The environmental services companies in Haute-Garonne primarily consist of mid-sized firms and young companies focused on sustainable resource management and environmental protection. CLS Group (Collecte Localisation Satellites) is a global pioneer in satellite-based monitoring for Earth resources, while COVED specializes in waste management solutions. DPSM rehabilitates underground structures for water and industrial fluids, and agence de l'eau Adour-Garonne funds water pollution control.
A notable pattern among these companies is the strong concentration of headquarters in Toulouse, indicating a regional hub for environmental services. Many of these firms, such as COZYNERGY, Mercator Ocean International, and AREC Occitanie, are involved in energy renovation, ocean analysis, and supporting energy transition solutions.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
CLS Group (Collecte Localisation Satellites)cls.fr
global pioneer providing monitoring and surveillance solutions for the Earth, managing resources sustainably using space-based technology and data processing. |
788 | |||
| 2 | 704 | ||||
| 3 | 635 | ||||
| 4 |
agence de l'eau Adour-Garonneeau-grandsudouest.fr
Public agency collecting fees from polluting activities, funding water pollution control, resource preservation, and aquatic environment knowledge in Adour-Garonne basin. |
181 | |||
| 5 |
COZYNERGYcozynergy.com
A French company offering comprehensive energy renovation solutions for homes, aiming to improve comfort, property value, and energy savings for customers |
125 | |||
| 6 |
Mercator Ocean Internationalmercator-ocean.eu
Development and maintenance of an operational system for global and regional ocean analysis, forecasting, and marine resource conservation services. |
124 | |||
| 7 |
AREC Occitaniearec-occitanie.fr
Development and support of tailored energy transition solutions for regional actors, ensuring project realization and financing across the entire value chain. |
72 | |||
| 8 | 70 | ||||
| 9 |
Eau de Toulouse Métropoleeaudetoulousemetropole.fr
A public service managing water supply, sanitation, and stormwater for Toulouse Metro area, with a focus on innovation, sustainability, and community engagement |
63 | |||
| 10 | 62 | ||||
| 11 |
Ynergieynergie.com
Ynergie offers tailor-made support for energy efficiency projects, with proven expertise, personalized guidance, long-term commitment, and operations management Specializing in renovations and construction #energy |
60 | |||
| 12 |
Valdeliavaldelia.org
Valdelia is a non-profit organization in France that manages the collection, reuse, and recycling of professional furniture waste and building construction products |
60 | |||
| 13 |
OREADE BRECHEoreade-breche.com
With 30 years of experience, our company specializes in international consulting in environment and development, offering a wide range of technical and social expertise |
59 | |||
| 14 |
vorteX-iovortex-io.fr
Offers hydrology monitoring services using compact space-based altimeters, derived from satellite altimetry, to accurately measure water surface heights. |
40 | |||
| 15 |
CLER VERTScler-verts.fr
Specialist in collecting and valorizing organic waste including wood, plant debris, composting, and methanization with operational expertise. |
37 | |||
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| 16 |
Murmurationmurmuration-sas.com
Utilizes satellite Earth Observation and other data to create environmental monitoring dashboards for decision-makers and local authorities regarding territories' environmental conditions and tourism pressure. |
34 | |||
| 17 | 24 | ||||
| 18 | 23 | ||||
| 19 |
ASOS Assainissementasos-assainissement.com
Specialized plumbing company in real estate for over 10 years, now a French leader in non-destructive rehabilitation of pipes with innovative technologies |
22 | |||
| 20 |
Enosisenosis-energies.com
The company develops and sells equipment to recycle CO2, produce renewable gas, and facilitate the integration of electricity and gas networks |
21 | |||
| 21 |
Biova Francebiova-france.fr
Specializing in plant pathology analysis, environmental training, and consulting services to promote sustainable agricultural practices and reduce chemical pesticide use Sharing knowledge for plant health 🌱 |
18 | |||
| 22 |
YEP HABITATyephabitat.fr
