Energy & Environment

Büro für ökologische Optimierungen GmbH 

Tuggen · Since 2001

The company's core activity is the management of a foundation focused on the ecological and landscape enhancement of the Lauerzersee nature reserve. This includes the implementation of projects, construction management, fundraising, preparation of foundation board meetings and the execution of foundation board decisions.

Burri Smart Power Solution GmbH 

Safnern · Since 2011

The company's core activity is the provision of services in the field of electrical installations, photovoltaics and solar systems.

Voltwerk AG 

Flawil · Since 2003

The core activity of Burtscher Elektro- und Gebäudetechnik AG encompasses the planning, installation, and maintenance of electrical and building technology systems, particularly in the field of renewable energies, such as photovoltaics, e-mobility, and battery storage. This also includes the installation and maintenance of solar and photovoltaic systems, energy management systems, electrical installations, household appliances, IT and network systems, as well as automation and smart home solutions.

Butig74, A. Schöni 

Aedermannsdorf · Since 2022

The company Butig74 has a core activity that focuses on several areas: Woodworking: manufacturing furniture from reclaimed wood such as pallets and wine crates, as well as building raised beds and terrace floors. Fire cooking: leading workshops on cooking over an open fire, as well as catering and events with fire cooking. Gardening: mindful gardening, permaculture tours, and sales of garden products. Sales of products: operating an online shop selling woodworking, garden products, and other products. Overall, the company's core activity can be described as a combination of craftsmanship, education, and sales of products in the areas of gardening, woodworking, and fire cooking.

BUYECO Sàrl 

Prangins · Since 2014

The core activity of BUYECO is to provide a platform for the trading and management of certificates of origin for renewable energies, particularly for electricity producers, with the aim of supporting the development of renewable energies in Switzerland and worldwide.

Bym Solar GmbH 

Bern · Since 2023

The core activity of BYM Solar is the planning, installation and maintenance of solar energy solutions, particularly the installation of solar systems, to help customers reduce their energy costs and use environmentally friendly energy.

BZA AG 

Raperswilen · Since 2001

The core activity of BZA AG Solar is the planning, construction, maintenance and operation of photovoltaic systems as well as the sale of solar power. The company also offers services such as energy consulting, analysis and simulation, planning, construction, installation, maintenance and computer-based maintenance of photovoltaic systems.

BZ Montage GmbH 

Zofingen · Since 2015

BZ Montage GmbH carries out installation works for resin‑cast and metal‑enclosed busbars, cable trays and wire‑mesh cable ducts, and complete photovoltaic systems. Services include potting and testing of busbar couplings with documentation and measurement protocols, on‑site coppering and touch protection, electrical installations under an installation permit, and general assembly work.

Càd EcoLogis SA 

Péry · Since 2020

Càd EcoLogis SA operates a district heating system (chauffage à distance/CAD) supplying heat to connected buildings.

CADIOM SA 

Le Lignon · Since 1999

CADIOM SA operates a district heating network supplied with heat recovered from the Cheneviers waste incineration plant. It provides heat to residential and tertiary customers via a primary pipe network and heat-exchange substations, using superheated water circulated in a closed loop.

CADOUEST SA 

Prilly · Since 2011

The core activity of Cadouest SA is the planning, construction, realization, execution, maintenance and operation of district heating networks, as well as the distribution and sale of heat in the municipalities of Prilly and Renens. The company focuses on the use of renewable energies and the reduction of CO2 emissions.

CalandaAir AG 

Chur · Since 2023

The core activity of CalandaAir AG is the development and distribution of innovative air quality management systems, which aim to improve indoor air quality and thus create a healthier and more pleasant environment for people.

Calanda Recycling AG 

Bonaduz · Since 1964

Calore SA 

Locarno · Since 1996

The core activity of Calore SA consists in the planning, implementation and management of district heating systems in Switzerland, particularly in the canton of Ticino. This also includes conducting feasibility analyses and taking on contracting tasks, where the company, as contractor, assumes responsibility for the planning, implementation, financing and management of heat and cooling systems for customers.

Calstrom GmbH 

Trin Mulin · Since 2007

Calstrom GmbH designs and supplies energy and safety systems, including photovoltaic energy centers, solar thermal systems for hot water and heating, small hydropower installations (Pelton turbines) and backup generators. The company also provides automation, measurement and control (PLC) solutions and wildlife warning systems for road safety.

CamperSolar GmbH 

Unterägeri · Since 2020

The core activity of CamperSolar GmbH is the sale and delivery of solar systems, batteries and related components for motorhomes, campers and garden applications. The company also offers installation and consulting services and delivers its products directly to customers in Switzerland and Liechtenstein.

