Energy & Environment

Ernst Kast AG 

Wittenbach · Since 2006

Ernst Kast AG provides sewer and drainage services including canal cleaning, pit emptying, CCTV inspections and a 24-hour emergency service. The company carries out cleaning, inspection and regulated disposal work for residential, commercial and municipal clients, including documented sludge transport for proper environmental disposal.

Ertag, Entsorgung, Recycling, Transporte AG 

Brig · Since 1992

The core activity of ERTAG AG is the disposal, recycling and transportation of waste, particularly kitchen waste, in the Upper Valais region.

Etawatt AG 

Schaffhausen · Since 1997

The core activity of Etawatt AG is the provision of services in the field of energy supply, particularly in the sustainable use of energy resources. This includes, among other things: energy contracting, district heating (district heating), photovoltaics, Heat-Box (heat generation) and VoltControl (electricity cost optimization). The company offers these services to various customer segments, including residential construction, industry and public institutions.

EVR Energieversorgung Raron AG 

Raron · Since 2004

The core activity of EnAlpin AG is the production, distribution and supply of electrical energy, in particular through participations in hydroelectric power plants and transmission facilities, as well as consulting and engineering for energy-related issues. Furthermore, the company is also active in supplying industrial and commercial customers and delivering to resellers (EVU).

EVS AG 

Mels · Since 1992

The core activity of EVS AG is the construction, operation and maintenance of water and gas pipelines, including industrial pipeline construction and house connections. The company also offers services in the field of gas energy, such as gas sales, installation of heating systems and replacement of heating systems.

energieUri AG 

Altdorf Ur

The company's core activity encompasses the planning, construction, operation and maintenance of power plants, as well as the generation, trading and marketing of energy. This also includes the management of energy facilities, the provision of system services, the monitoring and control of plants, and the billing and settlement of energy. Additionally, the company offers services in the areas of water supply and network operations.

EWK Energie AG 

Kölliken · Since 2009

The company's core activity encompasses the provision of energy and telecommunications services, including: Energy supply (electricity, gas, water), Energy consulting and optimization, Network services (transformer stations, public lighting), Telecommunications services (Internet, fiber optics, data centers, cloud workspace, voice/chat), Electrical services (building automation, rental equipment, electrical shop), Mobility services (E-car sharing). The company thus offers a wide range of services in the energy and telecommunications sector and can be considered a full-service provider in this field.

EWS AG 

Ibach

The company's core activity encompasses the provision of energy and telecommunications services, including electricity production, distribution and sales, as well as internet, TV and telephone connections. Furthermore, the company offers services in the field of building technology, such as electrical installations, smart home solutions and switchgear construction, as well as renewable energies, e-mobility and energy-efficient building renovations.

Fankhauser Solar AG 

Solothurn · Since 2014

The core activity of Fankhauser Solar AG is the distribution and consulting of products and solutions in the field of photovoltaics, including solar modules, inverters, storage systems, mounting systems, accessories and electromobility. The company also offers services such as consulting, planning and conception, logistics, training and events to support customers in realizing their photovoltaic projects.

FEDERSPIEL SANITARI Sagl 

Mesocco · Since 2006

The core activity of Federspiel Sanitari Sagl is the installation, maintenance and repair of sanitary facilities and heating systems, including the use of renewable energies such as solar and wood heating. Specific services include: installation of sanitary facilities, installation and maintenance of heating systems, repair and replacement of boilers and heating boilers, cleaning of clogged pipes, installation of aqueducts, and installation of renewable energy systems (e.g. solar and wood heating).

Fermeto Handels AG 

Münchenstein · Since 1979

Fernwärmetechnik Gadola 

Haldenstein · Since 2019

The core activity of Fernwärmetechnik Gadola is the planning, consulting and execution of district heating systems, particularly in the design and dimensioning of pipeline networks as well as the supply of related products such as plastic jacket pipes, flexible PE-Xa pipes and leak warning systems.

Ferro Recycling Verein zur Förderung des Recyclings von Stahlblechverpackungen 

Zurich · Since 1994

The core activity of Ferro Recycling is the collection and recycling of tinplate packaging.

