Energy & Environment

Wärmeverbund Burgistein / Seftigen GmbH 

Burgistein · Since 2014

Wärmeverbund Burgistein / Seftigen GmbH operates a wood-chip district heating plant that burns residual wood to produce heat. The system supplies space heating and domestic hot water to residential buildings, industrial and commercial customers, and sports halls in parts of Burgistein and Seftigen.

Waterfy Khaled 

Geneva · Since 2023

The core activity of Waterfy is the development, manufacture and marketing of high-tech water filtration and purification systems aimed at removing pollutants such as chlorine, lime, heavy metals and pesticides from drinking water, in order to improve the health and well-being of consumers.

WINKELMANN ELEKTRO AG 

Kerzers · Since 1999

The core activity of Winkelmann Elektro AG is electrical engineering and building automation.

Zambello SA 

Stabio · Since 2006

Zambello SA is a provider of services and solutions in the field of building technology, particularly in the areas of: Sanitary technology (installation and maintenance of sanitary facilities), Heating technology (installation and maintenance of heating systems), Air conditioning (installation and maintenance of air conditioning systems), Ventilation technology (installation and maintenance of ventilation systems), Renewable energies (installation of photovoltaic systems). The company also offers consulting services in the field of energy efficiency and environmental protection.

Zimmerei Berger GmbH 

Toffen · Since 2016

The core activity of Zimmerei Berger GmbH is the provision of services in the field of timber construction, interior finishing, carpentry, roofing and agricultural buildings. This includes in particular: Timber construction: new buildings, conversions and renovations with wood; Interior finishing: stairs, doors, windows and other interior finishing solutions; Roofing: professional roofing with high-quality materials; Planning: consulting, CAD planning, building submissions and approvals. The company thus offers a comprehensive range of services for builders, architects and planners in the greater Bern area.

Ziswiler AG A-Z Recycling 

Bern · Since 1976

Ziswiler AG A-Z Recycling collects and processes recyclable materials such as glass, PET beverage bottles and metal cans, and manages logistics and container services for delivery to the recycling industry. The company also operates PET Recycling AG as a subsidiary.

3A Solar AG 

Kreuzlingen · Since 2024

The core activity of 3A Solar AG is the planning, installation and sale of solar systems for homeowners in Eastern Switzerland. The company offers customized solar solutions, including consulting, planning, installation and certification of solar systems, as well as the integration of storage systems and wallboxes for electric vehicles.

abbeo ag 

Hünenberg · Since 2012

The core activity of abbeo ag is the development and provision of solutions for air hygiene, particularly through the application of bipolar air ionization, to create a healthy and clean air quality in various environments such as homes, offices, public spaces and industrial facilities.

Acqua solar Sàrl 

Rennaz · Since 2011

Acqua solar Sàrl provides installation and maintenance services for sanitary systems, heating and solar thermal solutions, covering new installations, renovations, boiler replacements and repairs. Services include 24/7 emergency response and the provision of mobile boiler units for temporary heating needs.

Aeschi Haustechnik AG 

Laufen · Since 2016

The core activity of Aeschi Haustechnik AG encompasses the planning, installation, and maintenance of building technology systems, particularly: Sanitary installations (bathroom renovations, water treatment, etc.), Heating construction (heating systems, renewable energies, etc.), Plumbing work (sheet metal work, pipeline construction, etc.), and Service and repair work for all three areas. The company offers its services for renovations, new constructions, and existing buildings and has specialized in the renovation and conversion of building technology systems.

AEW Energie AG 

Aarau · Since 1916

The company's core activity is the provision of services in the field of energy supply and distribution, including: network construction, operation and maintenance, metering services, public lighting and area lighting, battery storage solutions (BESS), electromobility and charging stations, telecommunications, heat and cold projects, and energy supply and sales. The company also offers various services for business customers, such as electricity procurement, network usage and natural electricity certificates.

A.F. SolarPro GmbH 

Schenkon · Since 2022

The core activity of A.F.SolarPro GmbH is the planning, installation and maintenance of photovoltaic systems, as well as providing solar energy solutions for households and companies. The company offers high-quality solar products, energy consulting, financing solutions and comprehensive customer service to support customers in switching to renewable energy sources.

