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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

Regio Pilz GmbH Logo

Regio Pilz GmbH 

Oberrieden · Since 2021

The core activity of Regio Pilz is the production and distribution of fresh and dried mushrooms, particularly edible mushrooms such as Shiitake, as well as the manufacture of mushroom products like seasoning powder. In doing so, the company relies on a regional and sustainable circular economy, using regional forest waste for mushroom production and reintroducing the nutrients into the regional ecosystem afterwards.

Sustainability Sector
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Regio Recycling Müllheim AG Logo

Regio Recycling Müllheim AG 

Müllheim Dorf · Since 1991

Regio Recycling Müllheim AG processes street sweepings, road-collector sludges and residues from mobile road-sludge treatment, using a developed washing process to separate mineral and organic fractions into recyclable products. Mineral fractions are used in civil-engineering applications or regional concrete production, organic fractions are refined for compost and soil-structure materials, pollutants are thermally recovered and wastewater is sent to the local treatment plant.

Waste Management Industry
View profile4.5(2)
Regio Recycling Goldach AG Logo

Regio Recycling Goldach AG 

Goldach · Since 1994

Regio Recycling Goldach AG operates two waste‑treatment facilities, providing wet‑mechanical full‑recovery processing for street‑maintenance residues and a chemical‑physical treatment plant (CPA) for liquid special wastes. The company also offers an IBC container service with delivery, collection and documentation for regulated disposal. Accepted waste streams include street sweepings and collector sludges, oil‑containing wastes and various industrial process wastewaters.

Waste Management Industry
View profile4.5(2)
Relesa AG Logo

Relesa AG 

Allschwil · Since 1983

The core activity of Relesa AG is the planning, installation, renovation and maintenance of heating, air conditioning and solar systems, as well as the provision of services in the field of building technology. This includes in particular: Heating: installation, renovation and maintenance of oil heating systems, gas heating systems and heat pumps; Air conditioning: installation, renovation and maintenance of air conditioning systems; Solar: installation, renovation and maintenance of solar thermal systems and photovoltaic systems; Service: 24/7 service for all concerns in the field of building technology, including impulse consultations for the canton of Basel-Landschaft.

Solar & Photovoltaics
View profile5(2)
Re-Line Kanalservice GmbH Logo

Re-Line Kanalservice GmbH 

Starrkirch-Wil · Since 2023

The core activity of Re-Line is the provision of services in the field of sewerage, particularly in sewer inspection, sewer cleaning and sewer renovation. The company offers effective and flexible solutions for the repair of stormwater and wastewater pipes without requiring demolition, reconstruction or evacuation.

Waste Management Industry
View profile5(2)
RESPECT Sàrl Logo

RESPECT Sàrl 

St-Livres · Since 2008

RESPECT Sàrl is a renewable energy company that designs and installs photovoltaic systems, heat pumps, battery storage and electric vehicle charging stations. It serves private clients, SMEs and public bodies and works with European products; it is a Swissolar‑approved photovoltaic installer.

Solar & Photovoltaics
View profile5(2)
RevoRepair Logo

RevoRepair 

Lausanne · Since 2024

The core activity of RevoRepair is to promote sustainability in the electronics industry through the repair and reuse of electronic devices. The company offers services such as organizing repair workshops, providing resources and tools for repairing electronic devices, and promoting sustainable consumption habits. RevoRepair also collaborates with partners to promote sustainability in the electronics industry and provides a platform for the community to exchange and network on sustainable practices.

Sustainability Sector
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Data Office AG Logo

Data Office AG 

Volketswil · Since 2020

The core activity of Rhenus Data Office Switzerland is the secure disposal and destruction of sensitive company and personal data, including: document shredding (secure disposal of paper documents), data carrier destruction (secure disposal of digital storage media such as USB sticks, chip cards, CDs, etc.), hard drive destruction (secure disposal of hard drives), and IT remarketing (disposal and recycling of decommissioned IT equipment). The company offers mobile and stationary destruction services, with a particular focus on data protection and data security.

Waste Management Industry
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Rhy Biogas AG Logo

Rhy Biogas AG 

Widnau · Since 2007

The core activity of Rhy Biogas AG is the production and trade of biogas.

Energy SuppliersWaste Management Industry
View profile3.5(2)
Rohrer + Co AG Logo

Rohrer + Co AG 

Sarnen · Since 2015

The core activity of Rohrer + Co AG is the cooperative association of experienced sanitary and installation specialists, indicating that the company specializes in the planning, installation and maintenance of sanitary facilities and other building technology systems.