FESTEX AG 

Luterbach · Since 2018

The company's core activity primarily includes asbestos remediation and disposal, as well as the solidification of asbestos-containing demolition materials. Additionally, the company also offers painting services, hazardous substance remediation, blasting technology (sandblasting, shot blasting, dry ice blasting) and scaffolding construction.

FG Haustechnik GmbH 

Freienbach · Since 2008

Fiechter Heizungen AG 

Möhlin · Since 1975

The core activity of Fiechter Heizungen AG is the planning, installation and maintenance of heating systems, particularly in the area of heating renovations and new constructions.

Flückiger + Schärer GmbH 

Wyssachen · Since 2001

The core activity of Flückiger + Schärer GmbH encompasses the installation, maintenance and repair of: heating systems, solar systems, sanitary systems, plumbing work, lightning protection systems, and chimney construction. Additionally, the company also offers core drilling and a comprehensive repair service.

Fluxim AG 

Winterthur · Since 2007

The company Fluxim develops and distributes software and offers additional services such as consulting, training, customized software development and device characterization to meet the needs of its customers in the field of materials science and research.

FMV SA 

Sion · Since 1991

The company's core activity is the production, distribution and utilisation of renewable energy, particularly hydropower, photovoltaics and other renewable energies. The company operates a 100% renewable production park and aims to become the largest Swiss hydropower producer by 2050.

free energy M. Kindlimann 

Gontenschwil · Since 2004

The company free energy is primarily active in the areas of water filtration, washing and rinsing systems, nutrition, and health products. It distributes products such as water filters, drinking bottles, fittings, textile washing systems, dishwashing systems, and cleaning products. In addition, the company also offers books, DVDs, oracle cards, and other spiritual products. It appears that the company has a focus on sustainable and healthy living.

Fuchs Holzbau Brienz GmbH 

Brienz Be · Since 1999

The core activity of Fuchs Holzbau Brienz GmbH is timber construction, particularly the planning and execution of timber construction work such as roofing, façade construction, interior finishing, staircase construction and carpentry, as well as the installation of solar systems.

Fuhrhalterei Alfred Staub, Raeumen / Entsorgen 

Menzingen · Since 2015

The company provides waste disposal and clearance services, including waste disposal, small transports and removals. It also carries out clearances and disposals with suitable vehicles and offers these services to private individuals and companies.

Funicar Muldenzentrale AG 

Biel/Bienne · Since 2007

The core activity of Funicar Muldenzentrale AG is the disposal and recycling of various materials, particularly: construction waste disposal (excavation material and construction waste), paper and cardboard disposal, glass disposal, PET bottle disposal, and municipal services for over 60 municipalities in the region. The company offers a wide range of services, including: collection and transportation of valuable and recyclable materials, transshipment and sorting of materials, provision of skips and containers for disposal, flexibility and individual collection solutions for private and municipal customers.

Furore Kanalservice GmbH 

Spreitenbach · Since 2017

The core activity of Furore Kanalservice GmbH is the provision of services in the field of sewer systems, particularly in the areas of sewer cleaning, sewer inspection and sewer rehabilitation. This includes, among other things: Regular maintenance and cleaning of sewer pipes, Visual condition checks and tightness tests, Environmentally friendly disposal of oils and sludges, Manhole emptying and new construction flushing, Surface cleaning work and sludge disposal. The company offers these services to private households, companies and the public sector and has an experienced team and modern working techniques.

gadPlus AG 

Biel/Bienne · Since 2012

The core activity of gadPLUS AG is the integration of disadvantaged people, such as long-term unemployed, social assistance recipients and recognized refugees, into working life through employment and qualification. The company offers them a meaningful activity and acts as a link between the individual and the market. gadPLUS AG is an entrepreneurially managed social firm that is committed to both social and business goals.

Gama Solar GmbH 

Pieterlen · Since 2024

The core activity of Gama Solar GmbH is the planning, development and installation of photovoltaic projects, including individual consulting, detailed planning, professional installation and reliable maintenance and service for property owners and companies.

