We help organizations navigate the transition ahead
Bleen is a Brussels-based sustainability consultancy. We help organisations decarbonise, protect biodiversity, include people, and turn regulatory pressure into a competitive edge. We build the resilience they need to stay in the game for the long run. Since day one, we’ve operated on a single belief: the ecological transition is not a constraint. It’s the biggest redesign opportunity of our generation.
Decarbonized economy
The climate crisis leaves no room for delay: the shift to a carbon-neutral economy is no longer a choice, but a race we cannot afford to lose. A global energy transition is our fastest route to a decarbonized economy.
Regenerative economy
With the current erosion of biodiversity, our planet faces the threat of a sixth mass extinction. Let's orient ourselves towards regenerative models.
Distributive economy
The world is currently unjust in terms of human rights and discrimination. We fight for more social justice.
Resilient economy
In an era of escalating disruptions, from climate shocks to geopolitical instability, we must build economic systems capable of adapting, recovering, and thriving through uncertainty.
Our services
Three ways we work with you.
ESG Consulting
Strategy, carbon accounting, biodiversity plans, social audits, regulatory compliance (CSRD, Taxonomy, SFDR), stakeholder engagement. Seven practice areas, one methodology. We go from diagnostic to roadmap to implementation.
Capability as a Service
Not every organisation needs a full-time sustainability or transition team. We provide embedded consultants, from analysts to a full Chief Sustainability Officer, who join your teams from a few days a month up to full-time. Same rigour, without the overhead of a permanent hire.
Academy
50+ workshops, serious games, and training programmes. Climate Fresk, 2tonnes, MyC02, and many more. We’ve trained over 5,000 people across sectors. The format adapts: from a 1 hour conference to a multi-day leadership programme.
Practitioners, not preachers.
Our team brings together engineers, economists, environmental scientists, facilitators, and policy experts. Different backgrounds, one shared conviction: sustainability gets real when it meets operations.
Olivier De Schutter
Sam De Swaef
Valentin Plumier
Clara Michelet
Juliette Tomme
Diego Callizo
Léa Tingaud
Augustin Collette
Clelia Verligkas
Maxime Nunes Da Silva
Soumia Sassoui
Thomas Rafflin
Miljan Simovic
Mohammed Ibnoucheikh
Christian Murenzi
Iheb Ezzaeir
Stéphane Vanschoors
Renaud Preat
Nicolas Henry
Mickael Adeline
Otman Borahsasar
Yves Hulet
Olivier Platbrood
Ramla Mohamed
The numbers behind the work.
100+
Organizations guided through ESG transformation
9
Industries served with sector-specific expertise
5,000+
Employees trained in sustainability practices
Trusted by 100+ customers building what matters
Let’s talk about your transition.
Whether you’re starting your ESG journey or accelerating it, we’d rather have a real conversation than send you a brochure. Tell us where you are. We’ll tell you what we’d do.
Build what matters.
We’re always looking for people who’d rather fix systems than write reports about them. If that sounds like you, we’d like to hear from you. No matter your background.