Energy & Environment

Kraftwerk Täschbach AG 

Täsch · Since 1996

The core activity of the company is the management and organization of the municipality of Täsch, including the provision of services, information and resources for citizens, such as education, social affairs, environment, safety, administration and finance.

Kraftwerk Trempel AG 

Krummenau · Since 1993

Kraftwerk Trempel AG operates a hydropower plant and manages a former textile factory converted into a commercial and cultural centre. The plant has an installed capacity of 1,800 kW, produces about 8 million kWh annually using two Francis turbines, and feeds its electricity into the national grid.

Kraftwerk Urnäschtobel AG 

Urnäsch · Since 1995

Kraftwerk Urnäschtobel AG operates a small hydropower plant that converts flowing water into renewable electricity. The facility has an installed capacity of more than 300 kW and typically generates about 1.7 million kWh per year; the catchment area is roughly 63 km², with an average turbine flow of 2.85 m³/s and a mandated residual flow of 240 L/s.

Krannich Solar AG 

Spreitenbach · Since 2013

The core activity of Krannich Solar International is the distribution of solar products and solutions on a global scale, with an extensive network of websites and shops in various countries and regions, including Africa, Asia, Europe, Latin America and North America.

Kraut + Quer GmbH 

Zurich · Since 2017

The company Kraut + Quer specializes in sustainable urban green interventions, particularly in the planning, implementation, and maintenance of gardens, green spaces, and habitat sculptures in urban areas. The core activity involves designing and implementing projects that aim to bring nature into the city and improve people's quality of life through green oases. This also includes conducting workshops, courses, and events that raise awareness about the importance of nature and the environment and encourage people to take action.

Krieg Haustechnik GmbH 

Wangen Sz · Since 2013

The core activity of Krieg Haustechnik GmbH is the planning, execution and maintenance of building technology systems, particularly in the areas of heating, plumbing and bathroom renovation. The company offers comprehensive solutions for new construction, renovation, renovation and modernization of building technology systems and has a wide range of services, including installation, service and maintenance.

KRT Engineering & Consulting GmbH 

Magden · Since 2021

KRT Engineering & Consulting GmbH operates local electricity communities (LEG) and implements regional photovoltaic installations. The company coordinates production and local distribution of solar power, often using battery storage for supply security, issues billing based on smart‑meter data, and enables participation by both producers and consumers.

Krüsi Sicherheits- und Solartechnik 

Embrach · Since 2002

The company's core activity is the installation and distribution of solar systems and related components such as photovoltaic modules, inverters and solar storage systems.

Krüsi Umzüge & Transporte GmbH 

Kollbrunn · Since 2017

The core activity of Krüsi is the execution of clearings, in particular of apartments and houses, as well as the transportation and disposal of furniture and other objects. This also includes special services such as room cleaning and the donation of unsold items to charitable organizations.

KS-net AG 

Baar · Since 1999

KS-net AG provides conception, consulting, planning, supervision and implementation services for projects that recover energy from waste and renewable resources. Its offering includes pyro-gasification and wood-gasifier systems, thermal sewage‑sludge treatment and syngas utilization, agricultural and industrial biogas plants, water and sediment remediation, membrane/RO water treatment, and application/system integration.

KTK Swiss Energy AG 

Vorderthal · Since 2023

The core activity of KTK Swiss Energy AG is the installation and financing of photovoltaic systems on the roofs of private individuals and companies, with the aim of promoting sustainable energy supply in Switzerland. The company finances the systems and offers roof owners the opportunity to benefit from rental income or discounted electricity.

Küenzi & Co. AG 

Münchenbuchsee · Since 1975

The core activity of Küenzi & Co AG is the planning and execution of building technology services, particularly in the areas of: sanitary installations, heating systems, plumbing work, and repair and maintenance services. The company also offers specialized services such as bathroom renovations, water connections, heating system construction, solar systems, pellet and wood heating systems, as well as rainwater utilization and water supply.

Küffer AG 

Tafers · Since 1987

The core activity of Küffer AG is the disposal, recycling and reuse of waste and materials, including the provision of waste management services such as skip rental, transportation and demolition, as well as the sale of recycled materials and household plastics.

