35 years of business software engineering
C4J is a French technology group, founded and led by Jorge de Azevedo Mendes, in Auvergne. From healthcare to business management, we build software designed to last.
Our story
The adventure began in 1988 with CS3I (IT outsourcing and services). From this service-driven culture, Emed® was born as early as 2002 — a patient-record software still in production today and a market leader in medical records, notably across the clinics of the ELSAN group.
The expertise then extended to “offline-first” mobile applications with SAS Calaosoft, the group’s mobile studio — robust tools built for the field, even without a network connection.
From one company to the next, the same standard guides us: reliable software, maintained over time, designed and hosted in the European Union, and a close relationship with the people who use it.
C4J is the natural continuation of this story: more than 35 years designing, deploying and nurturing business software. Not just one more project, but the culmination of a genuine expertise.
Our brands & partners
The C4J ecosystem: our software and our trusted partners — the same demand for robustness in the service of your business.
Calaotrade
100% mobile sales CRM
The mobile sales-management app for field teams: customers, quotes, orders and service calls — working even offline. “Save 2 hours a day per sales rep.”
Visit the site →SAS Calaosoft
Mobile studio
The group’s “offline-first” mobile app studio: robust apps that keep working even without a network, out in the field.
Visit the site →SAS W3Plus
IT services · Vichy
Our services partner in Auvergne: web and intranet development, infrastructure, networks and managed services. A local approach, with fast and lasting answers.
Visit the site →What guides us
Four principles at the heart of every decision.
European & sovereign
Designed, developed and hosted in the European Union. Your data stays there, GDPR-compliant by design.
Software that lasts
We build tools made to be used for years — not passing trends. Emed® has been running since 2002.
Innovation that matters
Artificial intelligence and mobile at the service of everyday work — never as gadgets.
Close and attentive
An approachable team, with improvements driven by the field. Human scale as an advantage.
Let’s talk about your project
A business software need, a question about one of our products? The C4J team is here to help.
Creuzier-le-Neuf · Auvergne · France