About Antasphere

One company, two halves, one argument.

Antasphere is an applied AI research lab and a software studio, built in Brussels. The Labs makes the tools agents work with. The Studio ships software companies own, produced on those same tools. Each half is the reason the other one works.

What we are

Two things under one roof. They look like two businesses, and the question anybody sensible asks is why they carry one name.

The Labs

An applied AI research lab.

We build tools for agents, not agents. Exos runs the delivery, Clave runs the sessions, Slideless carries what a project knows. Open source first, and each one is used inside the Studio every day before anyone else sees it.

See the Labs

The Studio

An AI-native software agency.

Custom software for companies who have outgrown what they can rent, produced by agents on the Labs' own tools and answered for by people who stay. Delivered in weeks, and the client owns every line of it.

See the Studio

Why both, under one name

The two halves are one circle.

The Studio works on real systems for real companies, under a deadline, with somebody's name on the result. That is where we find out what the toolchain of the agent era actually has to do, because nothing else tells you: a tool that survives a client engagement is a tool that works. The Labs then builds it properly, and the Studio delivers faster on it the next time. Every turn of the circle makes both halves better, and neither half could run it alone.

Three things we believe

Three of them, and they are not a list: each one forces the next, and the last one is why the Studio has clients.

  1. First

    Everyone will have an agent.

    Agents themselves are becoming a commodity: the frontier labs ship them, and a loop with tools is not where the difficulty lives any more. So everybody gets one, and it answers to them. The agentic layer belongs to the person, not to the product they happen to be using.

  2. So

    Agents become the primary users of software.

    If your agent reads the source and does the work, your agent is the one operating the software. Execution moves across; people become the orchestrators. Almost nothing shipped in the last decade was designed for a user that reads rather than looks.

  3. So

    Companies will own their tools.

    Writing software stopped being the expensive part, so renting a compromise built for a thousand other companies stopped being the sensible trade. Businesses are rebuilding their own environment to own it outright, and to fit agents as users. That is the work the Studio already does.

One loop, run fast

  1. 01

    Build

    Born from our own needs, shipped on our own tools, in weeks.

  2. 02

    Real users

    Nothing counts until it is in front of people with real work.

  3. 03

    Learn

    What breaks teaches us where the frontier actually is.

  4. 04

    Scale it or kill it

    What holds becomes a product. What does not, we drop without ceremony.

The speed of that loop, and everything that compounds with each cycle, is the asset. And when an engagement reveals a real market, we build the product with the people who know the domain, and own it together.

The people

  • Romain Pattyn

    Co-founder

    Out of building and running a software agency.

  • Luca Derumier

    Co-founder

    Out of years of AI modelling for the pharmaceutical industry.

  • Valentin Dosimont

    Forward deployed engineer

    Joined September 2026, and sits inside the engagements.

Brussels. A small team, a large fleet of agents, and a rule that anything we ask a client to run, we run ourselves first.

A figure standing by a bright window in a dark room, pulled into streaks by a slow shutter.
The drag Finding the line is the job.

Who we are.

Antasphere exists to build the reference toolchain of the agent era: the instruments agents work with, and the proof, delivered daily on real work, that they hold. This is not a niche. It is a category being born, and we intend to lead it.

The organisation is larger than its payroll. A fleet of agents runs through every part of the operation, and most of what Antasphere ships has passed through their hands, this page included. What we ask a client to run, we have run ourselves first.

How people and their agents end up sharing the work is still an open question, and it moves every month. Antasphere is how we go and find out, and what we find becomes product.

Romain Pattyn and Luca Derumier, founders

The two hemispheres

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