Kuhrerhof AG 

Chur · Since 2020

The core activity of Kuhrerhof AG is the agricultural production of dairy and egg products as well as vegetables through climate farming, with a focus on environmental friendliness, animal welfare and regionality.

Kunststoffsammelsack Schweiz GmbH 

Altdorf Ur · Since 2016

The company is engaged in the collection and processing of plastic waste, particularly packaging and other plastic products. It produces mixed plastic plates, which are then further processed into new, sustainable products such as plant boxes, collection boxes and other household items. The company aims to collect, prepare and convert plastic waste into new products, thereby promoting a circular economy.

kuntergrün KlG 

Urswil · Since 2021

The company kuntergrün offers knowledge and services in the field of sustainable living and building. The core activities include: Creating and disseminating content (blog posts, courses, books, events, and consulting) on topics such as sustainable living, building, health, and environmental protection. Conducting workshops, lectures, and individual consulting on these topics. Offering collaborations and partnerships with other companies and organizations committed to sustainability. Managing a member area and sending newsletters with tips and information on sustainable living. The core activity of the company is education and consulting in the field of sustainability.

Kuoni STORAGE & RECYCLING GmbH 

Urdorf · Since 2020

The core activity of Kuoni STORAGE & RECYCLING GmbH is the storage and disposal of goods of all kinds. Specifically, the company offers storage spaces for long-term and short-term storage, carries out clearances and disposals for private individuals and companies, and provides recycling services for various materials such as steel, plastic, IT equipment, and document destruction.

KWB Planreal AG 

Widnau · Since 1990

The core activity of KWB Planreal AG is the utilization of secondary raw materials, particularly the collection, processing and recycling of valuable materials such as waste glass, waste paper, waste wood, construction waste, ferrous and non-ferrous materials and other waste into the material cycle, with the aim of sustainable and environmentally friendly waste management and energy generation.

kwick SA 

Locarno · Since 2023

The core activity of kwick energy is the sale of electricity to companies and private individuals in Switzerland. They offer various tariffs and models, including renewable energies, and enable customers to manage their energy contracts online.

kWIQly GmbH 

Niederried B. Interlaken · Since 2008

The core activity of kWIQly is the development and provision of energy management software for companies with multiple locations. This software enables customers to analyze energy consumption and costs, identify and solve problems, and improve energy efficiency. The software offers features such as data analysis, prioritization of problems, filtering and correction of data, as well as the ability to visualize and track energy consumption and costs. The goal is to help companies reduce energy costs and increase their energy efficiency.

KWOG Kraftwerke Obergoms AG 

Obergesteln · Since 2009

The core activity of KWOG Kraftwerke Obergoms AG is the generation of electrical energy through the use of hydroelectric power plants, in particular by harnessing the water forces of the Gerewasser-Gonerli and the Rhone.

KWM Kraftwerk Mühlebach AG 

Engi · Since 2007

KWM Kraftwerk Mühlebach AG is an operator of small hydropower plants producing electricity from run-of-river facilities. It operates two plants: Mühlebach I (3,600 kW, approx. 17.00 GWh/year, Pelton turbine) and Mühlebach II (556 kW, approx. 2.50 GWh/year, flow-through turbine).

KW Siwibach AG 

Eisten · Since 2012

Kystag Montage AG 

Wettswil · Since 1995

labil - Peter Lakerveld 

Seltisberg · Since 2007

The company's core activity is nature conservation and the management of nature reserves, particularly the care and maintenance of the three largest nature reserves in the canton of Basel-Landschaft. This includes organizing guided tours, walks and experience days, enforcing protection regulations, as well as educating and raising awareness among visitors and the public about the importance and value of the nature reserves.

La Boîte Verte Sàrl 

Villars-Le-Terroir · Since 2017

The company "La Boîte Verte" is an office for ecological studies, specializing in the implementation of environmental studies, analyses and projects. The core activities include: Ecological inventory and mapping of habitats and biotopes; Environmental monitoring and surveillance, particularly in the area of nature reserves and projects; Development of management plans for nature reserves and projects; Conducting studies and analyses in the field of ecology, particularly with regard to the conservation and protection of species and habitats; Consulting and supporting authorities, organizations and private individuals in the implementation of environmental projects and initiatives.

