Energy & Environment

enerminus Andreas Frölich 

Stäfa · Since 2008

The core activity of enerminus is comprehensive energy consulting and support for companies, projects and institutions, with the goal of promoting and implementing sustainable energy measures. This includes services such as energy planning, monitoring and management, overall analysis, variant studies, project organization, energy procurement, energy cost accounting and troubleshooting. The focus is on developing strategies and solutions for a sustainable energy future, particularly in the field of renewable energies and energy efficiency.

Enerphy Suisse AG 

Zurich · Since 2022

Enerphy Suisse AG provides renewable energy services focused on solar installations, energy management and storage solutions. The company designs and installs photovoltaic systems for residential, agricultural and commercial customers, integrates battery and green-hydrogen storage and supports finance and investment models. It also offers carbon services including emissions quantification, carbon credits, CO2 utilization and geological CO2 storage.

EnerSol Graf AG 

Aadorf · Since 2010

The core activity of EnerSol Graf AG is the planning, consulting and implementation of projects in the field of renewable energies, particularly photovoltaics, energy management, storage and heat/cooling systems. The company offers services such as energy concepts, expert opinions, monitoring and implementation of systems, as well as consulting and planning for the responsible use of non-renewable energy sources.

Enerswiss AG 

Weinfelden · Since 2008

Enerswiss AG provides industrial metrology and technical building energy management services. The company carries out CT-based nondestructive 3D measurements (point clouds, CAD comparison, material inspection) and offers energy audits, system conversions and long-term operation of energy systems, while operating an integrated quality and environmental management system in accordance with ISO 9001 and ISO 14001.

Enfinit Sàrl 

Grand-Lancy · Since 2016

The core activity of Enfinit is to advise companies on the development of sustainable strategies and the implementation of projects in the field of energy transition and sustainability, particularly in the areas of renewable energies, energy efficiency and sustainable transportation systems.

Engadiner Kraftwerke AG 

Zernez · Since 1954

The core activity of Engadiner Kraftwerke AG is the production of electrical energy through the use of hydropower.

Solar Solutions EngCon GmbH 

Kreuzlingen · Since 2020

The core activity of EngCon GmbH is the development, planning, construction and realization of turnkey photovoltaic systems, in particular rooftop and open-space systems in all power classes, as well as the associated services such as project planning, installation, material procurement, construction management and supervision.

ENG, Erneuerbare Energie-Nutzungsgesellschaft AG 

Krummenau · Since 2011

ENG, Erneuerbare Energie-Nutzungsgesellschaft AG plans, constructs and operates hydropower plants. It provides services such as preliminary studies, project planning and permitting, tendering, construction management and commissioning, as well as maintenance, operation and commercial management, with activities mainly in eastern Switzerland.

Engynious AG 

Baar · Since 2001

The core activity of Engynious AG is the planning, construction and maintenance of decentralized renewable energy systems, in particular photovoltaic systems, as well as the provision of services in the field of energy generation and management. This includes the development of projects, the planning and installation of PV systems, the technical and commercial maintenance of plants, the optimization of energy costs and yields, as well as the provision of solutions for the storage and use of renewable energy.

Eniwa Wasser AG 

Buchs Ag · Since 2000

Eniwa Wasser AG operates drinking-water services and feeds untreated groundwater into the distribution network. The company regularly monitors water quality, manages storage reservoirs and provides water connection and maintenance services for house connections, public fountains and hydrants.

ennos ag 

Merzligen · Since 2006

ennos ag designs and manufactures the sunlight pump, a high-efficiency surface solar water pump for smallholder farmers and irrigation applications. The company supplies systems with features such as Pay‑As‑You‑Go and remote monitoring, cooperates with manufacturing partners (e.g. Jain Irrigation, NETZSCH, Innovex) and distributes its products through an international network of dealers.

E-nno Switzerland SA 

Carouge Ge · Since 2017

E-nno Switzerland SA is a company that focuses on integrating technology and data to promote energy efficiency and the transition to a more sustainable energy supply. The company's core activity is providing services and solutions that enable businesses and organizations to measure, optimize and improve their energy efficiency. This includes the development of software and the provision of consulting services in the field of energy efficiency.

