Funded Health Care Startups in Boston
Disclosed round sizes in this Boston Health Care set are clustered in the tens of millions, except for a single outlier: Reify Health’s $220M Series D on 2…
Disclosed round sizes in this Boston Health Care set are clustered in the tens of millions, except for a single outlier: Reify Health’s $220M Series D on 2022-04-21 dwarfs the rest of the disclosed amounts, with the next-largest disclosed rounds at $110M (Medically Home, 2022-01-10) and $100M (not present; the next nearby high values include $84M for Cricket Health on 2021-08-05 and $110M is the next-largest). On the low end, the smallest disclosed amount is $2K from ARMR Systems (2023-08-23) and the next-lowest disclosed amounts also sit at the micro-to-low million range (e.g., $10K for Culture Care Collective on 2022-04-06; $50K for Central Boston Elder Services on 2022-11-03).
Date-wise, the 50 rows span from 2021-08-04 (Humanity, Seed) to 2025-11-20 (QSimulate, undisclosed). A dense concentration appears in 2024: multiple rounds land between 2024-05 and 2024-10 (e.g., Form Health $38M on 2024-06-26, AcuityMD $45M on 2024-06-04, Centaur Labs $16M on 2024-10-08, and Syntis Bio/PhaseV/Bluebird Kids Health in mid-2025). Stage naming is mixed: besides clearly labeled Seeds, Series A/B/C/D, there are rows marked “Series Unknown” and multiple “undisclosed” amounts (at least 7 entries include “undisclosed” or comparable non-disclosed amounts).
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Frequently asked
Which disclosed round is an outlier, and how does it compare to other disclosed amounts in this Boston Health Care list?
Reify Health’s $220M Series D on 2022-04-21 is the largest disclosed amount by a wide margin; the next-largest disclosed amounts are $110M (Medically Home, 2022-01-10) and $100M is not present in the table’s disclosed values.
Do the rounds cluster in time, or are they evenly distributed across 2021–2025?
They cluster heavily in 2024, with back-to-back mid-year and fall closings such as Form Health $38M (2024-06-26), AcuityMD $45M (2024-06-04), and Centaur Labs $16M (2024-10-08). The window spans from 2021-08-04 (Humanity) to 2025-11-20 (QSimulate), with a steady stream rather than a single spike.
How concentrated are the disclosed deal sizes—do most rounds fall in the tens of millions?
Yes: multiple disclosed rounds sit in the tens of millions (e.g., PhaseV $50M on 2025-05-13, Syntis Bio $33M on 2025-07-01, Assured Allies $43M on 2023-03-07, and 1upHealth $40M on 2023-04-12). The distribution’s spread is driven by the high outlier (Reify Health $220M) rather than by frequent very large rounds.
Is there a stage mix pattern, and how much is marked “Series Unknown” or not disclosed?
Stage labels are split between named rounds (Seed, Series A/B/C/D) and non-standard labeling, including “Series Unknown” rows such as UBERDOC (undisclosed; 2024-07-09) and RxCap ($20M; 2024-05-06 with “Series Unknown”). Several entries also show “undisclosed” amounts, such as QSimulate (2025-11-20), UBERDOC (2024-07-09), Boston Community Pediatrics (2023-04-03), and others.
Are any rounds clustered around the same magnitude floor or the same low-end disclosure level?
There’s a recurring low-end band around very small disclosed amounts and even micro-denominations: ARMR Systems is $10K (2023-08-23), Culture Care Collective is $10K (2022-04-06), and Central Boston Elder Services is $50K (2022-11-03). This low band appears alongside much larger tens-of-millions financings (e.g., BetterVet $40M on 2022-11-16).
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