LaboSafe SA 

Neuchâtel · Since 2010

The core activity of LaboSafe SA encompasses two main areas: 1. **Industrial Safety**: LaboSafe specializes in the representation and distribution of products for industrial safety, particularly showers and eye washes for first aid use, such as the EyeSpray products. 2. **Water Treatment**: The company offers consulting, design, and installation of systems for the treatment of drinking water, wastewater, process water, and industrial water. This also includes special processes such as the treatment of micropollutants using the MICROZON process.

La Commercé Trading & Trust SA 

Chiasso · Since 2003

The core activity of LA COMMERCÈ TRADING & TRUST SA is the development, production and distribution of water purification and treatment systems, including depurators, water softeners, ozonizers and other products for private and commercial use, with the aim of delivering clean drinking water and protecting the environment.

La Compostière du Gros-de-Vaud Sàrl 

Bettens · Since 2004

La Compostière du Gros-de-Vaud Sàrl provides container, bulk and pallet transport, mechanical chipping of trunks and green waste, and supplies and delivers compost, screened topsoil and wood chips.

Lacpure SA 

St-Sulpice Vd · Since 2008

Lacpure SA provides travel services as well as consulting and management services in the energy sector. Consulting activities include financial leasing advisory, energy management contracts (EMC), energy audits, project design and financing, equipment supply and installation, commissioning, staff training and verification of energy savings.

LAGOSTA SA 

St-Prex · Since 2013

The core activity of LAGOSTA is sustainable aquaculture, particularly the breeding of European lobsters, as well as the development of innovative solutions for the utilization of waste and by-products from aquaculture through integrated multi-trophic aquaculture. Additionally, the company develops marine biotechnology solutions, especially based on chitosan.

La Maison des Energies SA 

Morges · Since 2019

The core activity of the company "La Maison des énergies" is the planning, installation and consulting of solutions for renewable energy and energy efficiency, particularly: * Installation of photovoltaic systems * Heat and cold generation systems (heat pumps, thermodynamic boilers) * Insulation and sealing of buildings * Energy-efficient solutions such as relamping * Energy consulting and analysis (energy balance) * Energy storage * Air conditioning and ventilation of buildings The company thus offers comprehensive solutions for a sustainable and efficient energy supply of buildings.

La Mèche Sàrl 

Noréaz · Since 2021

La Mèche Sàrl is a consulting agency and media platform that supports organisations and individuals in transitioning to more responsible lifestyles and professional practices. Services include sustainability diagnostics and strategy, content creation and distribution, community/social network activities, and the organisation of low‑impact events.

LANDI Jungfrau AG 

Interlaken · Since 2005

The core business of LANDI Jungfrau AG encompasses three main areas: 1. **Agriculture**: Supplying farmers with seasonal and regional production resources, consumer goods, and services, as well as supporting the marketing of their agricultural products. 2. **Retail**: Operating stores (LANDI, TopShop, Prima-Shop) for the sale of food, daily essentials, household and garden items, as well as a sales platform for farm products from members. 3. **Energy**: Operating AGROLA gas stations with offers such as diesel, bio, and liquefied gas, AdBlue, heating oil, wood pellets, and solar energy.

LANDI Luzern-West, Genossenschaft 

Ruswil

The core activities of LANDI Luzern-West are: 1. Agriculture: Supplying farmers with seasonal and regional production means, consumer goods and services, as well as supporting the marketing of their agricultural products. 2. Retail: Supplying people in the region with food and everyday essentials, as well as operating stores and gas stations. 3. Energy: Operating gas stations, including a hydrogen filling station, as well as offering heating oil, wood pellets and solar energy.

Ländle Pellets GmbH 

St. Gallen · Since 2007

The company produces and distributes wood pellets as an environmentally friendly heat source.

Landnetwork GmbH 

Biel/Bienne · Since 2020

The core activity of LandNetwork is to provide consulting and support services for sustainable land use and land management (Land Governance), particularly in the following areas: Implementing projects and studies on sustainable land use and land management; Developing and applying tools and methods for the implementation of projects and studies; Conducting research projects on Land Governance; Providing consulting and support services for the implementation of sustainable development goals, particularly the United Nations' goals. The company operates internationally and has experience working with various regions, including Latin America, the Caribbean, Africa, Asia, and Europe.

