Funded Startups in Massachusetts
The largest disclosed round is $600M by Kailera Therapeutics (Waltham, MA) on 2025-10-19, which dwarfs all other disclosed amounts in the list: the next-hi…
The largest disclosed round is $600M by Kailera Therapeutics (Waltham, MA) on 2025-10-19, which dwarfs all other disclosed amounts in the list: the next-highest disclosed figures include $350M (not shown) none; the next-largest visible disclosed amounts are $250M (Suno, 2025-11-22) and $213M (Odyssey Therapeutics, 2025-09-09), with most other disclosed rounds clustered far lower (for example $115M Lila Sciences on 2025-10-18 and $86M Beacon Biosignals on 2025-11-15). At the low end, the smallest disclosed amount is $80K for BlueShift (Cambridge, MA) on 2025-08-15, alongside another very small disclosed round the same day ($350K Active Surfaces on 2025-08-15), making the distribution unusually wide.
The 50 shown rounds span 2025-08-13 to 2025-11-28 and concentrate heavily in Boston/Cambridge-area companies: examples include AI Proteins ($42M, 2025-11-22), Suno ($250M, 2025-11-22), Beacon Biosignals ($86M, 2025-11-15), and multiple Cambridge deals such as Lila Sciences ($115M, 2025-10-18) and Odyssey Therapeutics ($213M, 2025-09-09). Stage and disclosure are also mixed: more than half of the entries either use “Series Unknown” or show “undisclosed” amounts (RaySecur on 2025-11-23 is “undisclosed,” and several others are “Series Unknown” even when amounts are present), while early-stage labels like Seed and Series A repeatedly appear throughout the same late-2025 window.
Most recent rounds
50 shownRelated listings
Frequently asked
What’s the standout largest disclosed round in this Massachusetts set, and how far above the rest is it?
Kailera Therapeutics’ $600M round on 2025-10-19 (Waltham) is the clear disclosed outlier; the next-largest disclosed amounts are $250M for Suno (2025-11-22) and $213M for Odyssey Therapeutics (2025-09-09), with most other disclosed rounds (e.g., $115M Lila Sciences on 2025-10-18) well below that range.
Are there clear city-level clusters among the most recent deals?
Yes. Multiple of the largest rounds are Boston/Cambridge-based: Suno ($250M, Cambridge, 2025-11-22), AI Proteins ($42M, Boston, 2025-11-22), Beacon Biosignals ($86M, Boston, 2025-11-15), and Odyssey Therapeutics ($213M, Cambridge, 2025-09-09) all sit in the same broader metro geography, while Massachusetts deals also appear across nearby cities like Waltham, Westwood, and Woburn.
Do the disclosed rounds concentrate in a narrow date window near the top of the list?
They do. The most recent dates shown run from 2025-11-28 (Clean Crop Technologies, $8M) down through multiple late-November entries (e.g., RaySecur on 2025-11-23 and Suno/AI Proteins on 2025-11-22), indicating clustering in the final weeks of 2025 rather than evenly across earlier periods.
How often does disclosure stay unclear compared with explicitly stated amounts or series labels?
Uncertainty shows up frequently: RaySecur (2025-11-23) and Bambusa Therapeutics (2025-11-20) are listed with “undisclosed” amounts, and Dewpoint Therapeutics (2025-09-13) is also “undisclosed.” In parallel, several rounds are categorized as “Venture - Series Unknown” or “Series Unknown” even when an amount is provided (e.g., Nanoramic Laboratories, $54M on 2025-11-18).
Which entries represent the smallest disclosed rounds, and are they isolated or grouped?
The smallest disclosed amount is BlueShift at $80K on 2025-08-15 (Cambridge). That same day also includes Active Surfaces at $350K (Salem), suggesting the low end is not just a single isolated entry within the August 2025 tail of the list (which otherwise contains much larger disclosed rounds like Leal Therapeutics’ $30M on 2025-08-27).
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