# Atrisa

> Atrisa (formerly Refortif AI) is a Y Combinator P26 startup building AI agents for analog circuit design. Its agentic workflow lets hardware engineers describe, design, debug and simulate analog circuits in natural language, encoding the 'tribal knowledge' of experienced analog designers that general-purpose LLMs never learned. Founded in 2026 in San Francisco by Sayan Mitra, Atman Kar and Rithik Jain, Atrisa integrates with existing PDKs, design docs and workflows to help engineers reason about topologies, parasitics and layout without leaving a chat-based interface.

- **Founded:** 2026
- **Headquarters:** San Francisco, California, United States
- **Founders:** Sayan Mitra (Co-founder & CEO), Atman Kar (Co-founder & CTO), Rithik Jain (Co-founder & COO)
- **Team size:** 3-4
- **Products:** Atrisa agentic design assistant, Workflow & PDK integration, Multi-agent collaboration
- **Notable:** Accepted into Y Combinator's Spring 2026 (P26) batch, Publicly launched AI agents for analog circuit design in 2026, Founded by engineers from KLA and Texas Instruments

## Products & services

- **Atrisa agentic design assistant** — A chat-based AI agent that lets engineers describe, design, debug and simulate analog circuits in natural language. It reasons hierarchically about circuits, matches topologies to specifications, and accounts for reusability, interference, parasitics and physical layout.
- **Workflow & PDK integration** — Integration with existing EDA workflows, process design kits (PDKs) and internal design documentation so the agent works alongside the tools engineers already use.
- **Multi-agent collaboration** — Coordinated agents that let engineers work across circuit blocks in parallel without blocking on a single expert's availability.

## Achievements

- Accepted into Y Combinator's Spring 2026 (P26) batch
- Publicly launched AI agents for analog circuit design in 2026
- Founded by engineers from KLA and Texas Instruments
- Rebranded from Refortif AI to Atrisa

## Latest updates

- **2026-03** — Reported seed funding; part of YC P26 batch.
- **2026-06** — Public launch of Atrisa's analog circuit design agents with a chat-based product and demo videos.

## Links

- Website: https://atrisa.ai
- LinkedIn: https://www.linkedin.com/company/atrisa-ai
- YouTube: https://www.youtube.com/@AtrisaAI

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Profile page: https://yespress.io/atrisa-yc-p26
Published by YesPress — https://yespress.io
Last updated: 2026-07-31