Energy & Environment

International Foundation for Sustainable and Ethical Evolution 

Interlaken · Since 2012

International Foundation for Sustainable and Ethical Evolution promotes sustainable, ethical and evolutionary thinking and action, and runs community projects and campaigns such as clean‑up events and the "Cycling Against Plastic" initiative while offering speakers and awareness activities.

International Power Invest AG 

Düdingen · Since 2013

The core activity of IPI AG is the development and provision of innovative business solutions in the field of renewable energies, particularly in the areas of: * Renewable energy generation (e.g. wind energy, solar energy) * Energy storage (e.g. battery storage) * Wastewater treatment (e.g. sludge treatment) * Development and provision of innovative technologies and products for a sustainable future. The company focuses on research, development and implementation of solutions that are both economically and ecologically sustainable.

International Recycling and Metal Company SA 

Sion · Since 2012

The core activity of International Recycling and Metal Company SA is the trade and recycling of metals, particularly iron and non-ferrous metals.

Intrevo AG 

Volketswil · Since 2024

Intrevo AG provides professional cleaning services for photovoltaic systems, including solar module cleaning, roof cleaning and weeding, conservatory and forecourt cleaning, and electrical cabinet cleaning. The company uses pure‑water systems without chemicals and specialized brushes, and performs work with trained personnel.

intueri AG 

Zurich · Since 2008

intueri AG offers energy solutions that combine solar electricity with hydrogen storage and provides consulting to achieve an independent power supply for residential and mobile uses.

invotas AG 

Zollikon · Since 2013

invotas AG develops and manages renewable energy and water treatment projects, delivering services from site acquisition and financing to turnkey construction and operational monitoring. The company provides solar and wind contracting, sourcing support in Taiwan and China, and facilitates investor access to sustainable projects.

IONTEC GmbH 

Benken Sg · Since 2007

The company's core activity is the planning, installation and maintenance of photovoltaic systems for private and commercial use, with the aim of enabling customers to use cost-effective solar energy and contribute to environmental protection.

IQ Consult GmbH 

Basel · Since 2011

The Institut Bauen und Umwelt e.V. (IBU) primarily focuses on creating, verifying, and publishing Environmental Product Declarations (EPDs) for construction products. The core activity of the IBU is to support companies in the construction products industry in creating EPDs to promote sustainable building. This includes coordinating EPD verifications, providing an EPD platform, publishing EPDs, and conducting network activities and communication with sustainability experts, policymakers, and standardization bodies.

Isemann - Kuratierte Denkräume 

Wolfhausen · Since 2024

The company provides consulting and strategy development services for businesses, particularly in the areas of sustainability and socio-ecological transformation. The focus is on developing strategies and solutions that integrate ecological, social, and economic aspects while being economically viable. The core activities include: Strategic planning and implementation of sustainability strategies, Development of solutions for agro-ecological development and sustainable value chains, Integration of environmental, social, and governance (ESG) aspects into corporate strategies, Accompanying companies in the implementation of socio-ecological transformations, Development of innovation models for businesses. The company operates according to the Triple Bottom Line model, which promotes the integration of ecological, social, and economic aspects into corporate strategies.

Isler Solar Chlutteri GmbH 

Brunnadern · Since 2023

The core activity of Isler Solar Chlutteri GmbH is the planning, procurement and installation of solar and photovoltaic systems for sustainable and free energy.

ista swiss ag 

Oftringen · Since 1973

The company's core activity is the development and provision of solutions for optimizing buildings in terms of energy efficiency, safety and comfort. This includes the collection and management of data as well as the provision of technologies and services that enable buildings to be made more climate-friendly, safer and more comfortable.

iStrom AG 

Wohlen Ag · Since 2013

The core activity of iStrom AG is the independent procurement of electricity for energy suppliers and network operators. They bundle electricity quantities and procure them under optimal conditions directly on the market, enabling their customers to have efficient and transparent electricity procurement.

ivolt AG 

Diessbach B. Büren · Since 2010

The core activity of ivolt ag is the planning, implementation and optimization of solar systems as well as the integration of energy storage and e-mobility solutions. The company offers various services, including the installation of solar roofs, optimization of self-consumption, visualization of performance data and integration of battery storage systems. Furthermore, ivolt ag supports customers in the implementation of e-mobility projects and offers repair and maintenance services.

iwas-concepts AG 

Ettingen · Since 2001

The core activity of iwas-concepts AG is the development and implementation of innovative recycling solutions, particularly for plastic waste and glass fiber reinforced duroplastics (GFK). The focus is on the reuse and return of these waste products to the material cycle, in order to contribute to the sustainability of the economy and environmental protection.