Landolt Kanaltechnik AG 

Langenthal · Since 2015

The core activity of Landolt Kanaltechnik AG is the provision of services in the field of pipeline technology, particularly: * Pipeline cleaning * Pipeline television inspection * Tightness testing * Pipeline rehabilitation * Robotic rehabilitation * Inliner rehabilitation * Shaft rehabilitation * Suction work * Surface cleaning * Disposal The company offers these services to customers and specializes in the maintenance and upkeep of pipeline systems.

Landschaft+Ressourcen GmbH 

Attelwil · Since 2014

The core activity of Landschaft+Ressourcen GmbH is the planning, coordination and implementation of projects in the field of natural resources, particularly in the areas of material extraction, recycling and landscape design. This includes: * Planning and supervision of material extraction projects such as gravel extraction, quarrying and landfilling * Planning and realization of recycling facilities such as construction material processing plants, green waste processing plants and bulky waste sorting plants * Planning and realization of plant-based wastewater treatment plants * Conducting environmental impact assessments and creating feasibility studies * Coordinating specialized planners in networked projects and creating building permit documents The company supports its customers from planning to implementation of projects and offers a comprehensive service in the areas of landscape planning, resource management and environmental technology.

Landtwing Telefon und Elektro AG 

Zug · Since 1992

The core activity of Landtwing Telefon und Elektro AG is the provision of services in the fields of electrical engineering, telecommunications and IT. Specifically, this includes: electrical services, renovations and conversions, high-voltage and telephone installations, residential, commercial and office installations, IT cabling, building automation, service and repairs, and planning and execution of projects in the fields of electrical engineering and telecommunications.

LANNUTTI SA 

Plan-Les-Ouates · Since 2013

The core activity of LANNUTTI SA consists of planning, delivering, installing and maintaining water treatment plants and hydraulic pumps, particularly in the fields of wastewater lifting, pressure boosting and water treatment, as well as the maintenance and upkeep of these plants in Western Switzerland.

la Pontia SA 

Château-D'Oex · Since 1996

The core activity of Pontia SA is the production of renewable energy through two main areas: 1. **Hydraulic Energy**: Pontia SA operates a hydroelectric power plant in Château-d'Oex, which produces approximately 2,000,000 kWh of electricity per year. 2. **Photovoltaic Energy**: The company also develops and operates photovoltaic systems, which produce approximately 600,000 kWh of electricity per year. Pontia SA thus focuses on the production of renewable energy through water and solar power.

La Porta GmbH 

Maienfeld · Since 2012

The core activity of La Porta GmbH is real estate and energy consulting.

Lars Schöbitz GmbH 

Zurich · Since 2018

Lars Schöbitz GmbH provides data science training with R and consultancy on city‑wide faecal sludge management, and supports organisations in developing monitoring and evaluation frameworks for sanitation services.

Latitude Durable Sàrl 

Geneva · Since 2018

The core activity of Latitude Durable is to advise and support public and private actors in the planning and implementation of projects in the field of sustainable development, environmental protection, and climate change adaptation. This includes in particular: Expert consulting in the fields of environment, climate change, urban planning, and sustainability; Project management and assistance in project leadership; Organization and implementation of workshops, events, and participation processes; Support in the planning and implementation of sustainable projects; and Consulting in territorial planning and development. The company supports its customers in achieving their goals in the field of sustainable development and environmental protection.

laube-solar GmbH 

Böbikon · Since 2011

The core activity of Laube Solar is the planning, implementation and maintenance of photovoltaic systems, including the use of photovoltaic storage systems. The company offers turnkey solutions for the installation of solar systems on residential and other buildings.

LaZur Energie SA 

Lausanne · Since 2017

LaZur Energie SA is a company specialized in providing renewable thermal energy in Switzerland. The company's core activity includes the planning, construction and operation of infrastructure for the generation and distribution of thermal energy, particularly in the context of energy transition projects.

L'Azuré Sàrl 

Neuchâtel · Since 2024

LEDsafari SA 

Prilly · Since 2016

The core activity of LEDsafari is the development and implementation of educational programs and workshops that focus on conveying knowledge about clean energy and sustainable innovations, particularly through the design and construction of solar LED lamps. The company offers these programs to various target groups, including schools, universities, NGOs, companies and individuals.

LE FOYARD Sàrl 

Biel/Bienne · Since 2010