M33 Growth

VC firm · Boston, MA

SEC-registered adviser

Venture firm based in Boston, MA. Most recent fund on file: M33 Growth III L.P. ($340M offering), filed Jan 2023. Partners sit on the boards of 1 startup that raised recently.

“M33 Growth is a venture and growth stage investment firm that seeks to partner with founders and CEOs to accelerate growth and break through as industry leaders.” (from the firm’s website)

Stages: Growth
Typical check (est.): $3.4M–$10.2M
Latest fund: $4M · Mar 2024
Last verified activity: Apr 2025

Focus

Media, Gaming & CreatorHealthcareBiotech & Pharma

Recent portfolio activity

Oncology Institute
Board seat · CA
Apr 2025

Funds and vehicles on SEC file

M33 Growth III Employee Co-Investment LLC
Fund · $4M offering
Mar 2024
M33 Growth III L.P.
Fund · $340M offering
Jan 2023

Sources

SEC Form D: M33 Growth III Employee Co-Investment LLCMar 7, 2024
SEC Form D: M33 Growth III L.P.Jan 3, 2023
SEC adviser record: M33 Growth LLCMar 31, 2026
Firm websiteOct 12, 2026

Profile last verified Oct 12, 2026. Is this you? Correct or remove this profile.