Who are we?
HETWA is an environmental SAS providing scientific and technical services relating to environmental issues and risk management in France and abroad.
Our project began in 2021 thanks to the Doc'Occitanie 2021 program focused on the technical valorization of thesis work.
Our team is made up of SWAT model experts with over 10 years' experience in environmental modeling at different spatial scales (from 202 km² to 773,000 km²) and temporal scales (daily, monthly, annual) covering various climate scenarios. We are a dynamic, multidisciplinary team.


ROXELANE CAKIR
Founder and CEO

VANESSA DOS SANTOS
Geosciences and Environment Research Engineer

PIERRE CHEVALIER
CTO
Pierre, an INSA engineer by training, is an incredible self-taught man. His impressive track record shows strong skills in software architecture, competitive intelligence and strategy development. Today, he is developing the MEWISO tool chain and decision support platform for HETWA

MATHILDE JOFFRE
PhD Student - Environment and ecology design engineer

YOUSSEF LAHYAN
UX/UI Designer - Frontend Developer

SIMON LAPEYRE
Ingénieur en Data Science

REZA HOSSEINI
Data Scientist
Passionné par l’intelligence artificielle, Reza met son expertise en science des données au service des entreprises pour les aider à intégrer l’IA et optimiser leurs processus décisionnels. Avec une solide expérience en Machine Learning et en analyse environnementale, il développe des solutions innovantes qui permettent de mieux comprendre les dynamiques territoriales et d’agir pour un avenir durable. Son approche combine technologie avancée et impact tangible sur les enjeux écologiques.

EMILIE MATHEZ
Business Developer

An offer tailored to your needs
The company has two main activities:
- The activity of environmental consultancy to provide and help diagnose problems linked to water and soil management.
– An innovation branch, which develops an environmental management platform for real-time monitoring of water resources at different management scales (water bodies, sub-basins, hydrological catchment areas, SDAGE) in terms of quality and quantity.
These two activities draw on our expertise in data processing and model deployment, as well as our environmental and ecological know-how.
Our Values
The HETWA start-up aims to change the traditional way of doing things, by offering a more virtuous service in terms of both the environment and corporate social responsibility.
A team that listens
Ecological and environmental commitment
Organization Horizontal
Free and concise work