750K and ONL Therapeutics on 2024-09-13 for $65M). AI shows up in 5 of 50 rows (e.g., Circadian Risk is labeled Apps rather than AI, but MemryX is AI with an undisclosed amount on 2025-05-05; Voxel51 is AI with $30M on 2024-05-16), while Energy appears in 3 of 50 rows (Heat2Power $15M on 2026-04-08; Enpower Greentech undisclosed on 2025-12-01; plus another energy entry at 2026-04-08).
Are there unusually small disclosed rounds that could indicate grants, early-stage activity, or low-ticket rounds within the dataset?
The smallest disclosed amount in the table is $10K for Warmilu (2023-08-23, “Series Unknown”). Other low disclosed checks remain relatively close to that floor (e.g., $20K for ModernVivo on 2023-08-10), but the dataset also contains large rounds like ONL Therapeutics’ $65M, making the low-ticket entries an outlier group rather than the modal pattern.
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