A. Gisiger GmbH 

Unterägeri · Since 2001

The core activity of A. Gisiger GmbH is the planning, installation and maintenance of sanitary facilities, heating systems, household appliances, solar systems and metal ceilings, as well as the operation of a sanitary shop. The company also offers emergency and service services in these areas.

Agricon GmbH 

Muri Ag · Since 2000

The company is primarily active in the certification and control of agricultural businesses and products, particularly in the areas of organic farming, animal welfare and water protection. It offers certification programs such as ÖLN (Ecological Performance Record), IP-Suisse programs and QM-Swiss Meat, and supports farmers in complying with environmental and animal welfare standards.

AIO-Solar AG 

Ruswil · Since 2024

AIO-Solar AG provides consulting, sales, project management, installation, commissioning and maintenance of photovoltaic, solar and battery systems. The company assesses load profiles, designs system solutions, assists with permit applications and funding, and delivers storage, optimization and service work.

AIO-Solar Contracting GmbH 

Ruswil · Since 2015

AIO-Solar Contracting GmbH provides consultancy, sales, project management, installation, commissioning and maintenance of photovoltaic systems and solar battery storage solutions. Its services include energy optimization, load-profile analysis, financing support and ongoing service contracts.

Aktiengesellschaft elektro AGZ 

Altdorf Ur · Since 1998

The core activity of AG Elektro AGZ is the planning and execution of electrical installations, including: electrical planning, electrical installations, building automation, PV systems, E-Mobility, electrical storage, switchgear combinations, and communication systems. Additionally, the company offers a repair service for electrical installations.

Ardüser Saas GmbH 

Saas Im Prättigau · Since 2012

The core activity of Ardüser Saas GmbH is the installation and maintenance of heating, sanitary, solar and comfort ventilation systems. The company offers services in these areas and positions itself as a local partner for customers in the region.

ARI GROUP SAGL 

Li Curt · Since 2001

The core activity of ARI Group Sagl includes the planning, installation and maintenance of electrical systems, including: electrical distributors, photovoltaic systems, kitchen equipment, purchase and sale of computers, monitors, printers and accessories, assistance and support for electrical appliances and computers, automation and switchboards. The company also offers services in the fields of electrical safety, lighting technology and satellite systems.

AVOLTAVI SARL 

Bulle · Since 2012

The core activity of Avoltavi is the planning, installation and management of renewable energy systems, particularly photovoltaic systems, storage batteries, charging stations for electric vehicles and heat pumps, with the aim of supporting customers in the energy transition and improving their energy efficiency.

Birkhofer Elektro-Service 

Grossaffoltern · Since 2017

The core activity of Birkhofer Elektro-Service is the provision of electrical installation and service, including energy management, by a federally certified electrical installer.

Briod SA 

Clarens · Since 1976

The core activity of Briod SA consists of planning, implementing and installing: 1. High-speed networks (Fibre Optique) taking into account future needs. 2. Solar energy systems (photovoltaic installations), including: - Feasibility studies and return on investment studies - Static building investigations - Electrical dimensioning studies - Installations for various needs.

Broder Erdwärme GmbH 

Sargans · Since 2006

Broder Erdwärme GmbH performs geothermal borehole drilling (ground heat probes) and the installation of connecting pipelines, and supplies precast concrete elements such as prefabricated garages.

B+W Elektro GmbH 

Zurich · Since 1999

The core activity of Bernhard + Wigger GmbH is the provision of services and solutions in the field of electrical installations, including: electrical installations, smart home solutions, e-mobility solutions, solar systems, and network services. The company thus offers a wide range of electrical services tailored to the needs of private individuals and businesses.

Cadcime SA 

Eclépens · Since 1993

Cadcime SA is engaged in the production and distribution of district heating. It operates a network of underground pipes through which hot water circulates to heat buildings in the surrounding area. The company's core activity includes the production, distribution and sale of district heating to private and business customers.

Capoferri G e M servizi ecologici 

Balerna · Since 1995

Capoferri G e M servizi ecologici is a service company for maintenance and cleaning of sewer and drainage systems. Services include sewer and pipeline maintenance and cleaning, septic- and street-drain cleaning, video-camera inspections and fault localization, pipe rehabilitation by internal lining, and rental of specialised equipment.

ch-Solar AG 

Dürnten · Since 2008

The core activity of ch-Solar AG is the planning, consulting, installation and maintenance of solar systems, in particular photovoltaic systems, as well as the installation of battery storage systems and charging stations for e-mobility. The company also offers solutions for optimizing the self-consumption of solar energy.

