The energy sector in Bas-Rhin is characterized by a mix of established industrial groups and younger companies focused on renewable energy and energy efficiency. Socomec Group, founded in 1922, specializes in electrical network management, while ÉS, established in 1899, focuses on regional energy production and distribution from local renewable sources. Hager France manufactures electrical distribution and EV charging infrastructure.
Notable companies include Groupe SIAT, which processes wood into timber and generates electricity from biomass, and DE DIETRICH THERMIQUE, providing thermal comfort solutions since 1684. Newer firms like Chargemap and Freshmile offer IT services for electric vehicle charging, and Melia, founded in 2023, produces wood pellets for heating. The region shows a strong emphasis on sustainable energy solutions and the development of related infrastructure.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Socomec Groupsocomec.com
Established in 1922, this independent industrial group specializes in ensuring the availability, control, and safety of low voltage electrical networks worldwide, generating a turnover of 725 M€ in 2022 |
3,166 | |||
| 2 | 545 | ||||
| 3 |
Hager Francehager.com
Specializing in energy distribution and electric vehicle infrastructure management, providing tailored advice and services to meet clients' needs and requirements |
337 | |||
| 4 |
Groupe SIATgroupesiat.fr
Industrial company processing wood into timber, moldings, and pellets, also generating electricity from biomass. Focuses on sustainable wood and energy activities. |
237 | |||
| 5 | 175 | ||||
| 6 |
Strasbourg Électricité Réseauxstrasbourg-electricite-reseaux.fr
Distribution network manager operating fifteen thousand kilometers of power lines across four hundred municipalities, ensuring grid maintenance and development for regional clients. |
150 | |||
| 7 |
Réseau GDS - Gaz de Strasbourgr-gds.fr
Management of natural gas distribution network serving over 110,000 customers across Strasbourg and Bas-Rhin, focusing on energy transition. |
145 | |||
| 8 |
Meliamelia.green
production of reliable, ecological wood pellets from hedgerow wood for heating, promoting energy independence and carbon footprint reduction |
133 | |||
| 9 |
DE DIETRICH THERMIQUEdedietrich-thermique.fr
Providing high-performance, energy-efficient thermal comfort solutions with low environmental impact and elegant design, leveraging long-standing expertise and innovation. |
117 | |||
| 10 | 116 | ||||
| 11 |
Chargemapchargemap.com
Provides an app and pass for electric vehicle charging, connecting users with charging points and offering business solutions for fleet management. |
105 | |||
| 12 |
Freshmilefreshmile.com
Electric vehicle charging operator providing a mobility solution through a platform for easy and enjoyable charging, with access to 165,000+ charging points in Europe |
83 | |||
| 13 |
VOLTEC SOLARvoltec-solar.com
Production of high-quality French photovoltaic panels using circular manufacturing methods, supporting renewable energy adoption by companies and local authorities. |
72 | |||
| 14 |
Lithium de Francelithiumdefrance.com
Provides geothermal heat for businesses, farms, and local communities, and produces geothermal lithium for battery manufacturing in France. |
58 | |||
| 15 | 54 | ||||
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| 16 |
EcoGreenEnergyecogreenenergy.fr
Energy efficiency consulting and renewable energy installations provider since 2008, helping industrial companies reduce carbon footprint and improve competitiveness internationally |
53 | |||
| 17 |
Actemium Strasbourg Process & Energieactemium.fr
Specializing in designing and building innovative and efficient installations in air treatment, steam, cold, utilities, and industrial processes for over 25 years |
31 | |||
| 18 |
TRYBA ENERGYtryba-energy.com
Development and investment in solar power projects across Europe and Africa, including site identification, permitting, financing, construction, and operation. |
31 | |||
| 19 |
IHE Énergiesihe-energies.fr
Provide economical and ecological heating and energy solutions including heat pumps, thermodynamic water heaters, photovoltaic panels, and reversible air conditioners. |
31 | |||
| 20 |
Fröling Francefroeling.com
Specializing in efficient wood energy, the company pioneers state-of-the-art biomass heating systems in Europe, manufacturing firewood, wood chip, and pellet boilers |
30 | |||
| 21 |
PowerParkpowerpark.fr
Design and installation of photovoltaic carports with integrated electric vehicle charging stations for businesses to produce green energy and add value. |
27 | |||
| 22 |
ENERGY CONCEPTenergy-concept-pro.fr
Renewable energy company based in Alsace, France, specializing in environmental solutions for a sustainable future Located at 1 rue du Marais, Betschdorf |
16 | |||
| 23 |
EIFHYTECeifhytec.com
A European industrial company specializing in hydrogen technology for renewable energy storage, industry decarbonization, and sustainable mobility solutions |
14 | |||
| 24 |
Braksonbrakson.com
Helping society transition to more environmentally friendly energies and modes of transport |
14 | |||
| 25 |
VIRIDIAN LITHIUMviridianlithium.com
Industrial company building Europe's first lithium refining and conversion plant in Strasbourg to deliver battery-grade chemicals for the electric mobility supply chain. |
12 | |||
| 26 |
Hestiomhestiom.com
Specializing in energy transition and efficiency, the group offers high-quality equipment and professional services in renewable energies and solar carport installations with vehicle charging |
8 | |||
| 27 |
electric Oasiselectric-oasis.eu
French innovative startup providing businesses with easy-to-install industrialized electric vehicle charging services for outdoor parking areas without the need for civil engineering |
8 | |||
| 28 |
JS HORIZONSjs-horizons.fr
Specializing in photovoltaic solutions, we help clients transition to sustainable energy, offering tailored renewable energy solutions from design to installation |
7 | |||
| 29 | 5 | ||||
| 30 |
KWB Francekwb.net
Specializing in environmentally-friendly energy solutions, this company offers a range of wood boilers, solar thermal systems, and heating technologies, with a focus on quality service |
5 | |||
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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.
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