Enosis Sàrl 

Liebistorf · Since 2022

The core activity of Enosis SARL encompasses the planning, installation, and maintenance of renewable energy systems, particularly solar energy, as well as providing solutions for electrical power supply and installation. This includes: * Solar Energy: Installation and maintenance of solar panels, battery storage systems, and solar fences * Electrical Energy: Installation, maintenance, and quality assurance of electrical systems, including public lighting and lightning protection * Thermal Energy: Thermography and blower door tests for energy efficiency optimization * Hydraulic Energy: Installation and maintenance of hydraulic systems * Filtration Systems: Installation and maintenance of filtration systems for water and energy supply The company thus offers comprehensive solutions for energy supply and efficiency, with a focus on renewable energies and sustainable technologies.

ENOVEAS SA 

Bôle · Since 2022

Enoveas develops and manufactures intelligent and environmentally friendly micro-machines and micro-factories to promote ecological change and reinvent the concept of the factory. The company's core activity lies in the development and production of innovative, modular and digital solutions for industry, with a focus on environmental responsibility, social responsibility and flexibility.

ENPRO SCHWEIZ AG 

Wohlen Ag · Since 2019

The core activity of ENPRO SCHWEIZ AG is the provision of services in the field of energy and plant maintenance, optimization and consulting, including project management and consulting. The company offers high-quality service, refurbishment and consulting services and focuses on the needs of its customers, based on partnership, trust and appreciation.

Enpuls AG 

Dietikon · Since 2013

The core activity of Enpuls is focused on e-mobility, particularly on the billing and economic calculation of electric mobility projects (ZEV projects).

EnQ Enlatec AG 

Since 2023

EnQ Enlatec AG develops and implements solar power and energy storage solutions, including its Multi Combined Power Plant concept and scalable storage systems designed to support grid stability and manage peak loads.

EnSCo Energy Services Company AG 

Zug · Since 2013

The core activity of EnSCo AG is the wholesale trade of energy (in particular electricity) in Central and Southeastern Europe as well as the trade of environmental certificates on European markets.

ENSUN AG 

Horn · Since 2023

The core activity of Ensun is the planning, installation and maintenance of photovoltaic systems for companies and multi-family homes. Ensun assumes the complete acquisition costs, maintenance, repairs and insurance of the systems for a period of 20 years, enabling customers to use the generated electricity themselves and feed surplus electricity into the public grid.

ensurAccess GmbH 

Nürensdorf · Since 2000

The core activity of ensurAccess is strategic consulting in the field of sustainability, with a particular focus on climate and investment.

Ente Regionale per lo Sport del Mendrisiotto e Basso Ceresio 

Rancate · Since 2022

The company 'Ente Regionale per lo Sviluppo del Mendrisiotto e Basso Ceresio' (ERSMB) is a regional development agency focused on promoting the economic, social, and environmentally friendly development of the Mendrisiotto and Basso Ceresio area in the canton of Ticino, Switzerland. The company's core activities include: Consulting and supporting businesses and institutions in the realization of projects and initiatives; Coordinating with regional and cantonal authorities; Assisting in the search for suitable locations and properties for businesses; Promoting sustainable projects and initiatives, particularly in the areas of agriculture and food economy; Supporting small and medium-sized enterprises (SMEs) in the development of innovative solutions and the use of technologies such as artificial intelligence; Promoting the regional economy through the organization of events and the provision of information and resources for businesses and institutions.

Entreprise forestière Domont 

St-Imier · Since 2020

The company's core activity is the management and administration of properties and natural areas within the framework of a public-law corporation. This includes the maintenance and protection of nature reserves, the support of environmental projects, cooperation with local authorities and organizations, as well as the management of forest and agricultural land.

entsorgungspark schmitter ag 

Widnau · Since 1975

entsorgungspark schmitter ag is a waste disposal facility where commercial, industrial and private customers can deliver their waste. The site accepts a wide range of materials (e.g. excavation material, construction and green waste, e-waste, metals, paper, glass, batteries, appliances, mattresses, tyres), offers a container rental (Muldenservice) with online ordering and arranges proper disposal.

Envien Trading SA 

Geneva · Since 2018

The core activity of Envien Group is the production of bioethanol and other sustainable bioenergy carriers, particularly for use in fuels such as diesel and gasoline. The company is also active in the production of high-quality animal feed.