Coquoz Holding SA 

Muraz (Collombey) · Since 2021

The core activity of Coquoz Démolition & Fils SA is the execution of demolition and recycling works. The company offers services such as the dismantling and disposal of buildings, structures and materials, as well as the reuse of recyclable materials.

CH1961 SA 

Savièse · Since 1996

The core activity of Courtine & Heritier SA consists of planning, installing and maintaining technical systems in buildings, particularly in the field of building services, as well as carrying out work on the building envelope. Specifically, this includes: installation and maintenance of heating systems (oil, gas, heat pumps, solar systems), sanitary technology, ventilation systems, energy efficiency measures (Minergie), planning and execution of roofing work (Couverture, Ferblanterie, Revêtement de façade, Toiture bardeau mélèze), sealing work (Etanchéité), and renovations and conversions of buildings. The company thus offers a comprehensive range of services in the field of building technology and envelope.

Crottet AG 

Düdingen · Since 1969

The core activity of Crottet AG includes electrical installations, lighting, communication, smart home, photovoltaics, switchgear and the sale of household appliances. The company also offers training opportunities for electricians and has a specialist store for household appliances.

Dearbeecandle, Inh. Stanisavljevic 

Thalheim An Der Thur · Since 2022

The core activity of Dearbeecandle is the manufacture and sale of sustainable beeswax candles, made from 100% natural beeswax and handcrafted in Switzerland.

Decentlab GmbH 

Dübendorf · Since 2008

The core activity of Decentlab is the development and provision of wireless sensor technologies and services for distributed, cost-effective monitoring solutions, particularly in the areas of environmental monitoring, infrastructure monitoring and smart city projects, using LoRaWAN technology.

Dettling Holzbau AG 

Brunnen · Since 1973

The core activity of Dettling Holzbau AG is timber construction, particularly the planning, execution and maintenance of timber structures, including interior finishing, roofing, value preservation, timber system construction, nail plate construction and solid wood construction.

DEVAUX FRERES CHAUFFAGE & SANITAIRE SARL 

Romanel-Sur-Lausanne · Since 2011

Devaux Frères Chauffage & Sanitaire provides services in the field of heating and plumbing installations, including: installation, maintenance and repair of heating systems, installation, maintenance and repair of sanitary and water systems, emergency services for heating and plumbing problems, and renovation and transformation of heating and plumbing installations. The company offers its services to private individuals, businesses, architects and administrations, covering the entire western Switzerland, with a focus on the canton of Vaud.

Drainjet AG 

Buchs Sg · Since 2016

The core activity of DrainJet Robotics AG is the industrial cleaning and renovation of surfaces, canal pipes, tubes and shafts using high-pressure water jet technology. Specifically, this includes the removal of deposits, concrete and steel anchors, liners, drainage holes and other work in the field of industrial cleaning and sewer renovation.

Duna Solar GmbH 

Berneck · Since 2024

The core activity of Duna Solar GmbH is the planning, installation and maintenance of solar systems for private, commercial and industrial customers in Switzerland. This also includes the provision of energy storage systems and solutions for electromobility. The company offers individual solutions tailored to the specific needs of its customers, and places a strong emphasis on quality, reliability and customer satisfaction.

Eco Collect GmbH 

Mellingen · Since 2024

The core activity of Eco Collect is the collection and disposal of recyclable materials such as glass, cardboard, PET, aluminum cans, and paper directly from the customers' doorstep. The company offers a convenient service where customers receive recycling bags that they fill with the corresponding materials and then place in front of their door, where they are collected by Eco Collect.

