This selection of environmental services companies in Hauts-de-Seine includes a mix of large established groups and mid-sized firms. Their activities span a wide range, from nuclear materials management by Orano and water services by SAUR, to risk management from Apave and ecological landscaping by idverde FR. Other firms like SULO Group focus on waste management, while Rentokil Initial France provides pest control and hygiene solutions.
A notable pattern among these companies is their long history; many were founded in the early to mid-20th century, indicating a sector with deep roots in the region. Headquarter locations are spread across the department, with clusters in Courbevoie, Nanterre, and Colombes.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Oranoorano.group
International operator in nuclear materials, provides high-value products and services across the entire fuel cycle, addressing energy and health challenges through expertise and innovation. |
12,605 | |||
| 2 | 9,778 | ||||
| 3 | 6,850 | ||||
| 4 |
Dekra Francedekra.fr
Inspection, certification, risk management, audits, training, and consulting services for automotive, transport, industry, environment, and safety sectors. |
3,188 | |||
| 5 |
idverde FRidverde.fr
Specializes in ecological landscaping, green space creation, maintenance, and innovative solutions supporting biodiversity and climate resilience across Europe. |
2,616 | |||
| 6 |
SOLIDARIT脡S INTERNATIONALsolidarites.org
Provide emergency aid to populations affected by conflicts, epidemics, disasters, and economic collapse, focusing on food, water, shelter, hygiene. |
2,044 | |||
| 7 | 1,549 | ||||
| 8 |
SULO Groupsulo-group.com
It provides waste management services to local authorities and businesses, focusing on efficient and sustainable waste disposal and recycling solutions. |
1,097 | |||
| 9 |
Rentokil Initial Francerentokil-initial.com
Pest control, hygiene solutions, cleaning, catering, interior landscaping, package delivery, and integrated facilities services for diverse customers. |
979 | |||
| 10 | 781 | ||||
| 11 | 731 | ||||
| 12 |
SULO Francesulo.fr
Partner for local authorities and businesses providing waste management solutions, recycling services, and sustainable environmental practices. |
486 | |||
| 13 |
SPAC SAS (Groupe Colas)
Specialized in transportation and distribution projects for gas, water, electricity, and industrial energy networks with global and local expertise. |
464 | |||
| 14 | 384 | ||||
| 15 |
Grand Paris Seine Ouest (GPSO)seineouest.fr
An establishment managing economic development, urban planning, social housing, environment protection, and cultural & sports facilities in 8 cities |
349 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
Agence de l'eau Seine-Normandieeau-seine-normandie.fr
Support sustainable water resource management and aquatic environment preservation through funding local projects and developing water policy strategies. |
333 | |||
| 17 |
SARIA Francerecrutement.saria.fr
A family-owned entity specializing in collecting, transforming, and valorizing animal and food-based materials for various purposes across different industries |
319 | |||
| 18 |
ecosystemecosystem.eco
Non-profit organization for WEEE lifecycle management. Supporting repair, reuse, depollution, and recycling of electrical and electronic equipment, bulbs, and batteries. |
302 | |||
| 19 |
Vall茅e Sud - Grand Parisvalleesud.fr
An Etablissement Public Territorial formed in 2016 within the Grand Paris Metropolitan Area, uniting 11 cities in Hauts-de-Seine for local governance |
288 | |||
| 20 |
Cise TPcisetp.com
Specialized in installing potable water, wastewater, stormwater pipes, diverse networks, and autonomous sanitation systems with ISO certifications. |
276 | |||
| 21 |
Croix-Rouge insertioncroix-rouge.fr
The company engages in logistics, reuse, organic market gardening, and maintenance of natural and green spaces, focusing on human dignity. |
223 | |||
| 22 |
Actierraactierra.fr
It specializes in ecological transition, providing consultancy services to address environmental challenges through diagnosis, recommendations, and project management. |
202 | |||
| 23 |
Groupe BURGEAPginger-burgeap.com
A team of engineers providing technical expertise in environmental preservation, sustainable development, and energy transition for public and private clients worldwide |
186 | |||
| 24 |
SARP HYGI脠NE B脗TIMENT (SHB)shb-france.fr
A subsidiary of Veolia, specializing in disinfection, pest control, indoor air quality, and maintenance of ventilation systems through dedicated services and agencies |
170 | |||
| 25 |
VALOBATvalobat.fr
A group of 50 construction product manufacturers collaborate to establish an eco-organization dedicated to advancing the recycling of building waste |
120 | |||
| 26 |
SOVEA Groupesoveagroupe.fr
Specialist in disaster management in France, offering solutions for fire, water damage, asbestos removal, air treatment, industrial management, and high-altitude work |
102 | |||
| 27 | 99 | ||||
| 28 |
ASSOCIATION ESPACESassociation-espaces.org
Civic and social organization based in Chaville, Hauts-de-Seine, France, focusing on community engagement and social initiatives. |
98 | |||
| 29 |
Eranoveeranove.com
A leading company in West Africa specializing in electricity, water production, and public utility management with expertise in value chains |
96 | |||
| 30 |
KEONkeon-group.com
A French company specializing in methane solutions, including project development, construction, maintenance, and organic materials supply, with a multidisciplinary team of experts |
93 | |||
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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 11, 2026.
More company lists in the Hauts-de-Seine department
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The same list elsewhere in France
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