Yep Habitat specializes in energy renovation, providing solutions for home improvement such as insulation, ventilation, and air purification in Occitanie region |
18 | |||
| 23 | 18 | ||||
| 24 |
The Climate Companytheclimatecompany.eu
scientific methods and algorithms for urban-scale climate risk exposure assessment, supporting adaptation decisions for cities, buildings, and infrastructure |
16 | |||
| 25 |
take[air]takeair.fr
Aiming to combat climate change, this company offers a digital SaaS solution for measuring, reducing, and managing CO2 emissions with expert support |
13 | |||
| 26 |
Toxi Plantoxiplan.com
Regulatory (eco)toxicology services company offering assessments and support for placing products on the market, specializing in various sectors like cosmetics and pharmaceuticals |
11 | |||
| 27 |
Pixstartpixstart.io
Analyzes satellite imagery using machine learning for urban classification, infrastructure monitoring, and environmental tracking to support strategic decision-making and direct marketing services. |
9 | |||
| 28 |
ARPE Midi-Pyrénéesarec-occitanie.fr
Regional agency supporting local governments in sustainable development, ecological and energy transition, and data analysis in the Occitanie region |
6 | |||
| 29 |
Mayet Parcs et Jardinsmayet-parcs-jardins.fr
A landscaping company in southern France offering tailored green space design, from consultation to maintenance, ensuring quality, efficiency, and customer satisfaction |
5 | |||
| 30 | 5 | ||||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 13, 2026.
More company lists in the Haute-Garonne department
- The largest companies in the Haute-Garonne department 2,402
- Companies with in-house R&D in the Haute-Garonne department 323
- Multinational companies in the Haute-Garonne department 246
- Retail chains in the Haute-Garonne department 222
- Professional services firms in the Haute-Garonne department 208
- Aerospace and defence companies in the Haute-Garonne department 186
- Manufacturers in the Haute-Garonne department 159
- IT services companies in the Haute-Garonne department 158
- IT Services and IT Consulting companies in the Haute-Garonne department 152
- SaaS companies in the Haute-Garonne department 147
- Consulting firms in the Haute-Garonne department 145
- Software Development companies in the Haute-Garonne department 140
- Hardware manufacturers in the Haute-Garonne department 137
- Public sector organisations in the Haute-Garonne department 110
- Business Consulting and Services companies in the Haute-Garonne department 104
- Real Estate companies in the Haute-Garonne department 104
- Aviation and Aerospace Component Manufacturing companies in the Haute-Garonne department 102
- Distributors and wholesalers in the Haute-Garonne department 98
- Education providers in the Haute-Garonne department 94
- Family-owned companies in the Haute-Garonne department 72
- Financial services firms in the Haute-Garonne department 69
- Higher Education companies in the Haute-Garonne department 66
- Critical infrastructure operators in the Haute-Garonne department 64
- Retail companies in the Haute-Garonne department 63
The same list elsewhere in France
- Environmental Services companies in France 1,077
- Environmental Services companies in Île-de-France 451
- Environmental Services companies in Auvergne-Rhône-Alpes 129
- Environmental Services companies in the Hauts-de-Seine department 88
- Environmental Services companies in Provence-Alpes-Côte d'Azur 80
- Environmental Services companies in Nouvelle-Aquitaine 76
- Environmental Services companies in the Rhône department 76
- Environmental Services companies in Grand Est 68
- Environmental Services companies in Occitanie 65
- Environmental Services companies in the Bouches-du-Rhône department 54
- Environmental Services companies in Hauts-de-France 53
- Environmental Services companies in Pays de la Loire 39
- Environmental Services companies in the Gironde department 38
- Environmental Services companies in the Seine-Saint-Denis department 36
- Environmental Services companies in Brittany 34
- Environmental Services companies in the Nord department 31
- Environmental Services companies in the Yvelines department 27
- Environmental Services companies in the Essonne department 25
- Environmental Services companies in Paris 202
- Environmental Services companies in Lyon 37