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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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9'016 companies found

Sakti SA Logo

Sakti SA 

Sierre · Since 2023

Sakti SA provides comprehensive solutions for the transition to sustainable energy supply. The core activities include: * Installation of solar panels * Promotion of electric mobility * Provision of financing solutions for energy projects * Offering of specialized insurance solutions for energy projects The company acts as a single point of contact for customers seeking a comprehensive solution for their energy projects, from consulting to implementation, financing and securing.

Solar & Photovoltaics
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SALANFE S.A. Logo

SALANFE S.A. 

Vernayaz · Since 1947

The core activity of Auberge de Salanfe is the operation of a mountain inn with a restaurant, accommodation facilities and offers for hiking, conferences and seminars in the mountains.

Energy Suppliers
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Salbrec Schweiz AG Logo

Salbrec Schweiz AG 

Augst Bl · Since 2011

The core activity of Salbrec Schweiz AG is the planning, construction and operation of solar systems on long-term leased roofs, with the aim of making a contribution to sustainable and ecological energy production.

Construction & Project ManagementSolar & Photovoltaics
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SAM Débarras, Shefkiju Logo

SAM Débarras, Shefkiju 

Geneva · Since 2022

The company "Sam Débarras" provides services in the field of clearing and disposing of residential and commercial premises.

Waste Management Industry
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SANIA Power AG Logo

SANIA Power AG 

Zug · Since 2015

The core activity of SANIA Power AG is the trading of energy commodities, particularly electricity and natural gas, on European energy markets. The company offers optimization systems for energy trading and is expanding its activities in the areas of short-term trading and algorithmic trading.

Energy Suppliers
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Sanitär Peter Müller AG Logo

Sanitär Peter Müller AG 

Allschwil · Since 2014

The core activity of Sanitär Peter Müller AG encompasses the planning, installation, and maintenance of sanitary, heating, and alternative energy systems, including: Sanitary technology, Ventilation technology, Heating technology, Alternative energy systems, such as: Heat pumps, District heating transfer stations, Wood-fired systems, Rainwater harvesting systems, Heat recovery systems, Thermal solar systems. The company offers these services to private and business customers and provides consulting services for the selection and implementation of alternative energy sources.

Solar & Photovoltaics
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Sanitär und Heizungen Neuhaus GmbH Logo

Sanitär und Heizungen Neuhaus GmbH 

Heitenried · Since 2005

The core activity of Solartechnik Neuhaus GmbH is the planning, installation and maintenance of solar systems and related services in the field of renewable energies.

Solar & Photovoltaics
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Sanom AG Logo

Sanom AG 

Stans · Since 2022

The company Sanom AG offers procurement and consulting services, with a focus on environmentally friendly solutions.

Sustainability Sector
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Sansecura AG Logo

Sansecura AG 

Lucerne · Since 1998

The core activity of Sansecura AG is the development and implementation of solutions for protection against electromagnetic pollution and eavesdropping. The company offers services such as shielding against electromagnetic pollution, eavesdropping protection and radiation protection to protect both private individuals and companies and organizations from the negative effects of electromagnetic pollution and unauthorized access to confidential information.

Sustainability Sector
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Santenberg Energie Genossenschaft Logo

Santenberg Energie Genossenschaft 

Wauwil · Since 2012

The core activity of Santenberg Energie Genossenschaft is the promotion and use of renewable energies, in particular through the construction and operation of solar power systems.

Solar & Photovoltaics
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Santo Santokom Logo

Santo Santokom 

Homburg · Since 2016

The core activities of Santokom.ch are: 1. Composting: Acceptance and utilization of organic materials from the surrounding region. 2. Contract work: Manure removal, transportation and spreading. 3. Mechanical soil sampling: Conducting soil samples as a franchisee of Bodenproben.ch AG, particularly in Northeastern Switzerland.

Waste Management Industry
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sanu durabilitas - Schweizerische Stiftung für Nachhaltige Entwicklung Logo

sanu durabilitas - Schweizerische Stiftung für Nachhaltige Entwicklung 

Biel/Bienne · Since 1989

The core activity of Durabilitas is to promote sustainability and environmental protection by networking actors, implementing projects and developing strategies for a sustainable future. In particular, the company focuses on the topics of circular economy, healthy soils and Just Transition. Through dialogue, advocacy and the provision of instruments and information, Durabilitas aims to empower actors to act more sustainably and drive the implementation of sustainability goals.

