Energy & Environment

DEISS AG 

Kaiseraugst · Since 2018

DEISS AG produces and supplies refuse sacks, bin liners, protective films and non-woven covers for professional use. The product range also includes compostable bags, aprons, gloves (Bingold) and sustainable lines using recycled materials and certified options.

Dekonta AG 

Ruswil · Since 2006

The core activity of DEKONTA AG is the professional remediation of contaminated sites, particularly the removal and disposal of pollutants such as asbestos, PCB, toxic substances and mold in buildings and other facilities in German-speaking Switzerland.

Delfino Holding SA 

Lugano · Since 2018

The core activity of Delfino Holding SA is the marketing and distribution of products and systems for renewable energies, particularly: professional heat pumps for heating, air conditioning and hot water preparation, all-in-one systems for photovoltaics and charging stations, and high-performance batteries for storing solar energy. The company positions itself as an importer and distributor of renewable energy products in Switzerland.

Delta Capacity AG 

Oberägeri · Since 2023

The core activity of Delta Capacity is the development, acquisition and management of projects in the field of battery energy storage systems (BESS) and intelligent charging technology, particularly for electromobility and renewable energy. The company offers tailored solutions for the electrification of events, the provision of mobile charging solutions and the optimization of energy consumption.

Delta Solar GmbH 

St. Margrethen Sg · Since 2000

The core activity of Delta Solar GmbH is the development and manufacture of heat technology products, in particular various types of storage tanks and boilers, such as standard boilers, high-performance boilers, layer charging storage tanks, energy-saving boilers, buffer storage tanks, combination storage tanks and electric boilers.

Demat JB SA 

Tavannes · Since 1995

Demat JB SA is managed through a partnership with Celtor; Celtor handles the receipt, management and resale of mineral construction-site waste. After sorting, crushing and sieving according to environmental standards, the mineral waste is processed and sold for reuse in construction and civil engineering (e.g. gravel substitute, backfill, road sub-bases, temporary tracks), subject to use restrictions.

De Molfetta Strode Sagl 

Lugano · Since 2022

The core activity of De Molfetta Strode is landscape architecture, particularly the planning and design of environmentally friendly projects, such as parks, playgrounds and other public spaces, with a focus on ecological sustainability and the creation of immersive sensory environments.

Deploy Swiss Tech AG 

Stans · Since 2021

Deploy Swiss Tech AG distributes the FEEL X® product line and supplies environmentally degradable de-icing and frost-protection additives in granular and liquid forms. The products are used by municipal and urban winter services and for agricultural frost protection; the website provides technical data, dosing guidance and ISO 9001/14001 certificates.

Deponie Freiamt AG 

Merenschwand · Since 2003

The core activity of Deponie Freiamt AG is the management and operation of landfills, in particular the disposal and recycling of waste, as well as the rehabilitation and renaturation of landfill sites.

Deponie Edelmann GmbH 

Mauren Tg · Since 2020

Deponia e Tgava Artgaz GmbH 

Salouf · Since 2016

The core activity of Deponia e Tgava Artgaz is the operation of an inert waste and excavation landfill, as well as the recovery and sale of foundation materials and biomass products, such as dried and sieved wood chips, animal bedding and composted soil.

DePoly SA 

Sion · Since 2020

The core activity of DePoly is the development and implementation of technologies for processing and utilizing plastics, particularly in the field of chemical recycling technologies. The company focuses on scaling and implementing these technologies at an industrial level to enable sustainable and efficient utilization of plastics.

Deponie Obwalden AG 

Kerns · Since 2012

The core activity of Depo­nie Obwal­den AG is the professional disposal of waste, in particular excavation material, inert materials, wet and dry materials, as well as sludge. The company provides waste disposal services and operates a landfill where the waste is disposed of.

Deponie Spitol AG 

Nesslau · Since 2010

Deponie Spitol AG operates the Spitol landfill and arranges deliveries and site operations through designated contact points. The website lists the acceptance office (Büro Grob Kies AG) and named site contacts, such as site warden Philip Harder and operations manager Guido Odermatt, including phone numbers and email addresses.

