# Top 30 environmental services companies in the Bouches-du-Rhône department

Tamtam tracks 60 environmental services companies headquartered in the Bouches-du-Rhône department. This list ranks the 30 largest by number of employees on LinkedIn, led by Onet SA, Ortec Group and Métropole Aix-Marseille-Provence. Their median headcount is 94. Half of them were founded in 1992 or later. The most common headquarters are Marseille (8), Aix-en-Provence (4) and Gémenos (3).

The Bouches-du-Rhône department hosts a range of environmental services companies, from large established groups to mid-sized firms. These companies primarily focus on water management, waste treatment, and industrial services. Key players include Onet SA, a family service group offering cleaning and security; Ortec Group, providing multidisciplinary services for industry and environment; Société du canal de Provence, which designs and operates hydraulic systems for water supply; and Société des Eaux de Marseille, managing water and sanitation services for 1.5 million people.

A notable pattern among these companies is the strong concentration in water-related services, encompassing supply, distribution, sanitation, and hydraulic engineering. Many firms, such as Altereo and PROX-HYDRO, specialize in various aspects of water management, reflecting the regional importance of water resources and infrastructure. Headquarters are predominantly located in Marseille and Aix-en-Provence.

🇫🇷 Bouches-du-Rhône · 30 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Onet SA](https://www.tamtam.ai/c/onet-sa) (groupeonet.com)<br>A family service group with 74,000 employees in 8 countries, offering a wide range of services including cleaning, security, engineering, and maintenance | Business Consulting and Services | 🇫🇷 Marseille | 14,750 | 1860 |
| 2 | [Ortec Group](https://www.tamtam.ai/c/ortec-group) (ortec-group.com)<br>Provides multidisciplinary services for industry, energy, and environment, including maintenance, new works, environmental services, facilities management, logistics, and engineering consulting. | Environmental Services | 🇫🇷 Aix-en-Provence | 4,388 |  |
| 3 | [Métropole Aix-Marseille-Provence](https://www.tamtam.ai/c/metropole-aix-marseille-provence) (ampmetropole.fr)<br>Coordination of economic, social, cultural development, urban planning, housing, environmental protection, and public services across 92 communes. | Government Administration | 🇫🇷 Marseille | 2,385 | 2016 |
| 4 | [Onet Technologies](https://www.tamtam.ai/c/onet-technologies) (onet.fr)<br>Expertise in nuclear engineering and services for reactor maintenance, dismantling, decommissioning, waste management, and training within the nuclear industry lifecycle. | Industrial Machinery Manufacturing | 🇫🇷 Marseille | 2,071 |  |
| 5 | [Société du canal de provence](https://www.tamtam.ai/c/societe-du-canal-de-provence) (canaldeprovence.com)<br>The company designs, builds, and operates environmentally-friendly hydraulic systems for water supply in the Provence-Alpes-Côte d’Azur region, also offering engineering services internationally | Environmental Services | 🇫🇷 Aix-en-Provence | 546 | 1957 |
| 6 | [Société des Eaux de Marseille💧](https://www.tamtam.ai/c/societe-des-eaux-de-marseille) (eauxdemarseille.fr)<br>Manages water and sanitation services for 1.5 million people in Provence, including production, distribution, wastewater collection, treatment, and environmental preservation. | Environmental Services | 🇫🇷 Marseille | 396 | 1943 |
| 7 | [EHTP](https://www.tamtam.ai/c/ehtp) (nge.fr)<br>The company specializes in all techniques related to pipeline systems, including water collection and treatment, installation of water pipelines, and dry network infrastructure | Construction | 🇫🇷 Saint-Étienne-du-Grès | 371 |  |
| 8 | [Altereo](https://www.tamtam.ai/c/altereo) (altereo.fr)<br>An independent French company driving clients from ideas to behaviors, specializing in water engineering, public utility management, city sustainability, and geographic intelligence solutions | Environmental Services | 🇫🇷 Venelles | 229 | 1989 |
| 9 | [GEOCEAN](https://www.tamtam.ai/c/geocean) (geocean.com)<br>Marine works contractor specializing in subsea pipeline installation, coastal infrastructure, and difficult submarine projects, with expertise in site analysis and renewable energy. | Specialty Trade Contractors | 🇫🇷 Cassis | 218 | 1984 |
| 10 | [DSD](https://www.tamtam.ai/c/dsd-vitrolles) (dsd-global.fr)<br>French company specializing in demolition, decontamination, rehabilitation, asbestos removal, and industrial dismantling of structures and infrastructure | Construction | 🇫🇷 Vitrolles | 148 | 2006 |
| 11 | [Groupe La Varappe](https://www.tamtam.ai/c/groupe-la-varappe) (lavarappe.fr)<br>A leader in social inclusion, providing employment opportunities for marginalized individuals in various sectors like HR, environmental services, construction, and healthcare | Business Consulting and Services | 🇫🇷 Aubagne | 130 | 1992 |
| 12 | [DESAMIANTAGE FRANCE DEMOLITION (DFD)](https://www.tamtam.ai/c/desamiantage-france-demolition-dfd) (desamiantagefrancedemolition.fr)<br>Specializes in asbestos, lead, and pollution removal, demolition, deconstruction, and dismantling across France for various sectors including industrial, maritime, and nuclear. | Environmental Services | 🇫🇷 Gémenos | 117 | 2012 |
| 13 | [PROX-HYDRO](https://www.tamtam.ai/c/prox-hydro) (proxhydro.com)<br>Providing water distribution services for collective housing since 1953 to private and public clients, ensuring optimal service and efficiency | Environmental Services | 🇫🇷 Marseille | 102 | 1953 |
