This selection of companies in Nouvelle-Aquitaine primarily features public administration entities and firms involved in environmental services and construction. Large intercommunal organizations like Bordeaux Métropole (2836 employees) and Grand Poitiers Communauté Urbaine (527 employees) manage urban development and public services. Construction group Groupe Cassous (1247 employees) and civil engineering specialist BDS - Bordeaux Demolition Services (436 employees) are also represented.
A notable characteristic of this list is the prominence of public sector bodies established between the late 1960s and the 2010s. Many were founded or reorganized in 2017, such as Grand Poitiers Communauté Urbaine and Communauté Pays Basque, indicating a trend towards regional administrative consolidation.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Bordeaux Métropolebordeaux-metropole.fr
Intercommunal organization managing Bordeaux city and surrounding suburbs, coordinating urban development, services, and regional cooperation. |
2,836 | |||
| 2 |
Grand Poitiers Communauté Urbainegrandpoitiers.fr
A community urban organization with decentralized public services across 40 member municipalities, promoting proximity and citizen engagement while providing news and job opportunities |
527 | |||
| 3 |
BDS - Bordeaux Demolition Servicesbds-groupe.com
Specializes in deconstruction, industrial dismantling, asbestos removal, and depollution with qualified staff and regularly updated equipment in Nouvelle-Aquitaine. |
436 | |||
| 4 |
Communauté Pays Basquecommunaute-paysbasque.fr
Public institution uniting 158 Basque communes through the merger of 10 local communities to coordinate regional development and services. |
392 | |||
| 5 |
Limoges Métropolelimoges-metropole.fr
Management of public services, execution of major projects, economic service development, and environmental quality maintenance for regional population. |
385 | |||
| 6 | 374 | ||||
| 7 |
Régie de l'Eau Bordeaux Métropoleleaubordeauxmetropole.fr
Management of public water services with financial autonomy and legal personality to ensure sustainable and controlled water supply for Bordeaux Métropole. |
345 | |||
| 8 |
La Rochelle Aggloagglo-larochelle.fr
Provides a dynamic ecosystem focused on ecological transitions, supporting sustainable and innovative business creation for economic growth. |
304 | |||
| 9 |
Communauté d'Agglomération du Niortaisniortagglo.fr
Intercommunal structure managing 40 communes across 821 km² in southwestern France, focusing on urban and regional development around Niort. |
295 | |||
| 10 |
Agglomération d'Agenagglo-agen.net
Public entity managing cooperation among 44 communes, serving a population of 100,000 inhabitants in regional development and services. |
261 | |||
| 11 | 225 | ||||
| 12 |
GrandAngoulêmegrandangouleme.fr
Regional authority managing urban development, public services, and economic growth for multiple municipalities within the Angoulême area. |
216 | |||
| 13 | 204 | ||||
| 14 |
SOBEGIsobegi.com
Industrial service provider managing utilities, safety (training/interventions), and laboratory analysis Specializing in industrial platforms management in SEVESO zone, affiliated with Total Group |
201 | |||
| 15 | 190 | ||||
| 16 |
MACS, communauté de communescc-macs.org
Public intercommunal entity uniting 23 communes, fostering sustainable development, social solidarity, environmental respect, and technological advancement for residents. |
187 | |||
| 17 |
AVENIR DECONSTRUCTIONavenirdeconstruction.com
National demolition, asbestos removal, depollution of industrial buildings and social housing; expert engineering ensures adapted technical solutions according to site constraints. |
176 | |||
| 18 |
Eaux de Vienne-Siveereauxdevienne.fr
A public water management organization in France, specializing in water supply, sanitation, and fire protection services, focusing on innovation, transparency, and community engagement |
174 | |||
| 19 |
MONT DE MARSAN AGGLOMERATIONmontdemarsan.fr
Mont de Marsan Agglo is an intermunicipal organization focused on sustainable development and cooperation among 18 member communes for the benefit of their 54,172 residents |
165 | |||
| 20 |
QUALYSEqualyse.fr
A reliable and impartial laboratory providing innovative solutions for the safety of consumers, businesses, and local communities, with a focus on environmental health and well-being |
148 | |||
| 21 | 138 | ||||
| 22 |
ETCHARTgroupe-etchart.fr
Family-owned company with expertise in construction, energy, public works, materials distribution, manufacturing, and community services across southwestern France. |
133 | |||
| 23 |
Smicvalsmicval.fr
The company focuses on waste collection and management, promoting recycling and a "Zero Waste" approach, while also working on circular economy development |
119 | |||
| 24 |
Groupe SACPAgroupe-sacpa.fr
Support local authorities with animal control, including stray animals, dangerous dogs, urban cat populations, and pigeon population management solutions. |
118 | |||
| 25 |
AQUABIOaquabio-conseil.com
AQUABIO is an independent study office specializing in production, valorization, and expertise of hydrobiological data Operating as a Cooperative, with locations in six sites |