Deponie Leigrueb AG 

Lufingen · Since 2007

The core activity of DHZ AG is the disposal and recycling of waste, in particular through the operation of landfills and the processing of materials to recover valuable resources and return them to the material cycle. This also includes logistics and infrastructure services as well as the development of sustainable solutions for the environment.

Deponie Vorderland AG 

Rehetobel · Since 2007

The core activity of Deponie Vorderland AG is the disposal and landfilling of inert waste, including non-recyclable mineral construction waste, industrial waste with inert material quality, and uncontaminated excavation material that cannot be otherwise utilized.

Desa Epalinges SA 

Epalinges · Since 1994

Desa Epalinges SA provides waste management and recycling services, operating recycling centres (déchetteries) and a mobile collection service. It serves municipalities, households and businesses and provides information on tariffs and home collection.

d-fine AG 

Zurich · Since 2010

The company provides consulting and management services to various industries, including energy, industry, healthcare, finance, and the public sector. The company's core activity is supporting businesses in implementing sustainability strategies, developing sustainable products, and complying with regulatory requirements. This includes implementing sustainability management systems, conducting climate risk analyses, and integrating sustainability into business models.

DF-Insta Haustechnik GmbH 

Dulliken · Since 2018

The core activity of DF-Insta Haustechnik GmbH is the planning, installation and maintenance of building technology systems, particularly in the areas of heating, plumbing, solar and controlled residential ventilation systems. The company also offers repair and renovation services and works in a network with trade partners to provide a comprehensive range of services.

Diagonal Swiss Sàrl 

Courtedoux · Since 2015

The core activity of Diagonal Swiss is the planning, installation and maintenance of photovoltaic systems, as well as the provision of services in the field of roof renovation and sealing, including sheet metal work, waterproofing and insulation. The company offers tailored solutions for private and business customers to promote their energy independence and reduce their energy costs.

Dialog N GmbH 

Uster · Since 2016

The company's core activity is the implementation of research projects, evaluations and communication projects at the interface of humans and the environment, particularly in the field of Education for Sustainable Development (ESD) and environmental communication. This includes the development and implementation of projects that focus on promoting sustainability-related behaviors, researching environmental topics and communicating environmental information.

Dialog Umwelt GmbH 

Biel/Bienne · Since 2007

The core activity of dialog:umwelt is the provision of services in the fields of environment, communication and corporate consulting.

Diego Fischer Solar and Engineering 

Neuchâtel · Since 2014

Diego Fischer Solar and Engineering provides planning, consulting and turnkey installation of photovoltaic systems and related equipment such as battery storage, electric vehicle charging stations and surplus energy management solutions.

Diemer Sustainability Consulting GmbH 

Bänk (Dägerlen) · Since 2019

The core activity of Diemer Sustainability Consulting is to advise and support companies, non-governmental organizations (NGOs) and public institutions in the areas of sustainability, accountability and environmental protection. Specifically, this includes the development and implementation of sustainability standards, the implementation of monitoring and evaluation projects, as well as the creation of reports and communication strategies. The company also supports the selection and implementation of certification systems and helps navigate complex regulatory requirements.

DIENSTLEISTUNGEN VARGA 

Basel · Since 2009

DIENSTLEISTUNGEN VARGA provides construction, landscaping and cleaning services as well as clearances, disposal, caretaking, removals and transport. Services listed on the website include wall demolition, plumbing and concreting, construction/final cleaning, garden maintenance and furniture moving.

DILECA 

Affoltern Am Albis · Since 2019

The core activity of DILECA is the provision of services and goods in the field of municipal waste management and fire police. Specifically, this includes: waste bag disposal, animal carcass disposal, fire police inspections, waste advice and education, waste separation and disposal, and special waste disposal. DILECA is thus a company specialized in waste disposal and environmental protection in the areas of waste and fire police.