| 14 | [Régie des Eaux du Pays d'Aix](https://www.tamtam.ai/c/regie-des-eaux-du-pays-d-aix) (eauxdupaysdaix.fr)<br>An utilities company in Provence-Alpes-Côte d'Azur, France, focusing on water management and distribution in the Pays d'Aix region | Utilities | 🇫🇷 Aix-en-Provence | 102 |  |
| 15 | [Carrières et Bétons BRONZO PERASSO](https://www.tamtam.ai/c/carrieres-et-betons-bronzo-perasso) (bronzoperasso.fr)<br>A company with a strong identity in Marseille, specializing in quarrying, concrete production, precast products, and inert recycling services | Wholesale Building Materials | 🇫🇷 Marseille | 94 | 1994 |
| 16 | [EveRé](https://www.tamtam.ai/c/evere) (evere.fr)<br>EveRé is an industrial player specialized in waste valorization, operating a waste treatment facility in Fos-sur-Mer for public service in Aix-Marseille Provence | Environmental Services | 🇫🇷 Fos-sur-Mer | 93 | 2010 |
| 17 | [Communauté d'Agglomération Arles Crau Camargue Montagnette - ACCM](https://www.tamtam.ai/c/communaute-d-agglomeration-arles-crau-camargue-montagnette-accm) (agglo-accm.fr)<br>Management of shared competencies transferred by member municipalities, focusing on local governance, territorial development, and community services within defined areas. | Government Administration | 🇫🇷 Arles | 92 | 2004 |
| 18 | [CMSE - Carrières & Matériaux Sud-Est](https://www.tamtam.ai/c/cmse-carrieres-and-materiaux-sud-est)<br>A leading producer and recycler of construction materials in several regions, providing local, environmentally-conscious solutions for construction projects with a dedicated team | Wholesale Building Materials | 🇫🇷 Aix-en-Provence | 89 | 2021 |
| 19 | [Ortec Industrie Rognac - Ortec Group](https://www.tamtam.ai/c/ortec-industrie-rognac-ortec-group) (ortec-group.com)<br>Provides industrial and environmental maintenance services, including mechanics, metallurgy, piping, lifting, industrial cleaning, and production delegation for various sectors. | Oil and Gas | 🇫🇷 Rognac | 89 | 1992 |
| 20 | [ax'eau](https://www.tamtam.ai/c/ax-eau) (ax-eau.com)<br>Specializes in advanced leak detection services and solutions, leading the French market in identifying and managing water leaks efficiently. | Environmental Services | 🇫🇷 Châteaurenard | 87 | 2004 |
| 21 | [EOLIA GROUPE - Gestion de la qualité de l'air en secteur à risque](https://www.tamtam.ai/c/eolia-groupe-gestion-de-la-qualite-de-l-air-en-secteur-a-risque) (eoliagroupe.com)<br>EOLIA GROUPE provides sanitation services focused on risk management, with branches in three regions, emphasizing customer satisfaction, relationship, and human values | Environmental Services | 🇫🇷 La Ciotat | 63 | 2009 |
| 22 | [AtmoSud](https://www.tamtam.ai/c/atmosud) (atmosud.org)<br>AtmoSud is an independent observatory monitoring air quality in the Provence-Alpes-Côte d'Azur region, working with various stakeholders to promote environmental preservation | Environmental Services | 🇫🇷 Marseille | 60 | 2012 |
| 23 | [LVD ENVIRONNEMENT](https://www.tamtam.ai/c/lvd-environnement) (lvdenvironnement.fr)<br>Environmental services focused on ecological transition, including park maintenance, waste management, selective sorting, water cleaning, and meter installation. | Utilities | 🇫🇷 Aubagne | 57 |  |
| 24 | [HTS BIO Laboratories](https://www.tamtam.ai/c/hts-bio-laboratories) (htsbio.com)<br>A French company specializing in eco-friendly biotechnology solutions for hygiene, cleaning, water treatment, agriculture, and more, developed through exclusive microbiological processes | Biotechnology Research | 🇫🇷 Gémenos | 45 | 1988 |
| 25 | [Groupe MP](https://www.tamtam.ai/c/groupe-mp) (groupe-mp.fr)<br>Specializing in site and building decontamination solutions, this company offers expertise in transforming spaces to be environmentally-friendly and safe for use With a focus on the construction, real estate, industrial, and public sectors, they provide comprehensive services to support the entire lifecycle of buildings, equipment, and land | Environmental Services | 🇫🇷 Gémenos | 43 | 2012 |
| 26 | [DURANCE GRANULATS](https://www.tamtam.ai/c/durance-granulats) (durance-granulats.com)<br>Specializing in natural and recycled aggregates, our company focuses on welcoming and optimizing the reuse of construction site debris | Wholesale Building Materials | 🇫🇷 Peyrolles-en-Provence | 41 | 1978 |
| 27 | [La Compagnie des Forestiers](https://www.tamtam.ai/c/la-compagnie-des-forestiers) (lacompagniedesforestiers.com)<br>Specialized environmental conservation company working with nature to preserve and enhance natural habitats, waterways, coastlines, and degraded spaces for over 30 years | Specialty Trade Contractors | 🇫🇷 Lambesc | 38 | 1986 |
| 28 | [SMAVD](https://www.tamtam.ai/c/smavd) (smavd.org)<br>The Syndicate specializes in managing the Durance river by improving safety, protecting against floods, preserving natural heritage, and balancing different river uses | Government Administration | 🇫🇷 Mallemort | 38 | 1976 |
| 29 | [ATSI 3D](https://www.tamtam.ai/c/atsi-3d) (groupeatsi.com)<br>Specializing in project management, controls, and consulting for asbestos removal, demolition, and pollution remediation services | Construction | 🇫🇷 Vitrolles | 36 |  |
| 30 | [Nomado](https://www.tamtam.ai/c/nomado) (nomad-o.com)<br>Specializing in designing and building compact water treatment units in sea containers or skid-mounted for various water treatment needs | Water, Waste, Steam, and Air Conditioning Services | 🇫🇷 Marseille | 35 |  |

