VC Explorer

Explore funding trends in the RAI space.


2025

53 rounds raised

$1,543m raised

2026

6 rounds raised -88.7%

$408m raised -73.6%


Investment Feed

Last updated: August 12, 2026 23:42:32

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

Fiddler AI

Raised $30.0M in Series C round
RPS Ventures, Lightspeed Venture Partners, Lux Capital, Insight Partners, Capgemini Ventures, Dallas VC, Dentsu Ventures, Mozilla Ventures, LG Technology Ventures, Benhamou Global Ventures, LDV Partners

January 2026

Witness AI

Raised $58.0M in Strategic round
Sound Ventures, Fin Capital, Qualcomm Ventures, Samsung Ventures, Forgepoint Capital Partners

January 2026

RAI-Leveraged Firms

Firm Name # RAI Investments Investments
Y Combinator 8 Pave, Openlayer, Athina AI, Nuanced, Armilla AI, Ambient AI, Humanly, Unbound Security
Lightspeed Venture Partners 6 Snorkel AI, Patronus AI, Fiddler AI, Virtuous AI, Virtue AI, Goodfire
Factory 4 Virtuous AI, Guardrails AI, Guardrail Technologies, Virtue AI
Insight Partners 4 HoneyHive, OneTrust, Laminar, Fiddler AI
Samsung Next 4 Fiddler AI, Bria, Bast AI, Gray Swan AI
Andreessen Horowitz 3 Hippocratic AI, Braintrust, Pave
Bessemer Venture Partners 3 Giskard AI, AIMon Labs, Pave
Bloomberg Beta 3 Fiddler AI, Guardrail Technologies, Guardrails AI
Gaingels 3 Rhino Health, TomtA AI, ValidMind
Index Ventures 3 Pave, BrightHire, Arthur AI
Mozilla Ventures 3 Credo AI, Fiddler AI, Trail ML
Plug and Play 3 Monitaur, Betterdata, Datatron
500 Startups 2 Impress AI, Datatron
AI Fund 2 Credo AI, ValidMind
Alpha Square Group 2 Fiddler AI, Unbound Security
Alumni Ventures 2 Trustible, Humanly
Amarjit Gill 2 Virtue AI, Virtuous AI
Calibrate Ventures 2 ProRata AI, Howso
Capital One Ventures 2 HiddenLayer, Conjecture
Chingona Ventures 2 CertKOR AI, Optimal
Chris Re 2 Virtue AI, Virtuous AI
Datadog 2 Patronus AI, Arize AI
Eric Schmidt 2 Goodfire, Holistic AI
European Innovation Council (EIC) 2 Deeploy, QuantPi
European Union 2 Headai, Veil AI
Fin Capital 2 Witness AI, Liminal AI
Flybridge Capital Partners 2 BrightHire, Troj AI
Foundation Capital 2 Acuvity, Arize AI
Franklin Templeton 2 Betterdata, OneTrust