Y Combinator Portfolio Companies

Prototyping.io provides an AI-driven platform to analyze CAD designs and manufacture custom mechanical parts.

Foaster is a consulting company that provides AI-driven consulting services for enterprise AI transformation and workforce upskilling.

BioStack is a digital platform that provides healthcare AI training environments and curated multimodal clinical datasets.

InLoop Robotics develops bimanual robotic systems and RaaS solutions for manufacturing, assembly, and logistics workflows.

Regbase provides an AI-driven regulatory intelligence platform for tracking global laws, consultations, and grants.

AICE Power develops autonomous subsea drones for monitoring and protecting critical infrastructure and underwater security operations.

Pavoot provides an AI agent that manages event workflows and turns event engagement into sales pipeline.

Maquoketa Research develops autonomous attack drones, guidance software, and control systems for defense applications.

Savant is a data tool that organizes scattered company data into structured, searchable operating context for people and AI.

Interfaze develops AI APIs for OCR, web scraping, speech recognition, classification, and structured data extraction workflows.

Humwork is an technology platform that connects AI agents to human experts such as engineers, lawyers, doctors, researchers, and more.

Fuchsia is a AI native service provider company that offers a platform for hardware compliance and documentation services.

Juno provides an AI health companion for chronic illness management, symptom tracking, and care coordination.

Pentagon develops software for coordinating AI agents, enabling communication, task management, and shared memory.

Chert builds an API platform for AI-powered messaging agents and sales outreach on iMessage and other direct messaging channels.

River Markets is a financial tool that allows traders and users to focus on alpha by handling their execution and trading infrastructure.

Nine Fives develops networked, driverless RF test equipment and control software for electronic measurement applications.

Sherpa is a software development company that automatically optimizes and improves websites based on the behaviour and versions of the site.

Adialante develops low-cost, clinical-grade MRI systems and related services for accessible cancer and neuroimaging screening.

Saffron is an AI technical assessment platform that measures how software engineers use AI to build, debug, and ship software.

YouArt develops AI tools for generating images and videos through workflow-based creative agents and multimodel automation.

Cignara is an agentic AI company that provides AI voice, chat, and copilot agents for enterprise customer support and sales operations.

Sidekick is an AI SMS assistant that gives frontline and deskless workers instant answers from company knowledge, and training materials.

Cohesion develops AI-driven research tools that automate public equity investment workflows for institutional investors.

Matforge develop AI systems that act as scientists, finding the advanced materials needed to build better microchips and faster datacenters.