Dionea SA 

Locarno · Since 1988

The core activity of Dionea SA encompasses consulting and planning in the fields of environment, territory, nature and landscape, particularly in the following areas: environmental consulting and planning, territorial planning and development, nature conservation and management, landscape planning and design, and forestry and forest management. The company offers services such as the creation of plans and strategies for the sustainable development of territories, the implementation of environmental studies and analyses, the planning and implementation of nature conservation projects, and the consulting of municipalities and other institutions on environmental and territorial planning issues.

Dipan SA 

Nyon · Since 2011

The core activity of DIPAN is the development and application of solutions for the global management of your real estate portfolio, particularly in the field of water and hydraulic technology. This includes: Diagnostic and treatment of hydraulic systems (Hydrodiag); Development and application of GreenTech solutions for the sustainability and safety of buildings; Provision of products and services to prevent problems such as rust, lime and bacteria in hydraulic systems; Research and development in partnership with scientific institutions to improve solutions for water and hydraulic technology.

DiZtribution GmbH 

Niedergösgen · Since 2024

DiZtribution GmbH distributes sustainable beverages and food products. The company provides distribution services for beverage and food brands.

DJO-Energies Sàrl 

Cheyres · Since 2023

The core activity of DJO-Energies is the planning, implementation and installation of photovoltaic systems, in particular solar panels and related infrastructure, to support private and commercial customers in the implementation of projects in the field of renewable energy.

dk Haustechnik GmbH 

Thayngen · Since 2012

dk Haustechnik GmbH specialises in sanitary installations, heating, solar and climate systems, providing planning, installation and maintenance services. The company operates a 24-hour emergency on-call service across its business areas.

DMD Green Capital AG 

Meisterschwanden · Since 2022

The core activity of DMD Green Capital AG consists of the acquisition, planning and implementation of solar and wind projects in the field of renewable energies, as well as the brokerage of investment opportunities in these projects for investors.

DOLEFAR SA 

Denges · Since 1989

The core activity of Dolefar SA is the planning, installation and maintenance of renewable energy systems, particularly: solar energy (solar panels), heat pumps and water softening systems. The company also provides consulting services for the energy renovation of buildings and supports customers in applying for subsidies for energy-related measures.

Dona Bertarelli Philanthropy 

Gstaad · Since 2016

The company's core activity is philanthropy, particularly in the areas of environmental protection, nature conservation and marine conservation. The company supports various projects and initiatives to protect the global environment and preserve biodiversity.

Dorfbrunnengenossenschaft Dagmersellen 

Dagmersellen

The core activity of PRINTEX AG is not water supply, but rather the realization of websites and other digital solutions, as evident from the first two sections, which mention the "realization" by PRINTEX AG. The core activity of Dorfbrunnen Genossenschaft Dagmersellen is water supply, including ensuring drinking water, providing fire-fighting water, maintaining and expanding facilities and pipeline networks, as well as ensuring water quality.

Dorfgenossenschaft Schwyz 

Schwyz

The core activity of Dorfgenossenschaft Schwyz (DGS) is the safe and efficient water supply for the municipality of Schwyz. This includes the extraction, treatment and distribution of drinking water, as well as the maintenance and upkeep of the necessary infrastructure such as pipes, drinking water power plants and reservoirs.

Dorfstrom AG 

Buttisholz · Since 2024

DoubleA Solutions GmbH 

Grenchen · Since 2025

The core activity of DoubleA Solutions GmbH is the development and provision of solutions in the field of renewable energy (solar) and information technology (IT). Specifically, this includes the planning, installation and optimization of solar systems as well as the provision of IT services aimed at supporting companies in the digitization and optimization of their processes.

Doveron AG 

Thayngen · Since 2010

The core activity of Doveron AG is the development, manufacture and distribution of machines for weed control and elimination, particularly ecological solutions such as the iProGreen machine, as well as other machines such as bending machines and steam cleaning devices under the brands iProGreen, iProTech and Lumag.

down to earth Permaculture, Marcus Pan 

Feldbach · Since 2019

The core activity of the company 'down to earth' is the mediation and implementation of permaculture concepts through consulting, planning, training and coaching. The company offers online and live courses, workshops, books and projects to support people in shaping their lifestyle and environment in a sustainable way. The activities also include the design and implementation of permaculture systems, coaching and the organization of events.

down to earth PERMACULTURE FOUNDATION 

Feldbach · Since 2023

The core activity of the company 'down to earth' is the promotion and implementation of sustainable and regenerative permaculture systems, particularly through consulting, design and education in the fields of agriculture, garden and living space design. The company supports individuals and businesses in planning and implementing future-proof and stable ecosystems that are both ecologically and socially sustainable.