GC Energie SA 

Hérémence · Since 2016

The core activity of GC Energie SA is the planning, installation and consulting of renewable energy and energy efficiency solutions for buildings, particularly in Switzerland and the Valais region. This includes: installation of photovoltaic systems, energy consulting and studies, energy renovation (energy efficiency measures), self-consumption management (self-consumption of generated energy), energy storage solutions, and expertise and consulting in the field of renewable energy and energy efficiency. The company thus offers a comprehensive range of services to support building owners in implementing sustainable and efficient energy concepts.

GDL Sàrl 

Bussigny · Since 2002

GDL Sàrl is primarily engaged in energy efficiency and thermal expertise. Its core activities include: thermal balancing, energy efficiency testing and certification according to EN CECB / CECB Plus, energy expertise, Minergie certification for buildings, and a technical department for energy efficiency and thermal expertise. The company thus provides services in the fields of energy efficiency, thermal expertise, and sustainable building planning.

Genossenschaft Elektra Thal 

Matzendorf · Since 1911

Genossenschaft Elektra Thal operates an electricity distribution network and provides electricity services such as energy supply, network-usage billing, meter reading and connection works for residential and commercial customers. It also offers energy-consumption advice, support for self-consumption communities, e-mobility charging infrastructure and public lighting services.

Genossenschaft Energie Fischingen 

Dussnang · Since 2021

The company is an energy and communications service provider offering electricity, water, and fiber-optic internet services. The core activities include providing energy and water supply, managing electricity and water tariffs, promoting energy efficiency, and providing fiber-optic internet services.

genossenschaft solaroltingen 

Oltingen · Since 2012

The core activity of solaroltingen is the production of renewable energy, particularly through the operation of a solar power plant. The company regularly monitors and publishes production data, pursues projects for energy-related renovations and supports the realization of private PV installations.

Genossenschaft Solar BeO Ost 

Matten B. Interlaken · Since 2013

Genossenschaft Solar BeO Ost implements photovoltaic projects and provides information on the use of renewable energy. It installs PV systems on institutional and commercial roofs, organises information events and supports regional collaboration on renewable energy projects.

Girardin - Eco2Solutions 

Bassecourt · Since 2023

The core activity of Girardin-Eco2Solutions is consulting and implementing energy efficiency measures for property owners, tenants, property managers and small and medium-sized enterprises (SMEs). The company offers services such as energy audits, maintenance and monitoring of heating systems, quality assurance of heating water and the implementation of energy efficiency solutions. The goal is to reduce energy costs and minimize environmental impact through CO2 emissions.

Green Venture Invest AG 

Schmerikon · Since 2009

The core activity of Green Venture Invest AG is the planning, technical implementation and commissioning of photovoltaic systems, including the installation of rooftop systems, in-roof systems, flat roof systems, facade projects and carports. In addition, the company offers system services and energy management solutions to increase the efficiency and autonomy of photovoltaic systems.

Grether + Schäfer AG 

Gelterkinden · Since 1997

The core activity of Grether + Schäfer AG is building technology planning, particularly in the area of heating, ventilation and air conditioning (HVAC). The company provides engineering services for the planning and implementation of building technology systems, including energy consulting, heat, cooling, ventilation and solar systems.

Gries Wind AG 

Ulrichen · Since 2011

The company's core activity is the public administration and service for the municipality of Obergoms, including energy supply, hydroelectric power, spatial planning, construction, waste management, safety and other municipal services.

Gyr Solar Eco 

Bettingen · Since 2019

Gyr Solar Eco provides photovoltaic systems and related services, including system planning, supply and installation. The company also offers energy consulting and maintenance services for solar installations.

H2tec AG 

Rotkreuz · Since 2018

The core activity of H2tec AG is the development, manufacture and servicing of hydrogen technologies and uninterruptible power supply systems (USV) to provide sustainable energy solutions for the stationary sector.

Hächler Metall Recycling 

Hunzenschwil · Since 2016

The core activity of Hächler Metall Recycling is environmentally friendly metal disposal and professional recycling of scrap iron for industry, trade and private individuals. This includes the collection, separation and preparation of metals for return to the recycling cycle, as well as metal trading. In addition, the company offers further services such as crane work, transportation, dismantling and disposal of machines, demolition and clearance.

