Energy & Environment

Wasserversorgungsgenossenschaft Waldmatte Niederschongau 

Schongau · Since 1987

water impulse GmbH 

Basel · Since 2019

The core activity of the company 'water impulse' is the development and marketing of technologies and products based on the rhythmic impulse of water to improve its quality and health promotion. This includes in particular the manufacture and distribution of devices such as the 'Oloid', which is used as a mixing and aeration device in various fields of application, as well as the provision of consulting and support services for projects in the field of water treatment and purification.

Weber Montagen GmbH 

Obergerlafingen · Since 2018

The core activity of Schneitter Weber Solar AG is the planning, installation and maintenance of photovoltaic systems, in particular rooftop, flat roof, in-roof and facade solar systems, for single-family homes, multi-family homes and commercial buildings in Switzerland.

We Care More GmbH 

Hünenberg · Since 2018

The core activity of We Care More GmbH is the financing and support of sustainable and fair productions and products on a global level, particularly in the areas of renewable energy, material recycling, health and medicine, as well as providing resources and know-how in crisis situations.

w-energie gmbh 

Sempach · Since 2015

West & Ost Energy AG 

Geneva · Since 2013

The core activity of West Ost Energy AG is the trade in natural gas and the efficient and cost-effective delivery of natural gas to consumers. The company is an independent natural gas supplier and offers natural gas deliveries throughout Europe.

WildKosmos GmbH 

Linden · Since 2004

WILI WILI TREE AG 

Bern · Since 2023

WILI WILI TREE® designs and manufactures waterproof bags and other outdoor products made from recycled PET material, which are simple, functional, high-quality and sustainable. The focus is on minimalist design and a respectful approach to nature.

winmit GmbH 

Stäfa · Since 2010

Winteler Haustechnik AG 

Gossau Sg · Since 2004

Wiplana GmbH 

Winterthur · Since 2023

The core activity of Wiplana GmbH is consulting, planning and implementing heating system modernizations and renovations, particularly in the field of heat pumps and air conditioning systems, with the goal of reducing energy consumption and protecting the environment.

WLS.CH GmbH 

Rothenhausen · Since 2007

The core activity of WLS.CH (WildLife Solutions) is to conduct scientific studies and develop solutions for the sustainable management of wildlife populations, particularly in conflicts between human interests and the needs of wildlife.

World LifeSpaces SA 

Lausanne · Since 2023

World LifeSpaces is a global provider of services in the field of forest conservation and restoration. The company's core activity is to support businesses and organizations in developing and implementing projects to compensate for CO2 emissions and preserve forest ecosystems. To this end, the company offers a platform that enables the measurement and monitoring of the impacts of forest conservation and restoration projects, and collaborates with experts from the fields of science, technology, and finance to develop sustainable business models. A portion of the company's profits is donated to forest conservation and restoration programs.

Xpanenergy AG 

Baar · Since 2024

Xpanenergy AG is an energy and commodities trading company active in power and gas markets and in trading European emission allowances (EUAs). Its services include risk management, market analysis and supply-chain management, and it trades commodities such as fertilizers, agricultural products, petroleum products, coal, metals and construction materials.

Yildirim GmbH 

Langenthal · Since 2002

The YILDIRIM Group is a globally operating conglomerate active in 9 different industries, including: metal and mining industry, port management, fertilizer and chemical production, energy and power generation, shipping and logistics, energy trading, financial services, construction and real estate, and international trade. The company's core activity involves developing and implementing sustainable solutions in these industries, with the goal of creating a prosperous future. This includes the production of renewable energies, such as solar, wind and geothermal energy, as well as the development of infrastructure projects and the provision of services in the various industries.

Yolly Suisse GmbH 

Zug · Since 2019

The core activity of YOLLY Suisse GmbH is the development, production and marketing of biodegradable products made from bamboo fibers, particularly drinking straws and cutlery, as a sustainable alternative to single-use plastic products for the catering industry and private households.

