Cluster TWEED

Sertius

Sertius is a consulting company that is able to evaluate environmental and safety issues within a regional, national and international context and to help clients to act locally following the solutions found.

Chemin du Cyclotron 6, 1348 Ottignies-Louvain-la-Neuve, Belgique

Last updated: 29/01/2024

SFPIM

SFPIM is intent on being a reliable partner for Belgian companies, both SMEs and scale-ups, helping them grow into a reference in their sector by providing “smart capital solutions”.

Av. Louise 32, 1050 Bruxelles, Belgique

Last updated: 10/12/2025

SGI Luxembourg

SGI is a multidisciplinary engineering group with companies in Luxembourg and abroad. Our teams are specialized in the design and management of structures in the fields of Building, Transport and Water.

2 ZA Um Lënster Bierg, 6125 Junglinster, Luxembourg

Last updated: 15/12/2025

Sibelga

Manager of the gas and electricity networks in Brussels.

Quai des Usines 16, 1000 Bruxelles, Belgique

Last updated: 12/11/2025

Siemens Energy

Siemens Energy is one of the world’s leading energy technology companies. The company works with its customers and partners on energy systems for the future, thus supporting the transition to a more sustainable world.

Guido Gezellestraat 125, 1654 Beersel, Belgique

Last updated: 20/03/2025

Skysun

Skysun funds the solar installations of companies (CAPEX) and provides long-term management (OPEX). Each partner organization has access to solar energy without having to bear the cost of investing or maintenance.

Rue de la Forge 10, 1470 Genappe, Belgique

Last updated: 23/04/2025

Socofe

Together, we imagine and invest in environmental transition solutions for the future of Wallonia.

Last updated: 10/01/2025

Solenco Power

Solenco Power NV is a Belgian SME company active in the R&D, design, manufacturing and distribution of (amongst others) hydrogen based products and services.

Slachthuisstraat 2, 2300 Turnhout, Belgique

Last updated: 24/04/2025

Soliseco

Metop Engineering offers a solution that optimizes solar self-consumption and lowers environmental impact. By using surplus solar power to heat water, the company reduces CO₂ emissions, decreases reliance on fossil fuels, and helps stabilize the power grid.

Clos du Diable Vert 26, 1390 Grez-Doiceau, Belgique

Last updated: 20/03/2026

Sotrad Water

Sotrad Water was set up to develop, manufacture, market and install water treatment plants capable of producing between 1m³ and 200m³ of water per hour from surface water.

Rue de l'Artisanat 5a, 1400 Nivelles, Belgique

Last updated: 05/08/2024

Sowalwatt

Sowalwatt is a business unit within the Pardis Group that aims to integrate complete energy systems, that is to say integrating the dimensions of electricity generation, storage and resale, at the sites owned by the group.

Chaussée de Tirlemont 75, 5030 Gembloux, Belgique

Last updated: 10/01/2025

Spa Monopole

Spa Monopole, founded in 1921 in Spa, is the subsidiary that created the Spadel Group, a Belgian group that produces and markets natural mineral waters, spring waters and natural mineral water-based soft drinks.

Rue Auguste Laporte 34, 4900 Spa, Belgique

Last updated: 23/03/2026

SPAQuE

An operator specialising in the remediation of polluted land. By cleaning up polluted industrial wastelands and landfill sites, developing renewable energy projects and participating in redevelopment projects for rehabilitated sites, SPAQUE is positioning itself as a key player in the economic and sustainable development of Wallonia.

Av. Maurice Destenay 13, 4000 Liège, Belgique

Last updated: 25/03/2026

SPARX Industries

Design, manufacture and assembly of all types of piping and boilerwork, including installation and maintenance. Management of all types of fluids in all materials.

Zoning Industriel 2ème 20, 6040 Charleroi, Belgique

Last updated: 08/10/2025

SPHERE avocats SRL​

After more than 15 years of working with international firms, the founders of SPHERE wanted to offer their clients a specialized, independent, flexible and responsive firm.

Chau. de la Hulpe 185, 1170 Watermael-Boitsfort, Belgique

Last updated: 05/02/2026

Storm Management

Storm is accelerating the transition to a climate-neutral society. We are doing this by developing, building and operating onshore wind farms at the lowest possible social cost. We have over fifty wind turbines, either already in operation or being built, enough to meet the annual electricity consumption of around 120,000 families.

Borsbeeksebrug 22, 2600 Antwerpen, Belgique

Last updated: 20/08/2024

STX Commodities

STX is a leading global Environmental Commodity Trader, and a Climate Solutions provider for corporations.

Vijzelstraat 79, 1017 HG Amsterdam, Pays-Bas

Last updated: 12/12/2025

SunBuild

Specialized in the engineering, construction, and commissioning of large-scale photovoltaic plant — whether it is ground-mounted, rooftop, or carport installations — we deliver integrated, tailor-made solutions designed to meet the needs of businesses, municipalities, farmers and industries in Belgium, France, and Luxembourg.

Sint Michielswarande 30, 1040 Etterbeek, Belgique

Last updated: 23/04/2025

Sunsoak Design and Architecture

Sunsoak Design and Architecture is an engineering and architecture practice focused on architectural solar.

Last updated: 23/04/2025

SWITCH Tihange

SWITCH's mission: to define and implement an economic redeployment plan for the Huy-Waremme district.

Last updated: 16/06/2025

SWL

The Walloon Housing Corporation (SWL) oversees, on behalf of the Walloon Government, the supervision, advice, and technical, financial, and administrative support for public housing companies.

Rue de l'Ecluse 21, 6000 Charleroi, Belgique

Last updated: 17/06/2025

Technifutur

Competence centre specialised in three areas (industry, digital and mobility) accompanying through advice, training and STEM awareness, company staff, students and teachers and job seekers in the acquisition of skills in response to needs.

Rue du Bois Saint-Jean 15/17, 4102 Seraing, Belgique

Last updated: 02/04/2026

THEMA

Thema, a multi-brand importer, specializes in the design of innovative solutions for the production of heat, cold and domestic hot water, suitable for multi-residential, commercial, tertiary or industrial projects.

Rue de la Chaudronnerie 2, 4340 Awans, Belgique

Last updated: 23/04/2025

Thermia

Thermia travaille en étroite collaboration avec le milieu professionnel sur l'amélioration énergétique des installations thermiques et conçoit de tableaux électriques de haute qualité permettant de piloter efficacement des systèmes de chauffage, de ventillation et de climatisation.

Rue de Condé 72, 7900 Leuze-en-Hainaut, Belgique

Last updated: 23/04/2025

Thomas et Piron Batiment

Active depuis plus de 42 ans dans le secteur, la société Thomas & Piron est aujourd’hui leader de son secteur avec + de 1400 logements construits ou rénovés chaque année en Belgique et au Grand-Duché de Luxembourg.

Rue du Fort d'Andoy 5, 5100 Namur, Belgique

Last updated: 04/08/2025