Funded Startups in Woburn
Disclosed funding amounts in Woburn are highly concentrated at the top: Phoenix Tailings’ $500M round on 2026-06-16 dwarfs the next-largest disclosed amoun…
Disclosed funding amounts in Woburn are highly concentrated at the top: Phoenix Tailings’ $500M round on 2026-06-16 dwarfs the next-largest disclosed amount (SES at $275M on 2022-02-04), with the rest of the visible stack stepping down through AsymBio ($184M on 2026-08-04), Replimune Group ($140M on 2024-11-25), and several others in the $100M range (Factorial Energy $100M on 2026-06-08; Gradiant $100M on 2021-11-18). The listing also shows a biotech-heavy cluster across a broad time window, spanning 2020-08-13 to 2026-08-04, while most rounds fall into “Series Unknown” labels (19 of 40) and “Biotechnology” remains the most repeated sector (15 of 40). By size disclosure, 7 disclosed rounds are at or above $100M, versus 30 disclosed rounds at or above $1M, indicating many smaller disclosed financings with fewer large ones. On timing, the distribution is front-loaded into recent years (2025 has 11 rounds; 2026 has 6), and multiple entries recur in Woburn, Massachusetts specifically, including Phoenix Tailings (2026-06-16) and AsymBio (2026-08-04).
Most recent rounds
40 shownRelated listings
Frequently asked
Which disclosed round is the clear outlier in Woburn, and how does it compare to the next-largest disclosed amount?
Phoenix Tailings’ $500M round (2026-06-16) is the largest disclosed amount on the page, and it is substantially above the next-largest disclosed amount: SES at $275M (2022-02-04). The next tier includes AsymBio at $184M (2026-08-04) and Replimune Group at $140M (2024-11-25).
How dominant are Biotechnology and “Series Unknown” labels in this city list?
Biotechnology appears 15 times across the 40 rows, ahead of other recurring sectors like Health Care (5) and Manufacturing/Energy (4 each). Stage labeling is also heavily skewed toward “Series Unknown,” which appears 19 of 40 times, including multiple recent biotech entries such as Zumutor Biologics (Series B at $7M, 2026-06-13) alongside several biotechnology rounds marked Series Unknown (e.g., MarvelBiome, 2025-10-22, $40M).
Do most disclosed rounds cluster around a narrow funding band, or are there many low-to-mid disclosed amounts?
There are 7 disclosed rounds at or above $100M, but the disclosed distribution extends widely: 14 disclosed rounds are at or above $50M, and 30 disclosed rounds are at or above $1M. At the low end, the smallest disclosed amount is Imago Rehab’s $250K (2024-07-08), illustrating a long tail beneath the large rounds.
Are there concentration patterns in time, such as more activity in 2025–2026 versus earlier years?
Yes: the most recent years carry the bulk of the entries, with 2025 accounting for 11 rounds and 2026 for 6 rounds, while earlier years are lower (2020 has 2; 2022 has 3; 2021 has 4). Examples in 2026 include AsymBio ($184M on 2026-08-04) and Phoenix Tailings ($500M on 2026-06-16).
Which entries illustrate the biggest sector or stage contrast across the list?
The largest disclosed biotech-related entry is Phoenix Tailings’ $500M, but the list also includes non-biotech sectors at very different sizes—for instance, SES at $275M (2022-02-04) is Consumer Electronics, while Energy includes Factorial Energy at $100M (2026-06-08) and Alsym Energy at $78M (2024-04-03). Stage contrasts are also visible, with Private Equity appearing once (AsymBio at $184M on 2026-08-04) alongside multiple Seed rounds such as Fieldstone Bio ($5M, 2025-05-15) and Feon ($6M, 2024-06-27).
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