Yvonne und Alberto Galbiati-Stiftung 

Madetswil · Since 2009

YWT GmbH 

Hausen Ag · Since 2013

Zahnd Solartechnik 

Lengnau Be · Since 2015

Zengaffinen Ressourcen AG 

Steg Vs · Since 2016

Zengaffinen Ressourcen AG is listed as one of the companies within the Zengaffinen Unternehmungen and appears under the group’s construction‑related business units. The Zengaffinen group provides services in building and civil engineering and in areas such as landfill management, waste disposal and recycling.

Ziegerer Environmental and Sustainability Consulting 

Bern · Since 2018

The core activity of Ziegerer Environmental and Sustainability Consulting is consulting, analysis, evaluation, strategy and project development in the areas of environment, climate, energy and sustainability.

Zimma GmbH 

Pratteln · Since 2004

The core activity of Zimma GmbH is the provision of services in the field of heating and plumbing.

STEPS VENTURES AG 

Aesch Bl · Since 2013

ZOO-RIDING AG is a manufacturer and supplier of steerable ride-on animals for indoor and outdoor use, particularly for children. The company's core activity is the development, production and distribution of toy ride-on animals, such as baby horses, as well as accessories and spare parts.

zuerisee power gmbh 

Pfäffikon Sz · Since 2020

Netze Spreitenbach AG 

Spreitenbach · Since 2025

Growsolutions by A777 A. Dreisiebner 

Seuzach · Since 2025

The core activity of Growsolutions is the development and implementation of sustainable solutions for the use of renewable energy and the promotion of biodiversity. This includes: * Planning, installation and maintenance of green roofs that promote biodiversity in cities and enable the production of healthy, local food. * Manufacturing and installation of photovoltaic systems, including vertical and inclined modules, to optimize energy production. * Development and installation of wind turbines, including 6-blade turbines, which can be combined with green roofs and photovoltaic systems. * Research and development of new sustainable solutions, such as a lawn mower robot inspired by nature. The company aims to restore the connection between society and nature and develop sustainable solutions for a better quality of life.

power2grid AG 

Lausen · Since 2025

Omnisun GmbH 

Dürnten · Since 2025

The core activity of Omnisun GmbH is the planning, consulting, installation and assembly of photovoltaic systems for households and companies in Switzerland, with the goal of providing sustainable energy solutions and promoting the use of solar energy.

PeakSolar GmbH 

Speicher · Since 2025

Weltenergie AG 

Reinach Ag · Since 2025

AgriVolt SA 

Epalinges · Since 2025

Le Cèdre Solaire Sàrl 

Champagne · Since 2025

Wärme Thalwil AG 

Thalwil · Since 2025

Pura AG 

Schlieren · Since 2025

Energieverbund Neftenbach AG 

Neftenbach · Since 2025

Energieverbund Neftenbach AG is an energy company that operates a district heating network and manages the planning and expansion of the heating plant and heat network. The company uses wood from the Neftenbach forest as its primary energy source, burned in a woodchip boiler to supply school and private buildings.

Electro Luzi Sàrl 

Courrendlin · Since 2025

European Energy Transfer Sàrl 

Geneva · Since 2025

KRS Solar AG 

Buchs Zh · Since 2025

Future Farming Initiative (FFI) AG 

Zurich · Since 2025

ByeWaste Sàrl 

Bulle · Since 2025

A-Solar GmbH 

Seuzach · Since 2025

Efficentra Aktiengesellschaft 

Freienbach · Since 2025

Efficentra Aktiengesellschaft provides engineering services including measurements, consulting and technical implementation to improve building energy efficiency and indoor climate. Its services include energy audits (Energierevision), operational optimization, indoor climate measurements, reporting and construction management.

SGT GmbH 

Teufen Ar · Since 2025

Klimanova Sagl 

Mendrisio · Since 2025

Birton GmbH 

Kriegstetten · Since 2026

Dagda Ocean AG 

Lucerne · Since 2026

DIY Solar Vogt 

Uerzlikon · Since 2026

Green Fortis Sagl 

Pazzallo · Since 2026

Meyer Natur und Kultur 

Münsingen · Since 2026

Critical Earth 

Otelfingen · Since 2026