EnviroFALK AG 

Hünenberg · Since 2015

The core activity of EnviroFALK is the planning, manufacturing and provision of plants and services for water treatment and regeneration for various industrial sectors, such as the cosmetics industry, semiconductor industry and hydrogen production. The company offers holistic solutions for the efficient and sustainable use of water and supports its customers in overcoming challenges in water and wastewater treatment.

Environnement et sciences aquatiques Aquarius Sàrl 

Neuchâtel · Since 2015

The core activity of Aquarius is consulting and implementing projects in the field of environment and aquatics, particularly in the following areas: biological monitoring of hydrosystems, planning and evaluation of measures for revitalization, protection, restoration and creation of aquatic ecosystems, environmental consulting for construction projects (e.g. roads, bridges, dams, wastewater treatment plants, urban development projects), nature conservation projects, especially in the field of biodiversity, and consulting private individuals, companies and authorities on environmental and aquatic issues. The company also offers services in the fields of hydroelectric power, water and environmental management.

EnviroPorts Sàrl 

Gland · Since 2018

The core activity of EnviroPorts is the disposal of maritime waste, including slops, sludges and other types of ship waste. The company provides global solutions for the collection, treatment and disposal of maritime waste, focusing on compliance with MARPOL conventions and IMO guidelines. EnviroPorts also offers additional services such as tank cleaning, off-spec cargo and bunker solutions, underwater services and freshwater supply.

Envirotek Solutions SA 

Nyon · Since 2011

Envirotek Solutions SA is an independent consulting and engineering firm that provides environmental solutions for the healthcare and infrastructure sectors. Services include strategic studies and planning for waste management and treatment infrastructure, design and supply of effluent-treatment equipment, feasibility and tender analysis, project coordination and management, staff training, and quality assurance/testing.

Enviso AG 

Altdorf Ur · Since 2017

The core activity of Enviso AG is environmental planning and consulting, particularly in the areas of environmental construction supervision, environmental monitoring, emergency planning for natural hazards, feasibility studies and environmental concepts, as well as the accompaniment of construction projects in compliance with environmental protection legislation.

Enward Sagl 

Muralto · Since 2023

The core activity of Enward Sagl is to provide strategic solutions to meet the needs of its customers in the areas of energy, water and recycling. In particular, the company focuses on the development of solutions for the treatment of wastewater, the reduction or removal of pollutants from waste and the conversion of hazardous waste into valuable resources.

ENWAG ag 

Langnau Im Emmental · Since 2010

The core activity of ENWAG AG is the generation of energy through small hydroelectric power plants, in particular through the Obermatt power plant.

e-OASI Management SA 

Lugano · Since 2022

The core activity of e-OASI Management SA is the development and management of sustainable energy and mobility projects, particularly in the field of electromobility and renewable energies. The company offers services such as the installation of e-mobility infrastructure, the management of sustainable energy facilities, and the provision of green and sustainable services. It is a company focused on creating sustainable and innovative solutions for the future.

eoc energy ocean GmbH 

Lucerne · Since 2017

The core activity of Energyocean is the sale of Swiss plant-based charcoal.

EOS Energy Solutions AG 

St. Gallen · Since 2015

EOSONO SAILING GmbH 

Benken Zh · Since 2009

The core activity of Eosono GmbH is the development, manufacture and distribution of photovoltaic systems, particularly aesthetic and efficient PV solutions for buildings and large-scale installations.

EOS Ristrutturazioni e Impianti di Sebastiano Conselmo 

Soazza · Since 2017

EOS Ristrutturazioni e Impianti di Sebastiano Conselmo provides photovoltaic, solar thermal and hydraulic systems and performs interior and exterior building renovations. Services include design and turnkey installation of photovoltaic systems, installation of stainless-steel chimneys and pellet stoves/boilers, roof refurbishment and asbestos removal, plus permit handling and maintenance.

PROJEKTE SWM AG 

Stäfa · Since 2012

EPAL SUISSE (Association) 

Bern · Since 2003

The core activity of EPAL SUISSE is the organization and management of the EPAL exchange system, an open exchange pool for load carriers such as europallets and lattice boxes. This includes the granting of licenses to manufacturers, the regular inspection of licensees by external auditing organizations, ensuring quality and compliance with standards, as well as promoting the circular economy and sustainable logistics.