Jacques Studer ÖkoBüro 

Fribourg · Since 2008

The company ÖkoBüro is a planning and consulting firm specializing in the implementation of concrete measures in favor of nature and biodiversity. The company's core activities include: urban ecology and nature in the settlement area, river revitalizations, agriculture and biodiversity, accompaniment of gravel extraction projects, environmental impact assessments, habitat inventories, creation of biotopes and plantations, nature reserve maintenance, environmental education and courses, and development and design of information materials. The company thus offers a wide range of services focused on promoting and protecting nature and biodiversity.

jaggigroup ag 

Itingen · Since 1998

The core activity of jaggigroup ag includes the planning, installation and maintenance of electrical systems as well as the sale of household appliances. Specific services include electrical installations, communication technology, photovoltaic systems, smart home solutions, lighting, security systems and e-mobility solutions.

Jakob Stiefel Technik AG 

Wetzikon Zh · Since 1984

Jakob Stiefel Technik AG provides engineering and plant-construction services for the thermal recovery of waste and biomass based on grate and rotary-kiln combustion systems. The company’s offerings include planning, fabrication and installation of complete combustion plants, components such as bunker doors, waste shears, slag-removal and transport systems, plus control technology and maintenance/service.

Janitsch AG 

Kirchberg Be · Since 2019

Janitsch AG is a building-envelope company specializing in roof work and related services. Offerings include pitched roofs, flat roofs, scaffolding, photovoltaic installations, roof windows, and roof maintenance and repairs for new construction and renovation projects.

Jaschok Solar GmbH 

Arlesheim · Since 2014

The core activity of Jaschok Solar GmbH is consulting, planning and installing solar systems, new heating systems and roof renovations in the field of renewable energies.

Jatropower AG 

Baar · Since 2007

The core activity of JATROPOWER AG is the research, development and marketing of Jatropha products, in particular Jatropha seeds, oil and other derivatives. The company also offers services such as remote site evaluation, plantation profitability assessment and plantation management support. Furthermore, JATROPOWER AG is active in the development of certifiable CO2 removal processes.

JBMC AG 

Gisikon · Since 2021

JBMC Inc focuses on the development and distribution of sustainable environmental technologies, particularly in the areas of agricultural photovoltaics, vehicle, process and energy technologies. The emphasis is on meeting customer needs in agriculture and related industries with high-quality and energy-efficient solutions.

JDPS Sàrl 

Crissier · Since 2022

JDPS Sàrl provides IT services for private clients and SMEs, covering computer repair and support, systems engineering, web development and the sale of IT equipment. Its services also include data backup and cloud solutions, SEO, telephone support, on‑site repairs and mobile device repair.

Jemani Blue AG 

Münchenstein · Since 2014

The core activity of JEMANI BLUE AG is the development, manufacture and distribution of modular shower systems for various needs and budgets. The products are energy and water saving, environmentally friendly and durable. The company also offers personalized solutions by offering shower systems with the customer's logo and adapting the products to the specific needs and regulations of different markets.

Jenal & Partners Biosafety Consulting GmbH 

Rheinfelden · Since 2025

The core activity of Jenal & Partner is consulting and supporting biological risk assessment and management, particularly in the areas of biosafety and biosecurity. The company offers solutions and expertise in biological risk assessment, biosafety, biosecurity and communication to promote the positive impact of biotechnological advancements on society.

Jensolar GmbH 

Jens · Since 2022

The core activity of Jensolar GmbH is the planning, installation and maintenance of photovoltaic systems (PVA) on rooftops of properties, as well as the rental of these surfaces and the associated energy cost optimization.

JetPro Europe AG 

Stans · Since 2008

JetPro Europe AG offers the JetPro Diesel Booster, a device for thermal and physical pre-treatment of diesel fuel intended to improve fuel efficiency and emissions performance. The website explains the system expands and preheats fuel and passes it through a reactor that enriches the fuel with metallic ions, which the company says leads to more uniform combustion, reduced soot and NOx and fuel savings of around 10–15%. The site also refers to DEKRA certification and accompanying test reports and functional evidence for the products.