Canaliservices SA 

Bulle · Since 2022

The core activity of Canaliservices SA is to provide services in the field of sewerage and wastewater management, specifically: * Curage (cleaning and maintenance of sewer pipes) * Débouchage (unclogging of clogged sewer pipes) * Nettoyage (cleaning of sewer pipes) * Entretien (maintenance and inspection of sewer pipes) * Vidange (complete emptying of wastewater sewer pipes) * Assainissement (complete wastewater disposal and cleaning) The company offers these services to private households, companies and public institutions, using modern technologies and environmentally friendly methods to clean and maintain the sewer pipes.

Canal Pro Sagl 

Quartino · Since 2014

The core activity of Canal Pro Sagl is the cleaning, maintenance and repair of sewer systems, wastewater pipes and other underground pipelines. This includes in particular: high-pressure cleaning of sewer systems and pipelines, video inspections of pipelines and sewer systems, rehabilitation and renovation of damaged or clogged pipelines, flushing of wastewater pipes and sewage, clearing of clogged pipelines and sewer systems, and maintenance and repair of sewer systems and wastewater pipes. The company offers these services 24 hours a day, 7 days a week and works with both private customers and companies as well as public institutions.

Canplast SA 

Villars-Ste-Croix · Since 1987

The company offers solutions for water management, particularly in the field of wastewater treatment and pre-treatment. It provides products and services for various industries, including car body shops, gas stations, industry, workshops, and construction sites. The core activities include on-site installation of equipment, maintenance services, and technology transfer. Specific products and services include: wastewater pre-treatment, oil separators, coalescence filters, grease separators, fat degradation by Biofood, septic tanks, drainage shafts, pump shafts, individual micro-treatment plants, pre-treatment of industrial wastewater, treatment of construction site wastewater, and gypsum/color filters. The company thus provides comprehensive solutions for the treatment and pre-treatment of wastewater in various industries.

Capacity-Building Resource Exchange CAPRESE Sàrl 

Aubonne · Since 2009

The core activity of CAPRESE is to provide services in the field of sustainable development, organizational development, and executive development. These services include: strategy development and implementation, leadership development and coaching, capacity building and development, project management and implementation, sustainability consulting and development, conducting workshops and seminars, and developing and implementing sustainability strategies. The company offers these services to support organizations and individuals in implementing changes and strategic initiatives that have a positive impact on the environment and society.

Capital 2050 SA 

Geneva · Since 2016

The core activity of Capital 2050 SA is the development and structuring of sustainable and low-carbon investment opportunities, particularly in the areas of: * Renewable energies (photovoltaics and wind farms) * Logistics (trade, shipping and infrastructure) * Sustainable agriculture * CO2 emission compensation and trading * Impact and sustainability consulting for companies and investors. The company also offers services such as the development of investment opportunities in renewable energies, the implementation of ESG and sustainability strategies, and the management of carbon credits.

carbonbreak, Yvan Bucciol 

Pully · Since 2006

The company provides consulting services in the areas of sustainable urban planning (urbanism), risk management, energy efficiency and climate change. The focus is on supporting companies and public institutions in implementing sustainable strategies and minimizing risks related to climate change. The founder, Yvan Bucciol, is an independent consultant with many years of experience in these areas.

Carbon Circle AG 

Zurich · Since 2018

The core activity of Carbon Circle AG is the promotion and dissemination of knowledge about biochar and its application in the circular economy, particularly in the field of negative emission technology. This includes initiating and developing projects, networking interested parties, matching demand and supply in the biochar sector, advising institutions on net-zero and circular economy, as well as organizing events and conferences.

CarbonOcean International AG 

Wollerau · Since 2018

The core activity of CarbonOcean AG is the development of technologies for the effective extraction of CO₂ from seawater and its use as a raw material to create sustainable solutions for a climate-neutral CO₂ circular economy.

Carbon Standards International AG 

Frick · Since 2021

The core activity of Carbon Standards International is the development and implementation of standards and system solutions for climate-positive agriculture, forestry and industry, particularly in the area of carbon sequestration and sinks. The company develops and certifies products and processes that contribute to reducing greenhouse gases and cooling the climate. This includes, among other things, the development of standards for biochar, carbon sinks and global cooling, as well as the provision of online tools and certification programs.