## 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 12, 2026.

## More company lists in the Bouches-du-Rhône department

- [The largest companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/largest-companies-bouches-du-rhone) (3,317)
- [Multinational companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/multinational-companies-bouches-du-rhone) (351)
- [Companies with in-house R&D in the Bouches-du-Rhône department](https://www.tamtam.ai/l/r-and-d-companies-bouches-du-rhone) (320)
- [Retail chains in the Bouches-du-Rhône department](https://www.tamtam.ai/l/retail-chains-bouches-du-rhone) (281)
- [Professional services firms in the Bouches-du-Rhône department](https://www.tamtam.ai/l/professional-services-firms-bouches-du-rhone) (249)
- [Manufacturers in the Bouches-du-Rhône department](https://www.tamtam.ai/l/manufacturers-bouches-du-rhone) (187)
- [Public sector organisations in the Bouches-du-Rhône department](https://www.tamtam.ai/l/public-sector-organisations-bouches-du-rhone) (183)
- [Distributors and wholesalers in the Bouches-du-Rhône department](https://www.tamtam.ai/l/distributors-and-wholesalers-bouches-du-rhone) (156)
- [IT services companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/it-services-companies-bouches-du-rhone) (155)
- [IT Services and IT Consulting companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-bouches-du-rhone) (154)
- [SaaS companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/saas-companies-bouches-du-rhone) (145)
- [Hardware manufacturers in the Bouches-du-Rhône department](https://www.tamtam.ai/l/hardware-companies-bouches-du-rhone) (142)
- [Family-owned companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/family-owned-companies-bouches-du-rhone) (142)
- [Consulting firms in the Bouches-du-Rhône department](https://www.tamtam.ai/l/consulting-firms-bouches-du-rhone) (129)
- [Software Development companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/software-development-companies-bouches-du-rhone) (120)
- [Education providers in the Bouches-du-Rhône department](https://www.tamtam.ai/l/education-companies-bouches-du-rhone) (119)
- [Business Consulting and Services companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/business-consulting-and-services-companies-bouches-du-rhone) (113)
- [Real Estate companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/real-estate-companies-bouches-du-rhone) (109)
- [Healthcare providers in the Bouches-du-Rhône department](https://www.tamtam.ai/l/healthcare-providers-bouches-du-rhone) (107)
- [Law Practice companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/law-practice-companies-bouches-du-rhone) (100)
- [Critical infrastructure operators in the Bouches-du-Rhône department](https://www.tamtam.ai/l/critical-infrastructure-operators-bouches-du-rhone) (98)
- [Accounting firms in the Bouches-du-Rhône department](https://www.tamtam.ai/l/accounting-firms-bouches-du-rhone) (93)
- [Accounting companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/accounting-companies-bouches-du-rhone) (92)
- [Construction companies in the Bouches-du-Rhône department](https://www.tamtam.ai/l/construction-companies-bouches-du-rhone) (91)