JinkoSolar (Switzerland) AG 

Zug · Since 2011

The core activity of JinkoSolar is the development, manufacture and distribution of solar panels and energy storage systems for use in various segments, including photovoltaics, utility storage, commercial and private energy storage.

Joch Haustechnik GmbH 

Heimberg · Since 2005

The core activity of Joch Haustechnik GmbH is the planning, installation and maintenance of building technology systems, particularly in the areas of: Sanitary technology, Heating technology (heat pumps, oil heating systems, gas heating systems, wood-fired heating systems), Solar systems, Water softening and boiler descaling, and Chimney stoves. The company also operates an online shop for fittings and appliances, offering special discounts and promotions.

Johannes Studach 

Teufen Ar · Since 2017

The core activity of Johannes Studach Entsorgung & Transporte is the disposal and transportation of goods, particularly the collection and disposal of waste, as well as the operation of a waste disposal park. Additionally, the company offers a skip service, delivering skips to customers, and operates a school bus service.

Josef Bösch GmbH 

Weggis · Since 2004

The core activity of Josef Bösch GmbH is the planning, installation and maintenance of building technology, particularly in the field of sanitary technology.

Josef Egger individuell Heizen 

Gams · Since 1993

Josef Egger individuell Heizen supplies and services heating systems; the website provides information on pellet heating (from simple stoves to automated central pellet systems) and on wall heating.

JP Jonathan Pellegrini 

Balerna · Since 2019

The core activity of Jonathan Pellegrini includes the following services: waste disposal (removal of waste and no longer needed items) for private and industrial customers, goods transportation with vans, waste and packaging collection, winter services (snow removal and salting), metal recovery and trade, and regional moving services.

JR Energie GmbH 

Jonen · Since 2023

The core activity of JR Energie is the planning, implementation and rental/sale of solar power systems. The company offers individual solutions for the installation and operation of solar systems, enabling customers to rent or buy solar power without having to make their own investment.

Juflex-Entstopfungen A. Fierro 

Regensdorf · Since 2011

The core activity of Juflex is the provision of services in the field of sewer cleaning, sewer rehabilitation, sewer inspection, drain cleaning and suction work, including a 24-hour emergency service.

JUH ecoconsulting GmbH 

Bern · Since 2020

JUH ecoconsulting primarily focuses on advising and accompanying construction projects and properties in terms of environmental compatibility, health, and sustainability. The core activities include: Environmental impact assessments and reports, Consulting on indoor climate, building materials, and pollutants, Analysis of building materials and furniture for emissions and health safety, Indoor air measurements and analysis, Consulting and accompanying the planning and implementation of environmentally friendly measures, Quality assurance and monitoring of construction projects in terms of environmental and health aspects.

Junova Ventures AG 

Wollerau · Since 2024

Junova Ventures AG develops and advances large-scale green ammonia projects and provides project development, pre-FEED/FEED and detailed engineering services up to the Financial Investment Decision (FID) stage. Its activities include feasibility studies, concept design, engineering, and arranging renewable energy supply and product offtake for sectors such as maritime shipping, heavy industry and agriculture.

Jura-Energie, Jean Oppliger Sàrl 

Le Cerneux-Veusil · Since 2008

The core activity of Jura-Energie is the production and promotion of renewable energies, in particular through the construction and operation of wind turbines, solar cells and solar collectors as well as wood heating systems.

Juraubek Naturgartenpflege 

Ennenda · Since 2014

The company Juraubek offers services in the field of sustainable garden design and permaculture. The core activities include: planning, consulting, implementation and maintenance of ecologically sustainable and socially responsible projects; design of gardens and living spaces that are both productive and versatile; creation of orchards and production of regionally produced, sustainably produced food; conducting nature experiences, guided tours and workshops for adults and children; consulting and implementation of customized, environmentally friendly and creative solutions for clients. The company focuses on creating sustainable living spaces that harmoniously connect humans and nature.

