Energy & Environment

Christoffel Sanitär-Heizung AG 

Scuol · Since 2022

The core activity of Christoffel Sanitär-Heizung AG is the execution of sanitary, heating and ventilation work, including consulting and installation of sanitary facilities and ecological heating systems.

CH Trading Suisse GmbH 

Zurich · Since 2016

The core activity of CH Trading Suisse GmbH encompasses the development and implementation of innovative projects in the field of renewable energy and sustainable technologies. This includes, in particular: * The development of electro-kinetic power plants that produce electricity based on the Archimedes principle. * The construction of hydrogen power plants that produce hydrogen through electrolysis and store and utilize it as a clean energy source. * The construction of biogas and biomethane facilities that convert organic waste into renewable energy and simultaneously produce liquid and solid organic and organo-mineral fertilizers. * The development of systems for water production from air, utilizing condensation technologies to convert atmospheric humidity into drinking water. * The promotion of ecological and organic farming methods that are based on natural processes and avoid the use of synthetic pesticides and fertilizers. Overall, the company focuses on the development and implementation of sustainable solutions for the energy and agricultural sectors.

CH Tyre Center GmbH 

Zurich · Since 2014

CH Tyre Center GmbH collects and disposes of end-of-life tyres and trades in used tyres. The company provides collection, logistics and storage for large tyre volumes, arranges pickup by van or lorry, and uses mechanical rather than thermal processes for ecological disposal.

CIEL Solar SA 

Romanel-Sur-Lausanne · Since 2024

The core activity of CIEL Solar SA is the planning, installation and maintenance of solar systems for private, commercial and industrial customers in Switzerland, with the aim of promoting the energy transition and reducing dependence on fossil fuels.

CIGE Sàrl 

Blonay · Since 2013

The core activity of CIGE (Communauté Interdisciplinaire de gestion Environementale) is environmental consulting, design and protection. Specifically, this includes: * Renaturation and maintenance of biotopes, water bodies and landscapes * Environmental consulting and planning for private and public projects * Conducting environmental impact assessments and expert opinions * Maintenance and care of green spaces, trees and shrubs * Removal of invasive plant and animal species * Creation of habitats for native plant and animal species * Consulting and support for the implementation of environmental protection measures The company also offers specialized services such as wetland maintenance, water renaturation and the creation of biodiversity corridors.

Alpenglow AG 

Rüschlikon · Since 2023

The core activity of CINEGREEN AG is the development and distribution of environmentally friendly energy sources for the film industry, particularly quiet and reliable generators that serve as an alternative to conventional, CO2-emitting energy sources. The company offers a range of products, including NXTGEN generators and Salt-E-Dog batteries, specifically designed to meet the needs of film production. The company's goal is to reduce CO2 emissions in the film industry and promote sustainable production.

Cioce AG 

Rorschach · Since 2010

The core activity of CIOCE Gebäudetechnik is the planning, installation, maintenance and servicing of building technology systems, including heating, ventilation, air conditioning, sanitary and electrical installations.

CIPV GmbH 

Zurich · Since 2018

The core activity of CIPV GmbH is the consulting and planning of photovoltaic projects, particularly in the integration of solar energy into urban buildings and urban planning. This includes the development of strategies and market analyses, the planning and optimization of solar power plants, the evaluation of processes and supply chains, as well as the implementation of analyses and expert opinions. CIPV supports companies in introducing photovoltaics into their business field and helps optimize existing solar systems.

Circea SA 

Mies · Since 2024

Circea SA develops and installs systems to capture and purify biogenic CO₂ side‑streams from industrial processes. Services include recovery, dehydration, purification, compression and liquefaction of CO₂ (e.g. from alcoholic fermentation and biogas), plus logistics, consulting and pilot projects to enable reuse and circular value‑chain integration.

Circular Food Solutions Switzerland AG 

Winterthur · Since 2022

The core activity of Circular Food Solutions is to develop and offer innovative solutions for the processing of food side-streams, in order to utilize them as valuable resources in the plant-based meat industry. The company provides technology and consulting services to support companies in converting these by-products into profitable and tasty products.

Circular Hub GmbH 

Zurich · Since 2018

The core activity of the company 'Circular Hub' is to support Swiss companies and organizations in implementing a circular economy, particularly in the construction sector. To this end, the company offers a combination of innovative communication, advocacy and change management services to promote the transition from a linear throwaway economy to a resource-efficient circular economy.

Circulaya GmbH 

Birsfelden · Since 2021

The core activity of Circulaya Consulting is to advise companies in the field of sustainable packaging, particularly in the development and implementation of innovative, circular and environmentally responsible packaging solutions. This includes analyzing and optimizing packaging processes, developing sustainable packaging concepts, and supporting companies in implementing circular economy and eco-design.

CitizenBees SARL 

Neuchâtel · Since 2013

The core activity of CitizenBees is the development and provision of a service for urban beekeeping, which enables the installation and operation of beehives on the roofs of companies and municipalities. This service includes the provision of high-tech beehives equipped with sensors and webcams to monitor bee activity in real-time. Additionally, the company also offers biosurveillance services, where bees are used as environmental samplers to monitor environmental quality.

CJ Solar-Planning GmbH 

Heerbrugg · Since 2022

The core activity of CJ Solar Planning is the specialized planning of solar concepts, particularly the creation of 3D visualizations and project reports for photovoltaic systems, including the consideration of factors such as orientation, roof inclination, roof covering, shading and power consumption.

CKR Solar + Montage GmbH 

Staad Sg · Since 2023

The core activity of CKR Solar + Montage GmbH is the installation and assembly of solar energy systems, as well as the related services in the field of renewable energies.

CKW AG 

Lucerne

CKW AG is an energy and services company that generates electricity, operates grid infrastructure, and provides energy solutions such as photovoltaic systems, battery storage and heat networks. It also supplies building-technology services (heat pumps, charging infrastructure, electrical installations) and ICT services including datacenter, IT security and connectivity for residential and commercial customers.

CLARA Water AG 

Steinmaur · Since 2023

The company develops and distributes a water disinfection system called Clara, which uses electrolysis to produce sodium hypochlorite from salt and electricity to disinfect drinking water in rural areas and healthcare facilities.

Classen GmbH 

Zurich · Since 2022

Classen GmbH provides advisory services to governments, multilateral institutions, NGOs, family offices and corporates on carbon markets and engagement under Article 6 of the Paris Agreement. Its core offerings include policy advisory, business proofing (transactional support and financial modelling for mitigation activities) and practical training with ongoing Q&A support.

Claude Marie Marcuard, géologue EPFZ, expert et consultante 

Leysin · Since 1991

Claude Marie Marcuard, géologue EPFZ, expert et consultante provides independent expert and consultancy services in applied geology, geotechnical engineering, contaminated sites and groundwater. She conducts technical assessments, court expert reports, site investigations, environmental impact reports and environmental monitoring.

Clavisto Technologie GmbH 

Schaffhausen · Since 2010

The core activity of Clavisto is the development and implementation of innovative pyrolysis solutions to combat global climate change. Specifically, this includes: The transformation of waste into valuable resources through pyrolysis technology; The development and implementation of pyrogenic carbon capture systems (PyCCS); The promotion of reforestation and agroforestry projects, particularly in tropical regions; and Supporting customers in achieving their greenhouse gas reduction and removal goals. The company focuses on combating global climate change by reducing greenhouse gases and promoting sustainable solutions.