OptimizerAI generates custom sound effects from text prompts for game developers and creators.

Minerva is an AI platform that helps consumer marketing leaders unify first-party data and automate acquisition decisions.

AI licensing and protection platform that helps creators authenticate and monetize digital content.

AI-powered search, advertising, and attribution platform that compensates content creators for AI use of their work.

Reflection AI develops frontier open-weight language models and autonomous coding agents using reinforcement learning post-training.

PhysicsX builds AI-native engineering software that accelerates physics simulation and design for industrial organizations.

Y CombinatorS23

AI platform transforming technical documentation into intelligent assistants for accurate question answering.

Meshy develops AI-powered 3D generation tools for creators and developers.

Hyper3D develops Rodin AI, a generative 3D platform for creating digital humans and 3D assets.

Fonoa automates indirect tax compliance for global digital businesses.

Venice AI is a private, uncensored AI platform for text, image, and video generation.

Vast builds Tripo AI, a generative 3D platform for text-to-3D asset creation.

AI-native construction procurement platform that reads plans and automates bidding.

Project Prometheus is a physical AI startup co-founded by Jeff Bezos and Vik Bajaj in 2025.

Techstars: Seattle2011

Outreach is the agentic AI platform for revenue teams that unifies sales engagement, forecasting, and conversation intelligence.

Factory builds enterprise AI coding agents called Droids for software development automation across IDEs, terminals, and CI/CD pipelines.

Anthropic is an AI safety and research company building reliable, interpretable, and steerable AI systems.

Luma AI builds AI-powered creative agents and multimodal models including Dream Machine, Ray3.2, and Uni-1.

AI attribution platform that creates AI DNA for media to trace how generative AI models use creative works.

ListEngage is a Salesforce Summit partner specializing in marketing automation, data integration, and AI advisory services for enterprises.

Vercept was a Seattle-based AI startup building computer-use AI agents, acquired by Anthropic in February 2026.