106 | |||
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| 26 |
Communauté de Communes de Montesquieucc-montesquieu.fr
An intercommunal entity grouping 13 communes near Bordeaux, focusing on public service improvement and territorial development, managing infrastructure, and supporting 2,800 companies |
103 | |||
| 27 | 102 | ||||
| 28 |
Communauté d'agglomération Royan Atlantiqueagglo-royan.fr
Management of water, waste, transport, economic development, urban planning, housing balance, and community social policies across 33 municipalities. |
93 | |||
| 29 |
NCA environnementnca.fr
Engineering consultancy firm specializing in water, renewable energy, biodiversity, and agriculture, providing eco-designed solutions balancing environment, regulations, and client needs. |
83 | |||
| 30 |
Groupe Pénapena.fr
Family-owned industrial group specializing in recycling and treating over 1,700 tons of industrial and household waste daily with high recovery rates. |
82 | |||
| 31 |
GROUPE DANIELgroupe-daniel.fr
Independent family business specializing in extraction and crushing of alluvial and limestone materials, ready-mix concrete production, prefabrication, recycling, and transport services. |
79 | |||
| 32 |
COMERSOcomerso.fr
Comerso helps businesses turn unsold goods into social, environmental, and economic opportunities through anti-waste solutions, serving companies in France and Spain |
68 | |||
| 33 |
Haute-Corrèze Communautéhautecorreze.fr
administration and coordination of 70 communes, serving over 33,000 residents, through merged community federations and intercommunal syndicates |
67 | |||
| 34 |
DEJANTE Infradejante-infra.com
We offer a range of specialized services in consulting and engineering, with expertise in water, environment, energy, VRD, and construction projects |
62 | |||
| 35 |
VITALE ASSISTANCEresilians.fr
Specialized teams manage water damage, fire, vandalism, asbestos treatment, and building repairs with nationwide agency support and major risk handling. |
61 | |||
| 36 | 58 | ||||
| 37 |
Plastic Odysseyplasticodyssey.org
Developing low-tech, open-source recycling solutions via a mobile laboratory vessel to empower local communities against plastic pollution. |
51 | |||
| 38 | 51 | ||||
| 39 |
Groupe ROUVREAUgroupe-rouvreau.com
An utilities company based in Niort, France specializing in recycling services and waste management solutions |
46 | |||
| 40 |
Communauté de Communes des Grands Lacsccgrandslacs.fr
A community of 7 municipalities in France, including Biscarrosse and Sanguinet, working together to enhance the quality of life for residents |
44 | |||
| 41 |
Groupe Durruty
An independent family-owned group with over 50 years of experience in various industries, including construction, quarrying, material trading, waste recycling, and equipment rental |
43 | |||
| 42 |
SYNDICAT MIXTE DEPARTEMENTAL D'EQUIPEMENT DES COMMUNES DES LANDESsydec40.fr
Provides equipment and infrastructure services to local communes in Landes, supporting public works and community development projects. |
41 | |||
| 43 |
Communauté d'Agglomération Bergeracoisela-cab.fr
Coordination and management of local municipalities through intercommunal cooperation, merging communities, and governance under territorial code regulations. |
39 | |||
| 44 |
L'ELECTROLYSElelectrolyse.fr
Industrial company specializing in surface treatment, coating, non-destructive testing, mineral analysis, and industrial waste management across multiple sectors. |
36 | |||
| 45 |
EUROPLASMA SAeuroplasma.com
Development of patented plasma torch technology for treating hazardous solid waste and toxic gases, reducing greenhouse emissions and recycling complex waste. |
36 | |||
| 46 |
Syndicat Mixte Cycladcyclad.org
Public service for waste collection, processing, and valorization for over 233,481 residents in Charente-Maritime Leading initiatives on waste reduction and circular economy innovation |
34 | |||
| 47 |
SIBA Bassin d'Arcachonsiba-bassin-arcachon.fr
The company is a collective effort by local municipalities to protect the Bassin d'Arcachon, focusing on water quality with a team of over 72 professionals |
34 | |||
| 48 |
HYDRO EUROPE SERVICEhydroeuropeservice.fr
A specialist in water treatment, offering services such as sewage treatment, pumping stations, potable water, and industrial water recycling Committed to quality, safety, and environmental responsibility |
30 | |||
| 49 |
Communauté de Communes ELANelan87.fr
The company provides support for entrepreneurs in the territory, helping with business creation, takeover, and development through financing, networking, and advice |
30 | |||
| 50 |
ASSISTEAUXassisteaux.com
A specialized company in water treatment equipment and maintenance, serving individuals, industries, and public entities, now a national leader in non-collective sanitation equipment maintenance |
29 | |||
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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 14, 2026.
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The same list elsewhere in France
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