Carl Franke AG 

Rorschach · Since 1980

The core activity of Carl Franke Haustechnik AG is the planning and execution of building technology in residential and commercial construction, including: Heating: design, estimation, installation of heat generators and distribution systems Sanitary: planning and execution of water, gas, compressed air and chemical lines, swimming pools and laundry drains Industrial piping: construction of industrial and commercial piping, cooling basins, transport lines and house connections Liquefied gas: inspection and installation of liquefied gas systems Solar systems: neutral design and estimation of solar systems The company also offers services such as cost estimates, scheduling and coordination with subcontractors.

CARLINE Sàrl 

Le Locle · Since 2012

The core activity of Carline SÀRL is to provide consulting and research services in the field of nature, biodiversity and environment. In particular, the focus is on expertise in flora, aquatic invertebrates and natural habitats.

Carousel Finance SA 

Geneva · Since 2005

The core activity of Carousel Finance SA is to provide infrastructure and financing solutions for the responsible use of natural resources in emerging and developing countries. The company focuses on developing projects that valorize local resources, minimize debt, promote technology transfer, and provide training for the local population. This is a form of public-private partnership model, where the company works with local partners to develop and operate infrastructure projects.

Casanova Biotech GmbH 

Küssnacht Am Rigi · Since 2008

The core activity of Casanova Biotech GmbH is the development and application of biological solutions for wastewater treatment, particularly for the biological degradation of odors and the improvement of the utilization of manure and slurry.

Casa-technica.ch Landolt Gebäudetechnik AG 

Näfels · Since 2001

The company "casa-technica.ch – Landolt Gebäudetechnik AG" offers a wide range of services and products in the field of building technology and envelope. The core activities include: Building envelope: roof, façade, sheet metal work, photovoltaics and building renovation; Building services: plumbing, ventilation, bathroom renovation and conversion, wellness and bathroom conversion; Rental of cranes and telehandlers; Sale of sheet metal through the platform "bestell-dein-blech.ch". The company thus offers a comprehensive range of services and products for the planning, execution and renovation of buildings and their technical systems.

Catech - Capella Technologies 

Brione Sopra Minusio · Since 2008

The core activity of CATECH is the planning, installation and maintenance of solar systems, as well as the provision of services in the field of renewable energies. The company offers comprehensive solutions for the realization of solar projects, including project development, procurement of materials, installation and maintenance of systems. In addition, CATECH also provides services such as obtaining permits and performing maintenance work.

Caterra AG 

Glattpark (Opfikon) · Since 2023

The core activity of Caterra is the development and application of autonomous laser weed control technology for ecological precision agriculture.

cbsolar ENGINEERING Sàrl 

Vallamand · Since 2011

The core activity of cb solar Engineering Sàrl is the planning, construction and marketing of solar systems, in particular photovoltaic systems, for private and possibly also commercial customers in Switzerland.

cbswasser ag 

Sommeri · Since 2012

The core activity of cbswasser ag is the manufacture and distribution of water treatment products, particularly water filters, water softeners and decalcification systems, which are designed to clean and soften water in order to prevent damage to household appliances and pipes.

C & D Chapuis S.à r.l. 

Courtemaîche · Since 1993

The core activity of C & D Chapuis Sàrl is the execution of drainage and cleaning works, including: * Draining of pits (septic tank, grease trap, oil separator, mini step, etc.) * Dry suction (wood shavings, pellets, ashes, sand, gravel, etc.) * Hydrodynamic and electromechanical cleaning * Sweeping * Washing of roads, bridges and tunnels * Wastewater treatment * Pipeline inspection by camera. The company also offers a contract for regular maintenance and upkeep of sewer systems, grease separators and lifting stations to prevent problems such as clogged sewers, unpleasant odors and flooding.

CE Concept Energy AG 

Roggwil Tg · Since 2018

The company's core activity is the planning, installation and maintenance of energy solutions, particularly in the field of renewable energies, such as photovoltaic systems, battery storage and charging infrastructure for electric vehicles, as well as electrical services and energy management for private households and businesses.

CEEX AG 

Zurich · Since 2021

The core activity of CEEX is the intelligent optimization of network, energy and system services, particularly through the development and application of AI-based forecasting and optimization algorithms for the energy industry. This includes the areas of: * Load forecasting and energy flow optimization * Network congestion management and voltage overload * Integration of renewable energies and flexibility management * Local resource utilization and grid stabilization * Dynamic pricing and dispatch management * Decentralized flexibility and power community The company offers solutions for the energy industry to master the increasing complexity and shape the energy future efficiently, stably and sustainably.

CellX Biosolutions AG 

Schlieren · Since 2024

CellX Biosolutions AG develops biological processes that use bacteria to degrade chemical pollutants. The company identifies, optimizes and scales bacterial communities for treating industrial wastewater and contaminants such as PFAS, pharmaceutical active ingredients, agro-chemicals and microplastics, and applies microfluidics and robotics in its biodiscovery and scale-up workflow.

