What does MassChallenge invest in?
MassChallenge invests most often at Venture and Seed (67% of the rounds on record), in sectors such as Sustainability, Sustainable and Social Impact.

United States · Investor
Last cheque observed Sep 2026; 984 cheques on record.
Deploying nowAccelerator
77 cheques in the last 12 months
Mostly Venture and Seed: 67% of its rounds
Sole investor in 259 rounds, median $373K
3 exits from the portfolio
Every round we can evidence, newest first984 appearances
54 rounds
An announcement gives the size of the round, not the size of this investor's cheque: the only rounds that imply a cheque are those where they were the sole named investor.
We hold 2 people at this firm from the lists this database was built from: a weaker source than the filings, since a list does not say when a title ended. Login to see them.
Companies it backed that were later bought or listed3 in all
An exit counts when it came after the firm's first round in the company. From historical deal records.
The investors most often in the same rounds as MassChallenge. A count of rooms they were both in, not a relationship either has claimed.
The latest companies MassChallenge put money into.
1 episode naming MassChallenge in the title, and 1 more that mention it.

E1054: The Power of Accelerators E3 Siobhan Dullea, CEO of MassChallenge on running a non-profit accelerator, accepting hundreds of companies per year, what makes a great application, why East Coast investors are more conservative & more!
MentionsMassChallenge

Q&A: Cofounder Compatibility, Role Negotiations & Minimum Viable Relationship - E82
MassChallenge invests most often at Venture and Seed (67% of the rounds on record), in sectors such as Sustainability, Sustainable and Social Impact.
984 investments on record, 77 of them in the last 12 months. The most recent was in Sept 2026.
Its most recent investments on record: INIA Biosciences (Seed, Sept 2026), Greencovery (Seed, Sept 2026) and Oklo (Undisclosed round, Sept 2026).
The median round it joins is $1.8M.
Rarely, if at all: none of its 984 investments on record names it as the lead.
Most of the companies it backs are in the United States (53%), Switzerland (23%) and the United Kingdom (8%).
Yes: it is actively investing, with 77 investments in the last 12 months.
Most often National Science Foundation (104 rounds together), Techstars (71 rounds together) and Venture Kick (43 rounds together).
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Built from the rounds we watched, its filings and its own website, refreshed every night. How we count · Report a correction · Is this your firm? Claim it