EPAREN SA 

Epalinges · Since 2021

The core activity of EPAREN SA is the realization, financing and operation of renewable energy plants, in particular solar energy plants.

EPASUS AG 

Steffisburg · Since 2017

EPASUS AG is a globally networking, technology-oriented company focused on sustainability markets, particularly energy efficiency, energy systems and renewable energies. It connects companies and innovations, supports or takes part in firms offering sustainability-oriented technologies or infrastructures, and provides strategic expertise on market positioning and efficiency improvements. The company also participates in the implementation of renewable energy systems, for example high-efficiency photovoltaic technology.

eplus elektroplanung GmbH 

Uster · Since 2015

The core activity of e+ elektroplanung gmbh is the planning and implementation of electrical projects, particularly in the field of renewable energy and sustainable solutions.

E plus U Energie- und Umweltberatung GmbH 

Wallenbuch · Since 2025

The core activity of E plus U Energie- und Umweltberatung GmbH is the consulting and process accompaniment of municipalities and other organizations in the areas of energy, environment and sustainability. The specific activities include: municipal consulting, creation of energy master plans, communication and events, energy city consulting, climate and energy strategy for municipalities, and accompaniment of energy projects. The company supports its customers in the development and implementation of sustainable energy and environmental concepts.

EPURA SA 

Lausanne · Since 2015

EPURA SA is responsible for implementing and operating new wastewater treatment facilities. It carries out wastewater treatment processes, including sludge conditioning and incineration, and implements measures to capture micropollutants.

E-Q GmbH 

Herisau · Since 2020

E-Q GmbH provides electrical installations and network/data cabling for residential and commercial properties. The company implements smart-home systems (KNX, Loxone), plans and installs photovoltaic systems, and supplies telematics/VoIP and unified-communications services.

eQcharta GmbH 

Wädenswil · Since 2013

eQcharta GmbH is a consulting and research provider for quantitative spatial assessment, analysis and modelling of aquatic ecosystems. The company carries out field surveys and remote sensing, applies GIS and numerical models, and supports project implementation for renaturation, remediation and monitoring through consulting and knowledge transfer.

eqlosion sàrl 

Lausanne · Since 2015

The company provides consulting services in the field of sustainability and environmental management. The core activities include: development and planning of sustainability and environmental protection strategies for companies and public institutions; conducting sustainability audits, including life cycle analyses, CO2 balancing and RSE diagnostics (Responsabilité Sociétale des Entreprises); development of energy and climate plans for municipalities and companies; training and education programs in sustainability for companies and public institutions; and support and guidance for companies and public institutions in the implementation of sustainability projects.

Erdfairliebe Coaching Kaufmann 

Escholzmatt · Since 2020

The company Erdfairliebe offers two core activities: 1. **Order Coaching**: The company supports customers in creating and maintaining order in their home. This includes organizing spaces, reducing chaos and introducing sustainable order systems. 2. **Do-It-Yourself Workshops**: Erdfairliebe offers workshops where customers learn to make their own cleaning and laundry products. These workshops focus on environmentally and health-friendly, vegan and palm oil-free products.

Erdgas Zürich AG 

Zurich · Since 2013

Erdgas Zürich AG operates and maintains local natural-gas transport networks, ensuring the transport of requested gas volumes for connected customers in 100 municipalities. The company is a joint venture of Energie 360° AG and EnergiNova AG, with operational management provided by Energie 360° AG.

eRevo AG 

Eich · Since 2020

The core activity of eRevo AG is the development and provision of building-integrated hydrogen ecosystems and highly scalable container complete solutions for seasonal energy storage. The company focuses on creating grid-friendly topics in the area of flexibility and offers products such as the Triewald HOME System and the Triewald INDUSTRY System, which enable high self-consumption optimization and autonomy.

Ergül Consulting 

Lausen · Since 2022

The core activity of Ergül Consulting is to provide services as a neutral and independent optimizer, mediator and manager for the holistic optimization of waste disposal processes for commercial, industrial and trading companies as well as municipal and communal utilities. This includes, in particular, the mediation of waste disposal services, such as transportation, recycling and utilization of valuable materials, waste and special waste, as well as the sustainable management and maintenance of achieved waste disposal solutions for economic and ecological sustainability.