CELTOR SA 

Tavannes · Since 1977

CELTOR SA provides waste management and disposal services, including public waste collections, intercommunal recycling centres (déchèteries), composting, storage of incineration residues (mâchefers), metal separation (déferraillage), and the packaging/conditioning of incinerable and inert materials.

CEMeco Célien Montavon 

Bassecourt · Since 2021

The core activity of CEMeco is the conservatory management of marshes and peat bogs, i.e. the preservation and management of moors and wetlands in Switzerland.

Ceni Ablauf- und Rohrreinigung GmbH 

Malters · Since 2018

The core activity of Ceni Ablauf- und Rohrreinigung GmbH is the provision of services in the field of sewer and pipe cleaning, including sewer TV, sewer rehabilitation, tightness testing and suction work. The company offers these services as a full-service provider, from consulting to planning and execution.

cen services GmbH 

Brig · Since 2022

The core activity of cen services encompasses two main areas: 1. **Cleaner Production and Energy Efficiency**: The company provides consulting services in the field of resource efficiency, environmental education, and circular economy. It supports SMEs in conducting sustainability analyses, cost optimization, and implementing environmentally friendly production processes. 2. **Non-Profit Management**: cen services provides services for non-profit organizations in the areas of business management, marketing, communication, and project management. It supports consulting on building and changing organizational structures, strategies, and volunteer management.

Centratech Sàrl 

Orbe · Since 2023

CERES-CERT AG 

Frick · Since 2022

The core activity of CERES is the inspection and certification of environmental standards, particularly in the areas of: Organic food, Sustainable textiles, GLOBALG.A.P., Food sustainability, and Climate and environmental standards. The company offers certification services for various product categories, including: Organic food (e.g. Bio Suisse, Bioland, EU-Bio), Sustainable textiles (e.g. GOTS, OCS, RCS), and Climate and environmental standards (e.g. CO2-Land, EBC, Global Artisan). CERES has branches in Germany and Switzerland and offers its services internationally.

CHABLAIS SERVICE PROPRETE CH SARL 

Le Lignon · Since 2012

The core activity of CSP Environnement is the provision of services in the field of road cleaning, environmental protection and waste management in Switzerland, particularly in the Romandy region. The specific activities include: road cleaning (road sweeping), high-pressure road cleaning, container cleaning and disinfection, suction and excavation work, rental of thermally insulated containers, lime milk spreading, and material transportation. The company offers these services to both private and public clients in Switzerland.

Chaleur Solaire Guy Dafflon 

Vuisternens-En-Ogoz · Since 2015

The core activity of Sebasol is the conception, promotion and support of solar thermal systems for hot water preparation and building heating. The company offers training and consulting services for self-builders and also installs solar thermal systems. Additionally, it develops and experiments with new systems and applications for solar thermal energy.

Chapuis & Zürcher AG 

Bern · Since 1980

The core activity of Chapuis + Zürcher AG is the provision of services and solutions in the fields of sanitary technology, heating technology, plumbing, roofing and solar energy. Specifically, this includes the planning, installation, maintenance and repair of: sanitary facilities (bathroom, kitchen, water treatment, gas), heating systems, plumbing work, roofing, photovoltaic systems and solar thermal systems. The company also offers an emergency service for sanitary and heating systems and operates a sales outlet for sanitary materials.

Chauffage à distance Basse-Areuse S.A. CAD 

Colombier Ne · Since 1985

Chauffage à distance Basse-Areuse S.A. CAD operates a district heating network that recovers waste heat from a waste incineration plant and distributes it via buried hot-water pipes to buildings. The company supplies buildings in the municipalities of Milvignes, Boudry and Cortaillod and uses service providers such as Viteos for customer service and technical operations.

Christen Bedachungen/Fassadenbau AG 

Rüegsauschachen · Since 1995

The core activity of Christen Bedachungen/Fassadenbau AG encompasses the planning, consulting and realization of various works in the field of building envelopes, particularly: roofing (pitched roof, flat roof), facade construction, PV systems (photovoltaic systems), scaffolding, maintenance work, thermal insulation, and skylights. Additionally, the company offers a regular roof inspection service to identify and address potential issues early on.

Christen Energie AG 

Luthern · Since 2016

The core activity of Zürichsee Solarstrom AG (ZSSAG) is the planning, installation, commissioning and operation of photovoltaic systems (PV systems) for energy generation through solar power. In addition, the company also offers services such as consulting and operation of PV systems, including the assumption of roof usage rights and the compensation of energy yields (ZEV).