
ACCENSEO is a founder-led consulting and software engineering firm based in Paris. Small by choice, exacting by conviction.
ACCENSEO was founded in Paris in June 2024 by José DA COSTA, a software engineer, around a simple conviction: enterprise-grade engineering should not require enterprise-scale bureaucracy.
We operate as a deliberately small practice — few engagements at a time, the founder involved in each one, and no gap between the person you talk to and the person who does the work.
Our references are the standards of the leading consultancies — rigor, method, accountability — applied with the focus and directness only an independent boutique can offer.


To give businesses software they can build on: designed with intent, engineered with rigor, and maintained with care — through consulting, custom development, solution integration, cloud, and hosting.
To prove that a small, founder-led firm can deliver work at the standard of the largest consultancies — and be chosen for exactly that.
The principles behind every decision we make.
We stay close to the state of the art and adopt new technologies when they serve the client — never for their own sake.
We hold every line of code, every architecture decision, and every recommendation to the same exacting standard.
We say what we think, commit only to what we can deliver, and put the client's interest before our own convenience.
We work with our clients, not just for them — sharing context, decisions, and knowledge at every step.
We judge our work by the outcomes it creates in production, not by the effort it took to build.
We keep the structure small and decisions close to the work, so we can adapt quickly without sacrificing quality.

In the heart of the Parisian golden triangle
ACCENSEO SAS is incorporated in Paris on June 14, 2024, with its head office at 60 Rue François 1er, in the 8th arrondissement.
The brand is registered in June 2024, anchoring the identity of the firm.
Five core areas are defined: IT consulting, custom software development, software maintenance, cloud and hosting, and solution integration.
Continuous investment in engineering standards, delivery practices, and tooling — the groundwork of a firm built to last.
The person behind ACCENSEO.
A software engineer by background, José founded ACCENSEO in 2024 and leads every engagement personally — from architecture decisions to production delivery.
Our technology partners

Whether you are a future client, partner or talent, we would love to talk with you.