DransGrid SA 

Orsières · Since 2016

The core activity of DransGrid is the management and operation of electrical distribution networks in the municipalities of Orsières, Liddes and Bourg-St-Pierre in Switzerland. This includes ensuring a safe, efficient and reliable power grid for consumers in these regions.

D.R. der Recyclist GmbH 

Engwang · Since 2022

The core activity of the company 'Der Recyclist' encompasses the following services: Metal and material disposal and recycling, Household and business inventory removals and relocations, Collection of metal and other materials, Special orders such as tank dismantling and non-cuttable material, Final cleaning of rooms after removals and relocations, Household and business dissolutions, including disposal and recycling of furniture and personal items. Overall, the company focuses on environmentally friendly disposal and recycling solutions as well as removals and relocations.

Drive Impact Sàrl 

Lausanne · Since 2023

Drive Impact Sàrl provides analysis and decision-making support to reduce environmental impacts. The company conducts life-cycle assessments, builds emission-factor databases and develops tailored projects for supply-chain decarbonization, including work for the humanitarian sector.

Dr. Nabinger Consulting 

Stans · Since 2007

The core activity of Dr. Nabinger Consulting is the consulting and support of customers in the areas of environmental technology, occupational safety, health protection, hazardous materials and hazardous substances management. The company offers specialized services such as hazardous substances management, occupational safety, immission protection, disposal and management systems to support customers in complying with environmental and safety standards.

Drohnen-Netz Ackermann 

Rheinau · Since 2024

The core activity of DrohnenSolarService is the provision of drone-based services for the energy and building technology sector, particularly in the areas of: thermal imaging and energy diagnostics for solar systems, single-family homes, multi-family homes, district heating networks and industrial buildings; drone photogrammetry and 3D building surveys for architects, real estate, construction documentation and owner accompaniment; inspections and checks of solar systems, district heating networks and buildings using drones; and aerial rescue operations, including fawn rescue and veterinary medicine. The company also provides price lists and quote requests for these services.

Drohninvest GmbH 

Stäfa · Since 2021

The core activity of Drohninvest GmbH is the application of drone technology for innovative solutions in the field of agriculture and viticulture, particularly in crop protection. The company offers services such as efficient monitoring and analysis of fields, precise crop protection solutions, and customized drone solutions for agricultural processes. The focus is on supporting winegrowers and farmers in the region around Lake Zurich and in Stäfa.

Drosera Ecologie Appliquée SA 

Sion · Since 1995

The core activity of Drosera écologie appliquée SA is environmental consulting and research, particularly in the following areas: environmental impact assessments (EIA) and environmental monitoring of construction sites (SER), soil protection on construction sites, studies and expert opinions related to soil protection (SDA, erosion, pollution, agrology), watercourses and hydroelectricity, contaminated soils, materials and sites, environmental education and scientific research. The company thus provides environmentally related services, such as environmental impact assessments, soil protection measures and research in the field of environmental sciences.

DSW Sachwerte AG 

Freienbach · Since 2010

The company DSW Sachwerte AG offers investment opportunities in walnut trees grown on sustainably managed plantations. The core activity of the company is to provide investors with the opportunity to purchase and own walnut trees, while the company itself takes care of the management and maintenance of the trees. Investors receive a proportionate share of the revenue from the sale of the walnuts, thus benefiting from the fruits of their investment.

DT INTERNATIONAL SA 

Geneva · Since 2004

The core activity of DTI-Energies is the conception, implementation and maintenance of public and professional outdoor lighting infrastructures, primarily powered by solar energy.