Solar & Photovoltaics
View profile4.5(2)
Romisa S. Authouart Logo

Romisa S. Authouart 

Vallorbe · Since 2006

The core activity of Romisa is the provision of water treatment and purification services, specifically: * Water softening through adoucisseurs (removal of excess lime) * Ebouage of heating systems (cleaning of heating systems from deposits) * Détartrage (removal of lime deposits) of boilers, pipes and installations using chemical or mechanical methods * Maintenance and upkeep of adoucisseurs, dosing stations and heating systems.

Waste Management Industry
View profile5(2)
RS Solar Storen AG Logo

RS Solar Storen AG 

Basel · Since 1988

The core activity of Solar Storen AG is the manufacture, sale and repair of sun protection systems, in particular: sun awnings, canopies, louvre shutters, roller shutters and folding shutters. The company also offers a repair service for these products.

Solar & Photovoltaics
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RW Recycling World GmbH Logo

RW Recycling World GmbH 

Merishausen · Since 2002

The core activity of RW Recycling World GmbH is the development, manufacture and distribution of recycling plants and separators for various materials such as plastics, metals, glass and other composite materials. The company offers individual solutions for the mechanical and dry separation of mixtures and composite materials and manufactures plants for the recycling industry that include a variety of functions such as crushing, screening, separating, pelletizing, sieving and separating.

Waste Management Industry
View profile3(2)
Rytec AG Logo

Rytec AG 

Münsingen · Since 2006

The core activity of Rytec AG encompasses the development of solutions and services in the fields of waste management, circular economy, energy systems, and electricity market. Specifically, this includes: Waste management: consulting and development of solutions for waste disposal, utilization, and collection; Circular economy: development of business models and solutions for the circular economy; Energy systems: planning, development, and optimization of energy systems, including the use of renewable energies; Electricity market: consulting and services in the field of the electricity market, including procurement and marketing of electricity. The company also offers additional services such as analysis, training, consulting, modeling, and technical planning.

Technical Consulting & EngineeringSustainability SectorWaste Management Industry
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SASHAY GmbH Logo

SASHAY GmbH 

Thalwil · Since 2023

The core activity of SASHAY is the production and sale of sustainable, vegan shoes made from apple leather, a material produced from the residues of apple juice production.

Sustainability Sector
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schaer energie ag Logo

schaer energie ag 

Trogen · Since 2011

The core activity of Schaer Energie AG is the planning, installation and maintenance of photovoltaic systems for homeowners in Eastern Switzerland, with the goal of enabling affordable and environmentally friendly energy supply.

Solar & Photovoltaics
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Schläpfer Tankrevisionen Logo

Schläpfer Tankrevisionen 

Niederdorf · Since 2002

The core activity of Schläpfer Tankrevisionen is the provision of services related to tank facilities, in particular: tank facility revisions in accordance with cantonal regulations, decommissioning and dismantling of tank facilities, disposal of used oil, lubricating oil, diesel and other liquid lubricants, and the installation of plastic tank facilities. The company primarily offers these services in the cantons of Basel-Stadt, Basel-Land, Solothurn and Aargau.

Waste Management Industry
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Servicepool AG Zentralschweiz Logo

Servicepool AG Zentralschweiz 

Rothenburg · Since 2009

The core activity of Servicepool AG is the maintenance and servicing of alternative heating systems, particularly heat pumps, pellet heating systems, thermal solar systems and air conditioning systems. The company offers flexible service solutions to increase the lifespan and efficiency of these systems and minimize the risk of failure.

Solar & Photovoltaics
View profile4(2)
Sionic SA Logo

Sionic SA 

Sion · Since 1966

The core activity of Sionic SA encompasses the development, conception, implementation, and maintenance of solutions in the fields of security, communication, and energy. Specifically, the company offers the following services: * Security solutions: Emergency and security lighting, Evacuation sonorization, Intercom systems * Communication solutions: Intercom systems, Sonorization * Energy solutions: Photovoltaics, Solar photovoltaic installations * Maintenance and service: High-level technical maintenance for the above-mentioned solutions The company positions itself as an innovative partner for its customers, offering tailored solutions to meet their security, communication, and energy needs.

Electrical Planning & InstallationSolar & Photovoltaics
View profile3(2)
smart Y Energy Solutions GmbH Logo

smart Y Energy Solutions GmbH 

Rudolfstetten · Since 2020

The core activity of smart YES is consulting and optimizing energy consumption and management in companies, particularly through energy efficiency measures, energy management, project management and coordination. The company offers individual solutions for a sustainable energy future and supports customers in the implementation of energy optimization projects.

Technical Consulting & EngineeringConstruction & Project ManagementSustainability Sector
View profile5(2)
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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.