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OneTriangle

YC S26

San Francisco, US · Founded 2026 · 4 employees · 6 known investors

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TrustAI provides workflow automation software that captures and distributes organizational knowledge and instincts through AI-driven suggestions, with transparency and human oversight. The platform enables teams to automate repetitive tasks while preserving judgment and expertise across the organization.

Also known as EvalAI · EvalAI, TrustAI Labs, TrustAI · TrustAI · TrustAI Labs

AI & Machine LearningCybersecurityData & InfrastructureEnterprise SoftwareSaaSArtificial IntelligenceOpen SourceInfrastructureUnited States of AmericaAmerica / Canada

Founders & leadership· Y Combinator alumni (S26)

OneTriangle was founded in 2026 by Hannah Chung and Medha Venkatapathy.

HCHannah Chung
Hannah ChungCo-founder, CEOHannah Chung studied computer science and economics at MIT, previously worked at Virtu Financial and the World Bank, and now leads TrustAI, a company focused on trustworthy AI systems.
MVMedha Venkatapathy
Medha VenkatapathyCo-founder · CTOMedha Venkatapathy studied physics and computer science at MIT and is building a browser automation company.

Investors · 6

Big Wok Venturesreported

How we know: Y Combinator's founder network · Not right? Tell us

FAST — by GETTYLABreportedSan Francisco · $100K

How we know: Y Combinator's founder network · Not right? Tell us

Lyra Capital Pty LtdreportedSydney

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Rock Yard VenturesreportedBuena Park · $10K – $100K

How we know: Y Combinator's founder network · Not right? Tell us

Snow Leopard Technology VenturesreportedPune

How we know: Y Combinator's founder network · Not right? Tell us

The YC application· Summer 2026 batch

Alumni Q&A

How did your company get started? (i.e., How did the founders meet? How did you come up with the idea? How did you decide to be a founder?)
The founders, Hannah and Medha, met at MIT three years ago and are now co-founding OneTriangle. Hannah focuses on scaling companies and Medha on turning ideas into products, and they built the company to work on latency, cost, and quality.
What is your long-term vision? If you truly succeed, what will be different about the world?
The founders aim to build AI agents that reliably carry out human intent while refusing actions that are unsafe, unlawful, or harmful, and to provide a compliance standard for agents to follow so human and agent intentions stay aligned.

Summarized from the founders' answers on their Y Combinator profile.

Images

OneTriangle photoOneTriangle photo

Related companies · 4

ReflexReflex is a platform for building and deploying enterprise applications in Python, combining framework, infrastructure, and data connectivity in a single unified system. It enables teams to develop, deploy, and manage production applications without fragmented tooling or multiple specialized roles.
MagnitudeMagnitude is an AI coding agent optimized for open-source language models like GLM, Kimi, and DeepSeek, designed to generate and execute code with improved reliability and efficiency. The platform serves software developers and teams looking to build with open weights models at lower cost than frontier API pricing.
RunAnywhereRunAnywhere is a research-first inference lab that hand-writes GPU kernels and develops SDKs to accelerate large language model inference on consumer silicon, particularly Apple devices. The company provides inference runtime software and open-source tools for developers deploying AI models on mobile and edge devices.
UnifyUnify provides AI agents that handle routine business tasks across communications, sales, operations, and engineering by executing pre-built workflows or custom automation. The service serves tech-focused companies and teams looking to offload administrative and repetitive work.

Companies working in the same space as OneTriangle.

Legal entities · 1

corporate structure
OneTriangle, Inc.

Frequently asked questions

What does OneTriangle do?
TrustAI provides workflow automation software that captures and distributes organizational knowledge and instincts through AI-driven suggestions, with transparency and human oversight. The platform enables teams to automate repetitive tasks while preserving judgment and expertise across the organization.
Who founded OneTriangle?
OneTriangle was founded by Hannah Chung, Medha Venkatapathy in 2026.
Who are OneTriangle's investors?
OneTriangle's investors include Y Combinator, Big Wok Ventures, FAST — by GETTYLAB, Lyra Capital Pty Ltd, Rock Yard Ventures, Snow Leopard Technology Ventures.
Where is OneTriangle headquartered?
OneTriangle is headquartered in San Francisco, US.