Sustainability Sector
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Sarag Sandstrahlmittel Recycling AG Logo

Sarag Sandstrahlmittel Recycling AG 

Bern · Since 1996

The core activity of SARAG is the professional and legally compliant disposal of blasting waste, including the collection, utilization and recycling of blasting abrasives.

Waste Management Industry
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sarbau gmbh Logo

sarbau gmbh 

Glis · Since 2022

The company's core activity is the provision of construction and renovation services, particularly in the fields of civil engineering, new construction, renovation work, environmental work and roofing, including the installation of solar systems.

Solar & Photovoltaics
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SAR Recycling SA Logo

SAR Recycling SA 

Rancate · Since 2006

The core activity of SAR Recycling SA is the collection, processing and recycling of metal waste, particularly catalysts and other materials containing precious metals. The company offers various services, including fusion, incineration and laboratory analysis of materials, as well as additional services such as material cremation. The company's goal is to recover valuable metals from waste and contribute to sustainability and environmental protection.

Waste Management Industry
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Sat Solar Swiss AG Logo

Sat Solar Swiss AG 

Ermatingen · Since 2005

The company's core activity is the planning, design, installation, maintenance and monitoring of photovoltaic systems for various customers, including homeowners, commercial businesses and public institutions. The company also offers energy contracting, smart grids and self-consumption communities.

Solar & Photovoltaics
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Sat Solar International AG Logo

Sat Solar International AG 

Ermatingen · Since 2005

Sat Solar International AG is a distributor of photovoltaic components within the SAT Solar Group. The company supplies PV modules, inverters and related components for residential and commercial customers.

Solar & Photovoltaics
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Save NRJ Sàrl Logo

Save NRJ Sàrl 

Martigny · Since 2011

The core activity of Save NRJ is the optimization of energy efficiency in buildings. To this end, the company offers various services, including: Energy audits of buildings, Planning and consulting for new buildings and renovations, Certification of buildings according to Minergie and CECB standards, Application for subsidies for energy-efficient buildings, Conducting Blower-Door tests and thermographic inspections, Acoustic investigations and consulting, Consulting and planning for the installation of renewable energy systems. The company supports private individuals, companies, municipalities and institutions in optimizing their buildings and helps them reduce their energy costs and improve their environmental balance.

Technical Consulting & EngineeringSustainability Sector
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Savenergy Consulting GmbH Logo

Savenergy Consulting GmbH 

Zurich · Since 2012

The core activity of Savenergy Consulting GmbH is energy consulting and planning in the field of renewable energies, particularly in the following areas: Electric mobility (planning and implementation of charging stations), Solar planning (planning, quality assurance and commissioning of solar systems), Energy storage (planning and implementation of battery storage systems), Autonomous lighting (planning and implementation of solar-powered lights), Photovoltaics (potential analysis and planning of PV power plants), and Solar thermal energy (potential analysis and planning of solar thermal systems). The company also offers building ecology workshops, training sessions and energy consulting services.

Solar & Photovoltaics
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Save you GmbH Logo

Save you GmbH 

Ermatingen · Since 2014

The core activity of Saveyou GmbH is the development, manufacture and distribution of battery storage systems and photovoltaic systems, including associated components such as inverters and PV panels. The company also offers security solutions such as surveillance balloons, drone defense and vehicle barriers.

Solar & Photovoltaics
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SBF swiss biofuels AG Logo

SBF swiss biofuels AG 

Arbon · Since 2013

The core activity of SBF - swiss biofuels AG is the production and distribution of high-quality, winter-resistant biodiesel according to the EN 14214 standard. The company imports and produces biodiesel, which is suitable as an environmentally friendly and sustainable fuel for heavy-duty and long-distance traffic, as well as for other areas of application such as goods and transport traffic, public and commercial passenger transport, construction site traffic, agricultural traffic, forestry traffic, and shipping.

