Turning real-world experience into digital solutions

We bring together real-world experience, behavior analysis, and software engineering to create digital solutions that genuinely benefit professionals, organizations, and families.

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Our story

Technology born from practice

Since 2009, our team has been developing tools that address needs identified in real-world practice. Behavior Analysis Technology was born from the collaboration of experienced behavior analysis professionals and a software design specialist.

Our goal is simple: to turn needs identified in the field into reliable, accessible, and easy-to-use digital tools. This approach led to ABA‑Assistant, a platform that centralizes the collection, visualization, and analysis of behavioral data.

We develop our solutions with one strong conviction: technology should lighten the daily workload and make information clearer, without ever replacing human expertise.

  • Real-world expertise

    Solutions designed around real practices and constraints.

  • A data-driven culture

    Structured information to support better-informed decisions.

  • Accessible design

    Easy-to-use tools for desktop, tablet, and smartphone.

Our journey

Innovation built over time

Each step in our journey brings real-world expertise and the possibilities of digital technology closer together.

  1. 2009

    BA‑eService is founded, developing day-to-day real-world expertise.

  2. 2011

    The first internal digital tools are designed to structure data.

  3. 2020

    ABA‑Assistant is publicly launched after nearly ten years of experimentation.

  4. Today

    Continuous improvement of the platform and development of new solutions.

Our team

Complementary skills serving one shared project

Our team combines psychology, applied behavior analysis, real-world experience, and computer science to design coherent end-to-end solutions.

Portrait of Alexandra LecestrePsychologist and BCBA

Alexandra Lecestre

Alexandra graduated in child and adolescent psychology with a specialization in applied behavior analysis from Lille III University in 2008 and earned her BCBA certification in 2016. A co-founder of BA‑eService, she supervises a team of ABA-trained technicians.

In addition to her BCBA certification, she is IBA-certified by IBAO and ACC-A-certified by ONPAC, where she is an active member.

Her clinical experience and understanding of professionals’ day-to-day needs ensure that BAT solutions remain grounded in real-world practice.

Portrait of Jean-René CourtaultPresident · PhD in Computer Science

Jean‑René Courtault

With a PhD in Computer Science, Jean‑René focused his research on resource logics, modeling, proof, and verification. He then worked in banking, insurance, healthcare, and retail.

At BAT, he turns functional requirements into reliable, high-performance, easy-to-use software. His technology expertise helped bring ABA‑Assistant to life.

Portrait of Laurent KeserManaging Director

Laurent Keser

A behavior technician since 2009, Laurent has been certified since 2015. He currently holds IBT, TEC-C, and TAGteach Level 1 certifications, as well as a certificate in Organizational Behavior Management from the Florida Institute of Technology. A co-founder of BA‑eService, he initiated the first internal data platform in 2011.

His experience in the field, training, and the dissemination of behavior analysis guides the development of practical, accessible solutions tailored to professional practice.

What guides our work

Every feature is designed to be useful, understandable, and suited to users’ real-world needs.

  • Usefulness

    Start with real-world needs and solve practical problems.

  • Rigor

    Enable structured data collection and clear interpretation.

  • Collaboration

    Streamline communication among professionals, organizations, and families.

  • Trust

    Develop reliable tools with secure hosting in the European Union.

Would you like to discover our approach?

Tell us about your needs and discover how ABA‑Assistant can simplify the collection, analysis, and sharing of your data.

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Our ambition is to develop useful technologies that serve professionals and the people they support.