Company · About

We believe that
learning is a conversation

Complement was born from a deep conviction: learning should not be a passive performance. Real training is an exchange — with someone who answers your questions, challenges you, and adapts to you.

Founded January 2024

Location Paris & Puteaux

Funding raised €660,000

Sector EdTech · Training

Our reason for being

The best learning experience, accessible to all

We all know it: the best way to learn is a one-on-one conversation with someone who truly knows the subject. That person who answers your questions, adapts to your pace, and makes you rephrase what you don't yet understand.

Complement believes this experience should not be reserved for a few. We make it accessible — to any organisation, for all its learners, at any scale.

A trainer that speaks, listens, and adapts The avatar engages the learner in a genuine oral dialogue — not a multiple-choice form, not a silent video.

Tools in the hands of those who know Content experts create their own modules themselves, with no intermediaries or specialist instructional designers.

Training that learns by itself Every exchange between the avatar and a learner becomes a useful signal to improve the next training session.

Why current e-learning doesn't work

5–7%

of learners only complete non-mandatory e-learning courses, proving it is a poorly received format.

80%

of compliance content is not retained one week later. Passivity kills learning.

40%

of adults have a learning difficulty and require content to be adapted to their needs.

+€1,000

per minute of training video, renewed every year. A cost that is rarely justified.

50–100h

to produce a one-hour module with traditional tools. A barrier to any regular update.

Our story

A conviction founded in 2024

Complement was born from a simple question: why does the best learning experience — a real conversation with an expert — remain out of reach for the majority? AI finally made it possible to change that.

"The goal is to create digital learning as good as a video call with an expert, thanks to AI and photorealistic avatars. For people like me, who have attention difficulties, oral exchange formats make it easier to stay focused. That's what set us in motion."

Gabriel du Chalard CEO & Co-founder, Complement

January 2024

Complement founded

Gabriel du Chalard, Tristan de Bermingham and Coline found Complement with a shared conviction: learning should be a conversation, not a fixed format.

February 2025

Joining the IÉSEG incubator

The team joins the IÉSEG School of Management incubator in Puteaux — a partner school and the first real-world testing ground for the platform.

April 2025

First large-scale experiments

Complement deploys its first modules in real conditions, with pilot organisations in higher education and professional training.

December 2025

Moving to Station F

Complement joins Station F, the world's largest startup campus, and accelerates its product and commercial development at the heart of the Paris tech ecosystem.

February 2026

Fundraising — €660,000

Complement raises €660,000 to grow the team, accelerate product development, and build Europe's reference conversational e-learning platform.

Our values

What guides us every day

Values that don't just hang on a wall — they shape our product decisions, our client relationships and the way we work together.

The learner at the centre

Every decision starts with the same question: does this genuinely improve the learning experience? Not our revenue, not a growth metric — the learner's experience.

Impact before aesthetics

We don't measure our success by the elegance of our interfaces, but by our clients' results. One extra point of completion rate means dozens of people who truly learned something.

Simplicity, always

If it's hard to understand, we're not done yet. At Complement, simplicity isn't a luxury or an aesthetic choice — it's what lets any trainer create without needing training themselves.

Speed and honesty

We ship, we measure, we own our mistakes. An imperfect idea that's tested is worth more than a perfect idea never shipped. And when we're wrong, we say so — to our team and to our clients.

Trust and transparency

Our clients always know where the product stands, what works and what doesn't yet. We prefer an honest partnership to a comfortable but hollow commercial relationship.

Designed for everyone, from day one

40% of adults have a learning difficulty. We don't treat accessibility as a constraint to handle later — it has been part of the product since the very first day.

The team