MassVentures
MassVentures is a quasi-public venture capital firm based in Boston, Massachusetts, established in 1978. It was created to address the capital gap for startup companies and stimulate the growth of early-stage technology firms in the state. Operating as an "evergreen fund," MassVentures reinvests profits from successful investments into new ventures, focusing on economic development and job creation. The firm provides a range of financial and operational support services tailored for early-stage, high-growth startups, particularly in deep tech sectors such as biotech, robotics, and clean energ
Investing activity
MassVentures appears in 1 AI deal tracked by the Lounge deals desk, and led 1 of them. The rounds are mostly Seed, with a median round size of $5M. The most recent is Subconscious (Seed, $5.1M, Aug 2026).
MassVentures most often invests alongside E14 Fund, Underscore VC and Foothill Ventures, and the companies it backs on Lounge are mostly in AI.
Deals
Frequently asked questions about MassVentures
What AI companies has MassVentures invested in?
MassVentures's AI investments include Subconscious. The 1 round on Lounge are listed on this page with amounts, dates and co-investors.
Where is MassVentures based?
MassVentures is based in Waltham, Massachusetts, United States.
What stage does MassVentures invest at?
In the rounds tracked on Lounge, MassVentures has invested at Seed, with a median round of $5M. MassVentures led 1 of those rounds.
Who does MassVentures co-invest with?
MassVentures's most frequent co-investors on Lounge are E14 Fund (1 deal), Underscore VC (1 deal) and Foothill Ventures (1 deal).
How can founders reach MassVentures?
Founders on Lounge can see MassVentures's contact details in AI Investor Contacts (paid plans), check for a warm introduction through members who worked with the firm under Warm Paths, and add MassVentures to their Investor Pipeline to track the conversation.