EcoJetSuisse SA 

Vernier · Since 2020

The core activity of EcoJetSuisse SA is the provision of services in the field of assainissement (cleaning and maintenance of sewage and wastewater systems) with specialized vehicles (ADR/ATEX), including: Hydrocurage (cleaning of sewage pipes with high-pressure cleaners), pumping of various types of liquids (e.g. water, wastewater, chemicals), inspection of sewage pipes with cameras, cleaning of sewage pipes and systems, and 24/7 emergency services for urgent interventions. The company offers these services primarily to industrial companies, but also to other customers.

ecoLive management environnemental, Olivier Brüggimann 

Bellevue · Since 2007

ecoLive management environnemental, Olivier Brüggimann provides environmental management and sustainability consulting. Services include climate and environmental protection, chemical risk management, training and awareness, development of climate/sustainability labels and specialised guides, and support for responsible procurement.

ecoLive association 

Bellevue · Since 2021

ecoLive association is a non-profit organisation that promotes responsible environmental, climate and resource-use behaviours and develops sustainable practices. It produces educational materials, develops tools and organises events to support the implementation of sustainability measures, and collaborates closely with the ecoLive management environnemental office while remaining legally independent.

ecosinergie tienergy SA 

Ponte Tresa · Since 2014

The core activity of ecosinergie tienergy SA is the planning, installation and maintenance of renewable energy systems, in particular: photovoltaic systems (PV systems) for private and commercial customers; electromobility solutions, including charging stations for electric vehicles; energy storage systems and solutions; and smart home systems for optimizing energy consumption. The company also provides services such as consulting, planning, installation, maintenance and repair of PV systems and electromobility solutions.

EKT AG 

Arbon · Since 1912

EKT AG operates electricity distribution networks and provides engineering, construction and operational services for network planning and grid management. The company also develops and operates renewable energy installations and energy contracting solutions for buildings, and offers digital services such as a fibre-optic network and a datacenter.

Elektrizitätsversorgung Kaltbrunn AG 

Kaltbrunn · Since 1947

The core activity of Elektrizitätsversorgung Kaltbrunn AG (EVK AG) encompasses the reliable supply of private customers, commercial enterprises, administrations, schools, agriculture and medium-sized industry with electricity and natural gas. This also includes electrical and communication installations, property management, the operation of an electrical specialist store, as well as the rental of aerial lifts.

Elektrizitätswerk Obergoms AG 

Münster Vs · Since 1950

The company is an electricity supplier specializing in the production, distribution and supply of electrical energy. The core activities include the generation of electricity from various sources, such as hydroelectric power plants, the supply of electricity to households and businesses, as well as the maintenance and operation of the power grid. In addition, the company also offers services such as energy consulting, meter reading and replacement, as well as the installation of electric charging stations for electric vehicles.

Elektro Hodel AG Egolzwil 

Egolzwil · Since 2010

The core activity of Elektro-Hodel AG is the provision of electrical services, particularly in the areas of electrical installations, network installations, service and repairs, solar power systems, and e-mobility solutions. The company thus offers a wide range of electrical services for private and business customers.

Elektro Rollier-Schaedeli AG 

Ortschwaben · Since 1987

The core activity of Elektro Rollier Schaedeli AG is the provision of services and products in the field of electrical engineering, particularly in the following areas: electrical installations (from simple sockets to complex building automation), LED lighting (including the sale of LED products and operation of an LED showroom), household appliances (including the sale of exclusive models and online catalog), repairs and service for electrical appliances, telematics, IT and TV, electrobiology, central vacuum cleaners, and photovoltaics. The company also offers apprenticeships for electricians and electrical fitters.

Elektro Wild + Barmettler AG 

Oberdorf Nw · Since 1986

The company provides electrical installation services, including planning and design of electrical systems, as well as innovative solutions for building automation, encompassing optimal control of building technology, high energy efficiency and comfort.

Emme Haustechnik GmbH 

Lützelflüh-Goldbach · Since 2001

The core activity of Emme Haustechnik GmbH is the planning, installation and maintenance of sanitary, ventilation and heating technology, including solar systems, as well as the execution of repairs and conversions in these areas.

Energetika SA 

Cresciano · Since 2012

The core activity of Energetika SA is the planning, installation and maintenance of photovoltaic systems, energy storage systems and charging infrastructure for electric vehicles. The company also offers services in the field of electrical certification and documentation.

Energiewerker GmbH 

Zurich · Since 2023

The core activity of Energiewerker GmbH is the planning and construction of turnkey energy systems, which include energy generation through photovoltaics, intermediate storage through battery storage and hydrogen seasonal storage, as well as optimized self-consumption through energy management. The company also offers services in the areas of cybersecurity, emergency power supply and e-mobility.