Harlacher Rückbau AG 

Otelfingen · Since 2010

The core activity of Harlacher Rueckbau AG is the execution of demolition, dismantling and disposal work, including: building and structure demolition, interior demolition and gutting of buildings, tree and vegetation felling and clearing, and disposal of demolition materials and other waste. The company offers these services as a full-service provider, i.e. it takes over all necessary work from planning to execution and disposal.

Hauser Solutions GmbH 

Uerikon · Since 2020

The core activity of Hauser Solutions GmbH is real estate brokerage and consulting, particularly in the sale and purchase of real estate, as well as in the valuation and development of real estate. The company also offers services such as construction management and renovation of real estate.

HDT Elektro GmbH 

Tägerwilen · Since 2017

HDT Elektro GmbH provides electrical engineering services, carrying out installations for new builds and renovations as well as maintenance and repairs, and planning, installing and servicing lighting systems, photovoltaic installations, e‑mobility charging solutions, network/telephony, security systems and smart‑home automation.

HEBT GmbH 

Kriens · Since 2023

HEBT GmbH is a service company operating in timber construction and photovoltaic installation. It provides mounting of photovoltaic systems (DC side), general carpentry and assembly work, construction of wooden terraces, and transport services with a van featuring a large loading platform.

Heer AG, Wärmetechnik 

Laufen · Since 1988

The core activity of Heer AG Wärmetechnik is the planning, installation, maintenance and repair of heating systems, including oil, gas, pellet and wood heating systems, heat pumps and solar systems, as well as burner service and the renovation of old heating systems, particularly in the field of building technology.

Herding AG 

Aadorf · Since 1988

Herding AG develops and supplies industrial filtration and dust-collection systems using sinter‑plate surface filtration to separate solids from gases. The company provides complete solutions and filter elements, including consulting, customer-specific design, manufacture, installation, commissioning, maintenance, and safety and digital services.

hpwtec AG 

Langnau Im Emmental · Since 2010

The core activity of hpwtec AG is the development, manufacture and construction of thermal solar systems, photovoltaic systems, solar storage systems and solar filling stations. The company also offers plant-specific solar storage systems and trading products for solar energy systems.

HSE Haustechnik AG 

Geuensee · Since 2017

The core activity of HSE Haustechnik AG is the planning, installation and maintenance of building technology systems, particularly in the areas of: * Heating (heat distribution, heating systems) * Sanitary (sanitary installations, bathroom renovations) * Ventilation (ventilation and air conditioning systems) * Solar (thermal solar systems) The company offers services for new and renovation projects and positions itself as a competent partner for heat, water and solar energy.

Hug AG Tankrevisionen-Tanksanierungen 

Untervaz · Since 1975

The core activity of Hug AG is the provision of services related to oil tank facilities, specifically: tank renovation (cleaning and renovation of existing tank facilities), tank revision (regular inspection and maintenance of tank facilities), and tank dismantling (dismantling and disposal of old oil tanks). The company offers these services to various customers, including homeowners, companies, municipal administrations, and property management companies.

Hugo Keiser AG 

Zweidlen · Since 1989

The core activity of Hugo Keiser AG encompasses the planning, implementation and maintenance of solutions in the field of building technology and renewable energies. This includes in particular: heating construction and renovations (heat pumps, wood/pellet heating systems, ground source heat pumps, oil and gas heating systems), sanitary work (bathrooms, water softening/demineralization, sanitary repairs, boiler service), and solar systems (photovoltaics, solar thermal systems, solar roof tiles, storage/battery systems). The company thus offers comprehensive solutions for building technology and renewable energies, positioning itself as a competent contact for overall solutions in the field of sustainable and economically viable energy generation.

Hyphen GmbH 

Zurich · Since 2019

The company Hyphen GmbH/Sàrl primarily focuses on architecture, design, and education, particularly in the field of sustainable development and environmental education. The core activities include: * Architecture: Renovations, conversions, and new constructions with a focus on participatory, low-tech approaches and close collaboration with clients. * Design: Developing concepts and solutions for sustainable and socially responsible design of spaces and processes. * Education: Conducting workshops and projects aimed at raising awareness and empowering people, especially children and young adults, to take action on environmental and sustainability issues. A specific example of these activities is the project 'Zweirad-Celsius', a mobile studio serving as a platform for exchanging ideas and experiences on environmental and sustainability topics.