VC Explorer

Explore funding trends in the RAI space.


2025

52 rounds raised

$1,542m raised

2026

8 rounds raised -84.6%

$558m raised -63.8%


Investment Feed

Last updated: October 22, 2026 04:43:55

Harmonic Security

Raised $50.0M in Series B round

2026-10-14

HiddenLayer

Raised $100.0M in Series B round
Delta-v Capital, Ten Eleven Ventures, Morgan Stanley, M12, Booz Allen Ventures

2026-09-02

Patronus AI

Raised $50.0M in Series B round
Greenfield Partners, Notable Capital, Lightspeed Venture Partners, Datadog, Samsung, Factorial Capital, Gokul Rajaram

June 2026

Gray Swan AI

Raised $40.0M in Series A round
Wing Venture Capital, Madrona, Obvious Ventures, Snowflake Ventures, Hudson River Trading, Samsung Next, Magarac Venture Partners

May 2026

Braintrust

Raised $80.0M in Series B round
ICONIQ Capital, Andreessen Horowitz, Greylock

February 2026

Goodfire

Raised $150.0M in Series B round
B Capital, Juniper Ventures, Menlo Ventures, Lightspeed Venture Partners, South Park Commons, Wing Venture Capital, DFJ Growth, Salesforce Ventures, Eric Schmidt

February 2026

RAI-Leveraged Firms

Firm Name # RAI Investments Investments
Y Combinator 7 Unbound Security, Athina AI, Humanly, Pave, Ambient AI, Armilla AI, Openlayer
Lightspeed Venture Partners 6 Virtuous AI, Snorkel AI, Goodfire, Fiddler AI, Patronus AI, Virtue AI
Factory 4 Guardrails AI, Virtuous AI, Guardrail Technologies, Virtue AI
Insight Partners 4 HoneyHive, OneTrust, Fiddler AI, Laminar
Samsung Next 4 Fiddler AI, Bria, Gray Swan AI, Bast AI
Andreessen Horowitz 3 Hippocratic AI, Pave, Braintrust
Bessemer Venture Partners 3 AIMon Labs, Giskard AI, Pave
Bloomberg Beta 3 Fiddler AI, Guardrail Technologies, Guardrails AI
Gaingels 3 ValidMind, Rhino Health, TomtA AI
Index Ventures 3 Arthur AI, Pave, BrightHire
Mozilla Ventures 3 Fiddler AI, Credo AI, Trail ML
Plug and Play 3 Datatron, Monitaur, Betterdata
500 Startups 2 Datatron, Impress AI
AI Fund 2 ValidMind, Credo AI
Alpha Square Group 2 Unbound Security, Fiddler AI
Alumni Ventures 2 Trustible, Humanly
Amarjit Gill 2 Virtuous AI, Virtue AI
Calibrate Ventures 2 ProRata AI, Howso
Capital One Ventures 2 Conjecture, HiddenLayer
Chingona Ventures 2 Optimal, CertKOR AI
Chris Re 2 Virtuous AI, Virtue AI
Datadog 2 Patronus AI, Arize AI
Eric Schmidt 2 Holistic AI, Goodfire
European Innovation Council (EIC) 2 Deeploy, QuantPi
European Union 2 Veil AI, Headai
Fin Capital 2 Liminal AI, Witness AI
Flybridge Capital Partners 2 Troj AI, BrightHire
Foundation Capital 2 Acuvity, Arize AI
Franklin Templeton 2 OneTrust, Betterdata