Constellan makes products from what is already there: knowledge, routines, machines, software, and people. The new part is the way they work together.
See what is taking shape ↓Constellan is working on its first two products.
Project oneIn development
Long-lived products leave knowledge spread across manuals, product history, past cases, and experienced people.
A product is being developed for hardware call centers that need a dependable answer while the customer is still on the line. Specifications, UX work, and coded prototypes exist. Design partners are next.
Project twoMVP built · User testing next
Expenses happen. Things need doing. Something runs out. A routine comes around again.
All of it already exists in a household. Keeping it current, shared, and usable too often lives in one person's head. An MVP has been built to take some of that weight.
Most of what is needed already exists.
Someone still has to hold the pieces together.
Before making a product, Constellan finds the people who have the problem and asks whether it is actually theirs.
It can be in a database, a manual, a machine, a routine, or someone's experience. It can be difficult to reach. It does not have to be neatly organised. But there has to be something real to work with.
A prototype can prove that something is possible. A finished product has to keep doing the job on an ordinary day, without someone holding it together by hand.
Constellan was started in Japan in 2026 by Sébastien Menin.
I started in customer support and call centers, then moved through internal systems, international IT, product development, project management, business development, and AI-driven R&D.
At Aiphone, I spent almost nine years building and connecting operational systems across international teams.
At Fenrir, the work expanded across larger digital products, design and engineering teams, international business, and AI-driven development.
The titles changed. A recurring part of the work did not: finding useful things that could not yet meet, and making the connection practical.
More about Constellan →Commissioned work
Constellan also takes commissioned work.
That can mean understanding a problem, structuring the work, making a prototype, improving a workflow, or building a smaller internal product when that is the right answer.
Consulting is different from Constellan's own products. The standard behind the work is not.
Make the new obvious.