Just No Waste - Justine Tincq 

Lausanne · Since 2020

The core activity of Just No Waste is to advise and support event organizers in planning and implementing sustainable and environmentally friendly events. This includes assessing the environmental impact of events, developing strategies to reduce waste and greenhouse gas emissions, and implementing solutions for sustainable mobility, nutrition, communication, and resource use. The goal is to support events that are socially and ecologically responsible and make a positive contribution to society.

K2plus Energieberatung GmbH 

Weiningen Zh · Since 2024

K2plus Energieberatung GmbH provides independent energy consulting for private and commercial buildings, identifying savings potential and advising on the optimisation of buildings and operational or production processes. Services include renewable heating, photovoltaics, e‑mobility, lighting technology, preparation of GEAK building energy documents, owner representation and PEIK energy consulting for SMEs.

Kaden und Partner AG 

Frauenfeld · Since 1994

The core activities of Kaden + Partner AG include: 1. Ecology: Ecological consulting services for federal, cantonal, municipal, private companies and landowners, including herpetology and amphibians. 2. IT: Development of software, in particular web, mobile and GIS applications, as well as database and application development. 3. Aerial photography: Drone shots for landscape or object photography. The company thus offers interdisciplinary services that encompass both ecological and technical aspects.

KAGA DEPONIEN AG 

Jaberg · Since 2004

KAGA DEPONIEN AG is a supply and waste-management company for gravel, excavation and inert materials. Its services include production and sale of aggregate and recycling products, acceptance and disposal of materials at an inert-material landfill (Type B) and waste-disposal consulting. The company also provides site maintenance and recultivation services.

KÄLIN ELEKTROTECHNIK 

Einsiedeln · Since 2002

The core activity of Kälin Elektrotechnik is the provision of services in the field of electrical engineering, particularly in the following areas: installation, maintenance and repair of safety technology, including fire alarm and gas warning systems; installation and maintenance of photovoltaic systems; installation and configuration of SmartHome systems; electrical installations for new and renovation projects; and device testing and maintenance. The company offers these services to private and business customers in Switzerland, distinguished by fast and uncomplicated processing.

Kälin Solartechnik GmbH 

Ermatingen · Since 2023

The core activity of Kälin Solartechnik GmbH is the planning, implementation and marketing of photovoltaic systems (PV systems) as well as services in the field of renewable energies, particularly in contracting and energy production. The company also offers products such as metal tiles, blind modules and energy dashboards, and operates a platform for visualizing the current power situation in Switzerland.

KaMa Top Clean Matter 

Adligenswil · Since 2019

The core activity of KaMa Top Clean Matter is the execution of clearings, removals, final cleanings and disposals, particularly in the field of apartment dissolution, with a focus on environmentally friendly disposal and thorough final cleaning.

Kamber Heizungen Sanitär GmbH 

Deitingen · Since 2024

The core activity of Kamber Haustechnik encompasses the planning, installation, repair and renovation of building technology systems, including: heating systems (all systems, such as oil heating, gas heating, pellet heating, etc.); sanitary technology (sanitary appliances, sanitary facilities, bathroom conversions and renovations); roofing and facade work; solar systems (hot water through solar energy); and water pipes (water supply and wastewater disposal). The company also offers consulting, planning and coordination services for complete renovations and refurbishments.

Kamber SE 

Volketswil · Since 2015

The core activity of Kamber SE is consulting, prevention and education in the field of sustainable mobility, particularly in mobility management, fleet management and the efficient networking of modes of transport. The company supports customers in designing, organizing and managing their mobility, with the aim of reducing accidents, increasing efficiency and achieving sustainable success.

Kambium Energie GmbH 

Bassersdorf · Since 2023

The core activity of Kambium Energie GmbH is the distribution and installation of photovoltaic systems, including planning, installation and consulting in the field of sustainable energy generation and savings.

Kampagnerei Trede 

Bern · Since 2017

The company "Büro Albatros" is a political consulting and project management firm specializing in environmental and climate policy. The core activity of the company is to develop and implement political campaigns and projects aimed at promoting sustainability and climate protection.

Kanadevia Inova AG 

Zurich · Since 1995

Kanadevia Inova AG develops and delivers technologies and plants for waste treatment and the production of renewable gases. It provides engineering, construction, operations, maintenance and digital plant-management solutions for waste-to-energy and biogas systems and operates internationally.