Sustainability Sector
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Scanlon Advisory Sàrl Logo

Scanlon Advisory Sàrl 

La Rippe · Since 2023

Sustainability Sector
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SCB Environmental Markets SA Logo

SCB Environmental Markets SA 

Nyon · Since 2007

The company Starcb (SCB) is a leading player in the field of sustainable energy and commodity markets. The core activities include: * Trading and consulting of sustainable energy carriers such as biodiesel, ethanol, methanol, and energy derivatives * Trading of commodities such as molybdenum and battery materials * Consulting and services in the field of climate protection, including carbon consulting and carbon neutralization * Trading of emission certificates and greenhouse gas reduction certificates * Market research and analysis in the field of sustainable energy and commodity markets The company positions itself as a leading provider of sustainable solutions for the energy and commodity industry and offers a wide range of services and products to support customers in reducing their environmental impact.

Sustainability Sector
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Schaufelberger René Consulting GmbH Logo

Schaufelberger René Consulting GmbH 

Uster · Since 2015

The core activity of Schaufelberger René Consulting GmbH is consulting, particularly data protection consulting.

Management ConsultingSustainability Sector
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schilter.tech GmbH Logo

schilter.tech GmbH 

Altendorf · Since 2022

The core activity of Schilter.tech GmbH is consulting, planning and implementing solutions for energy-efficient building envelopes, photovoltaic systems and climate-friendly building technology. The company supports building envelope manufacturers, architects and builders in implementing the Energy Strategy 2050.

Solar & Photovoltaics
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Schleiss Tisol Sagl Logo

Schleiss Tisol Sagl 

Castione · Since 2013

The core activity of Schleiss-Tisol is the planning, installation, maintenance and consulting of advanced energy systems, particularly in the field of renewable energies such as wood-fired heating systems, pellet heating systems, solar systems and rainwater harvesting. The company also offers the supply of pellets and other energy carriers, as well as the installation and maintenance of wastewater treatment plants and dosing systems.

Solar & Photovoltaics
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Schneider Daniel Sanitär Heizungen GmbH Logo

Schneider Daniel Sanitär Heizungen GmbH 

Diessbach B. Büren · Since 2014

Schneider Daniel Sanitär Heizungen GmbH is a trades company focused on the planning, installation and maintenance of heating and sanitary systems. Services listed on the website include consultation, bathroom renovations and repairs, boiler service, installation and renewal of heating systems (wood, pellet and heat pump options) and the installation and flushing of underfloor heating.

Plumbing & Building ServicesSheet Metal WorkSolar & Photovoltaics
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Schneider Kanalreinigung AG Logo

Schneider Kanalreinigung AG 

Meilen · Since 2015

The core activity of Schneider Kanalreinigung AG is the provision of services in the field of sewer cleaning, inspection and renovation, including drain clearance and suction of materials, as well as regular maintenance and upkeep of wastewater systems.

Waste Management Industry
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Schrebag AG Logo

Schrebag AG 

Oberdorf Nw · Since 1991

The core activity of Schrebag is the processing of construction materials, particularly the recycling of excavated materials and construction waste, such as concrete demolition and mixed demolition waste, in order to reintroduce these materials into the construction industry's cycle and thus conserve primary resources and reduce the volume of mineral waste disposal.

Waste Management Industry
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Schulz Kommunikation Logo

Schulz Kommunikation 

Bern · Since 1998

Schulz Kommunikation is engaged in sustainable development and communication, particularly in the areas of climate protection and decarbonization. The core activity consists of advising companies, foundations, and institutions on strategic issues of sustainable development, as well as developing and operating platforms for exchanging information on sustainable business practices and climate protection.

Sustainability Sector
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Schumacher AG sanitäre Anlagen, Wasserversorgungen Logo

Schumacher AG sanitäre Anlagen, Wasserversorgungen 

Wald Zh · Since 1991

The company primarily deals with the planning, installation, maintenance and repair of sanitary facilities and water supply systems. This includes, among other things, the renovation of bathrooms, the descaling of boilers, the installation of water softening systems and the maintenance of wells and pipes. The company also offers consulting and service services in these areas.

Plumbing & Building ServicesWater Supply
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Schwarz Bedachungen + Spenglerei Logo

Schwarz Bedachungen + Spenglerei 

Volketswil · Since 2005

The core activity of Schwarz Bedachungen + Spenglerei is the execution of roofing and sheet metal work, including repairs, new constructions and custom-made products. This includes in particular the repair of water damage and water ingress, the installation of roof drainage systems, as well as the processing of durable materials such as copper, zinc and stainless steel for roofs and facades.

