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SG

Seraph Group

GeneralistFoster City, United StatesActiveWebsiteLinkedIn
Stage FocusPre-Seed, Seed, Series A
GeographyGlobal
TypeAngel Network
Last Activity2026
Industry Focus
Industries
BiotechAerospaceAgritechHardwareMedtechRoboticsPhotonicsSemiconductorsBlockchainAdvanced Materials
Technical BenchLimited
Investor TypeGeneralist
ExposureSome DeepTech Investments
Bio

Seraph Group is an invitation-only angel investment network founded in 2004 in Foster City, California, by career venture capitalist and founder Tuff Yen to bridge the funding gap between pre-seed and Series A. It operates a Structured Angel Fund and a Growth Equity Fund for follow-on investment, backed by a network of 390+ accredited investors, and has deployed over $195 million across 150+ compa...

Notable Investments
B
Boom
D
Databricks
E
Eko Health
C
Combinati
C
CoLabs
A
AI Optics
D
Dragon Vascular
4
4AG Robotics
D
Digbi Health
A
ACTNano
C
Ciphertrace
D
De-Ice

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