Founder of a listed tool
Romain Sestier
Co-founder and CEO, named behind the StackOne listing on Anchor Terminal.
What Romain builds
StackOne B · Agent tool access
StackOne is a hosted gateway from StackOne Technologies Limited that gives AI agents actions across more than 540 business apps over MCP, SDKs, A2A or HTTP, with managed authentication, per-user grants, policies and logs.
Co-founder and CEO, researched 27 October 2026 · the people behind it
Works with
- Guillaume Lebedel Co-founder and CTO
Backed by
GV Workday XTX Ventures Episode 1 Playfair Capital Portfolio Ventures Revenue Syndicate Sequoia Capital Blissgrowth Charlie Songhurst
Questions
Who is Romain Sestier?
Romain Sestier is co-founder and CEO of StackOne, whose tool gateway connects AI agents to business systems under permissions set by IT. He started the company in 2023 after leaving Google. He and co-founder Guillaume Lebedel had worked together for more than ten years building SaaS products at Google, Oracle and Yieldify.
What does StackOne Technologies Limited make?
Anchor Terminal lists StackOne from StackOne Technologies Limited. StackOne is a hosted gateway from StackOne Technologies Limited that gives AI agents actions across more than 540 business apps over MCP, SDKs, A2A or HTTP, with managed authentication, per-user grants, policies and logs.
Who has invested in StackOne Technologies Limited?
The sources our research read name GV, Workday, XTX Ventures, Episode 1, Playfair Capital, Portfolio Ventures, Revenue Syndicate, Sequoia Capital, Blissgrowth and Charlie Songhurst.
How are Romain's tools graded?
StackOne is graded B, 69.2 out of 100, on Anchor Terminal's benchmark, which scores every listing against the same checklist.
Sources (5)
These are the people building the tools we list, named for their public role in the company or project behind a listing, from public pages, with the date it was researched. They don't work for Anchor Terminal (our own team is on the about page). We show public roles, public profiles and what the listing pages show, nothing private. To correct something, send an about or a photo, or have a page removed, write to privacy@anchorterminal.com.