RoofingSheet Metal WorkSolar & Photovoltaics
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Schwarzentruber Romoos GmbH Logo

Schwarzentruber Romoos GmbH 

Romoos · Since 2024

The company's core activity is sustainable weed and neophyte control using electroherbicide, a process in which weeds are selectively heated with electricity and destroyed down to the root tips.

Sustainability Sector
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Schweinezucht Doggen AG Logo

Schweinezucht Doggen AG 

Benken Sg · Since 1995

The core activity of Schweinezucht Doggen AG is the breeding of pigs, particularly the Swiss Edelschwein and Swiss Landrasse breeds, under ecological conditions and with a focus on animal welfare and high health status.

Sustainability Sector
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Schweizer Energie GmbH Logo

Schweizer Energie GmbH 

Rafz · Since 2017

The core activity of Schweizer-Energie AG is the planning, installation and marketing of renewable energy systems, in particular solar collectors and heat pumps.

Plumbing & Building ServicesSolar & Photovoltaics
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Schweizerische Stiftung für Vogelschutzgebiete (SSVG) Logo

Schweizerische Stiftung für Vogelschutzgebiete (SSVG) 

Zurich · Since 1974

The core activity of BirdLife Switzerland is the promotion and protection of biodiversity, particularly bird diversity, through various projects and activities such as species promotion, habitat conservation, environmental education and awareness. The company operates nature centers, advocates for sustainable agriculture and energy transition, and is involved in research and conservation of bird species and their habitats.

Sustainability Sector
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Schweizerische Verkehrs-Stiftung (SVS) Logo

Schweizerische Verkehrs-Stiftung (SVS) 

Bern · Since 1979

The company's core activity is the promotion of a human and environmentally friendly transportation system in Switzerland. This includes pursuing goals such as the efficient use of energy, minimizing environmental impacts, promoting modes of transport with optimal efficiency, and protecting nature and cultural assets from impairment by transportation. The foundation engages in activities such as fundraising, publishing recommendations, and hosting expert roundtables to achieve its goals.

Sustainability Sector
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Schweizer Naturstrom AG Logo

Schweizer Naturstrom AG 

Lucerne · Since 2006

The core activity of Schweizer Naturstrom AG is the planning, realization, operation and maintenance of plants that produce electricity from renewable energy sources such as sun, wind, biomass and hydropower. In particular, the company focuses on the financing, construction and operation of photovoltaic systems in Switzerland.

Energy SuppliersSolar & Photovoltaics
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Schweizer Stiftung Farbe Logo

Schweizer Stiftung Farbe 

Winterthur · Since 2012

The company offers a classification system for coating materials based on criteria such as environmental and health protection as well as usability. It provides a public product directory that lists products from manufacturers that meet the classification criteria. The company aims to provide orientation and selection assistance for coatings and guarantee the quality of the products. It works with various stakeholder groups and is overseen by an independent foundation.

Sustainability Sector
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Schweizer Verein für verantwortungsbewusste Kapitalanlagen Logo

Schweizer Verein für verantwortungsbewusste Kapitalanlagen 

Zurich · Since 2015

The company's core activity is to promote responsible capital investments by Swiss pension funds and social security institutions. The association advocates for sustainability and the protection of fundamental norms in capital investments and uses dialogue as a central instrument to bring about positive changes in the invested companies.

Sustainability Sector
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SC Technology GmbH Logo

SC Technology GmbH 

Hendschiken · Since 2002

The core activity of SC Technology GmbH is the drying of sewage sludge (Sludge Drying). The company is a global specialist in this field and has already installed over 45 plants in 10 countries.

Waste Management Industry
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SD Stenio Dozio SA Logo

SD Stenio Dozio SA 

Lugano · Since 2008

SD Stenio Dozio is a Swiss company specializing in the areas of energy efficiency, renewable energy and smart home solutions. The core activities include planning, installation and integration of photovoltaic systems, energy efficiency solutions and smart home systems for private and commercial customers. The company also offers consulting services for optimizing energy consumption and costs.

Solar & PhotovoltaicsElectrical Industry
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SEBASOL-Valais Logo

SEBASOL-Valais 

Fully · Since 2021

SEBASOL-Valais designs and assists in building solar thermal systems for domestic hot water (DHW) and heating, often combined with a hydraulic wood stove to cover remaining needs. It operates via volunteer-run regional centres that train self-builders, supplies materials at cost, provides courses and documentation, and cooperates with licensed installers for turnkey installations.

