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S

SBXi

GeneralistCambridge, United StatesActiveWebsiteLinkedIn
Stage FocusPre-Seed, Seed
GeographyUS
TypeUniversity VC
Last Activity2026
Industry Focus
Industries
AISpacePhotonicsSynthetic BiologyRoboticsAdvanced MaterialsMedtechDefenseBiotechEnergy Tech
Investor TypeUniversity Fund
ExposureSome DeepTech Investments
Bio

SBXi is a Cambridge, Massachusetts-based venture fund exclusively backing MIT-affiliated founders, jointly sponsored by eight firms and staffed day-to-day by Director of Operations Robert Harrington. It writes $10K-$100K checks on SAFEs, and $100K-$1M when a company already has a qualifying term sheet from a lead investor, across any sector.

Its portfolio spans dozens of MIT-founder companies, fr...

Notable Investments
L
Lightmatter
C
Cambridge Terahertz
B
Basalt Technologies
1
1849 Bio
D
Drosera Biotechnologies
A
Aeroshield Materials
C
CRABI Robotics
D
DetoXyFi
E
Eigen Therapeutics
A
Aurora Medical Technologies
A
Avoca
A
Aslan

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