## The same list elsewhere in France

- [Environmental services companies in Île-de-France](https://www.tamtam.ai/l/environmental-services-companies-ile-de-france) (336)
- [Environmental services companies in Auvergne-Rhône-Alpes](https://www.tamtam.ai/l/environmental-services-companies-auvergne-rhone-alpes) (173)
- [Environmental services companies in Provence-Alpes-Côte d'Azur](https://www.tamtam.ai/l/environmental-services-companies-provence-alpes-cote-dazur) (108)
- [Environmental services companies in Grand Est](https://www.tamtam.ai/l/environmental-services-companies-grand-est) (100)
- [Environmental services companies in Nouvelle-Aquitaine](https://www.tamtam.ai/l/environmental-services-companies-nouvelle-aquitaine) (92)
- [Environmental services companies in Hauts-de-France](https://www.tamtam.ai/l/environmental-services-companies-hauts-de-france) (87)
- [Environmental services companies in Occitanie](https://www.tamtam.ai/l/environmental-services-companies-occitanie) (78)
- [Environmental services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/environmental-services-companies-hauts-de-seine) (70)
- [Environmental services companies in the Rhône department](https://www.tamtam.ai/l/environmental-services-companies-rhone) (64)
- [Environmental services companies in Pays de la Loire](https://www.tamtam.ai/l/environmental-services-companies-pays-de-la-loire) (59)
- [Environmental services companies in Brittany](https://www.tamtam.ai/l/environmental-services-companies-brittany) (48)
- [Environmental services companies in the Nord department](https://www.tamtam.ai/l/environmental-services-companies-nord) (47)
- [Environmental services companies in Normandy](https://www.tamtam.ai/l/environmental-services-companies-normandy) (45)
- [Environmental services companies in Bourgogne-Franche-Comté](https://www.tamtam.ai/l/environmental-services-companies-bourgogne-franche-comte) (38)
- [Environmental services companies in the Yvelines department](https://www.tamtam.ai/l/environmental-services-companies-yvelines) (35)
- [Environmental services companies in the Seine-Saint-Denis department](https://www.tamtam.ai/l/environmental-services-companies-seine-saint-denis) (34)
- [Environmental services companies in the Gironde department](https://www.tamtam.ai/l/environmental-services-companies-gironde) (32)
- [Environmental services companies in the Essonne department](https://www.tamtam.ai/l/environmental-services-companies-essonne) (27)
- [Environmental services companies in the Val-de-Marne department](https://www.tamtam.ai/l/environmental-services-companies-val-de-marne) (26)
- [Environmental services companies in the Isère department](https://www.tamtam.ai/l/environmental-services-companies-isere) (25)
- [Environmental services companies in Paris](https://www.tamtam.ai/l/environmental-services-companies-paris-france) (87)

## The same list elsewhere

- [Environmental services companies in the world](https://www.tamtam.ai/l/environmental-services-companies-in-the-world) (4,213)
- [Environmental services companies in Europe](https://www.tamtam.ai/l/environmental-services-companies-in-europe) (2,448)

---

Source: https://www.tamtam.ai/l/environmental-services-companies-bouches-du-rhone