Solar & Photovoltaics
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Second Foundation Trading AG Logo

Second Foundation Trading AG 

Steinhausen · Since 2023

The core activity of Second Foundation Trading AG is the trading of energy products, particularly electricity, gas and renewable energies, in over 20 markets in Europe and worldwide.

Solar & Photovoltaics
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Second Nature Consulting Sàrl Logo

Second Nature Consulting Sàrl 

Chamoille (Sembrancher) · Since 2020

The company Second Nature offers consulting and coaching services to support companies and organizations in creating positive and regenerative changes. The core activities include: Consulting for companies and organizations to promote positive and regenerative changes, Coaching for individuals to support them in creating positive and regenerative changes, Campaign and communication support for companies and organizations to communicate their positive impact and build their community, Research projects and reporting to support companies and organizations in developing strategies for positive and regenerative changes, Design and development of initiatives and projects that promote positive and regenerative changes. The company focuses on supporting companies and organizations in creating positive and regenerative changes to have a positive impact on the environment and society.

Sustainability Sector
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seecon international gmbh Logo

seecon international gmbh 

Willisau · Since 1998

The core activity of seecon is the development of innovations for sustainable development, particularly through supporting customers in developing projects, products and services that have a positive impact. This also includes coaching, mentoring, training and organizing workshops, events and events. Another focus is on supporting water utilities in improving their performance and developing sustainable investment programs through Integrity Management.

Management ConsultingSustainability Sector
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see energie ag Logo

see energie ag 

Steinach · Since 2021

The core activity of see energie ag is the extraction of thermal energy from Lake Constance, whereby the lake water is sucked in by electric pumps, filtered through heat exchangers and then returned to the lake, removing around 3° Celsius in the process. This procedure serves as an alternative to conventional oil and gas heating systems and aims to contribute to reducing CO2 emissions.

Energy Suppliers
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Seeholzer Holzbau Logo

Seeholzer Holzbau 

Vordemwald · Since 2023

Seeholzer Holzbau is a carpentry and timber-construction company performing works such as roof structures, dormers, façades, balconies, carports, renovations, extensions, loft additions and agricultural buildings. Services also include insulation (floor, wall, roof), terrace decking, interior finishing (paneling, drywall), roofing and roof renovation, roof windows and installation of solar systems on various roof coverings.

Solar & Photovoltaics
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Seelandgas AG Logo

Seelandgas AG 

Lyss · Since 1983

The core activity of Seelandgas AG is the supply of gas to customers and the provision of related services, such as heat and process gas deliveries, power generation, energy consulting and service.

Energy Suppliers
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see-land.plan GmbH Logo

see-land.plan GmbH 

Biel/Bienne · Since 2021

The core activity of see-land.plan is the planning and development of lake shore and landscape projects, particularly in the areas of: * Lake shore protection * Hydraulic engineering * Revitalization * Nature and landscape conservation * Ecological landscape management * Landscape architecture and green space design. The company offers consulting and planning services for projects in these areas and has many years of experience in protecting natural and cultural landscapes.

Sustainability Sector
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Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

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Frequently asked questions

Searching the directory

How the search works, what each filter means, and how the results come together.

What can I search for in the directory?
The search field matches company names, industries and places. Beyond that you can filter by Industry (18 categories based on the NOGA classification), Size (number of employees), Region (canton, language region or postal code) and Special (keywords and entry date). Filters combine freely; the active ones appear as chips below the filter bar and can be removed there individually.
How do keywords work?
Keywords search the description and stated purpose of each company — the text that goes beyond the company name. Multiple keywords are combined with OR: every additional keyword widens the set of matches rather than narrowing it.
What belongs in the postal code field?
A single postal code (e.g. 8000) or a range (e.g. 1000-1010). The field accepts postal codes only — for place names, use Canton or Language region.
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How is organisation size determined?
Size reflects the number of employees and is calculated from publicly available information by a model developed in-house. It is a best-possible estimate, not an official figure.
What does the Verified label mean?
Verified means the entry is tied to a UID (Swiss business identification number) and therefore links back to the official Swiss business register. The label speaks to the company's identity — it is not a rating of its performance.

Source: Federal Statistical Office, UID register

How do I sort the results?
Use the dropdown above the list: Relevance, Name (A–Z), Best rating, Most reviews or Longest established. You can also switch between list and map view and set how many results appear per page.