Energy & Environment

SuCo GmbH 

Basel · Since 2022

SuCo Sustainability Consulting provides consulting services in the field of sustainability. The core activity includes supporting companies and organizations in the development and implementation of sustainability strategies, the creation of sustainability reports, the conduct of CO₂ balances and the implementation of Science Based Targets (SBTi). In addition, the company also offers services in the areas of communication and stakeholder engagement.

Süess Sanitär GmbH 

Flühli Lu · Since 2006

The core activity of Süess Sanitär GmbH includes the installation, maintenance and repair of sanitary facilities, heating systems, solar systems, central vacuum cleaners and pipeline construction.

SULO Schweiz AG 

Aesch Bl · Since 2004

The core activity of SULO Schweiz AG is the development, manufacture and marketing of solutions for waste management, in particular waste bins, containers and containers, as well as the provision of services in the field of waste management, such as cleaning and disinfection of containers, inventory management and planning, maintenance and repair of containers, and communication with citizens in the context of waste management.

sun2wheel AG 

Obernau · Since 2020

The core activity of sun2wheel is the development and provision of intelligent charging solutions for electric vehicles, particularly bidirectional charging stations that enable vehicles to serve as power banks for the power grid. The company also offers fleet management solutions for businesses and grid-friendly charging to prevent network overload and minimize infrastructure expansion.

Sun4energy Heinz Streit GmbH 

Murten · Since 2020

The core activity of Sun4energy Heinz Streit GmbH is the planning, consulting and installation of renewable energy systems, particularly photovoltaic systems, carport systems and wind power plants, for private households, companies and municipalities, with the goal of providing sustainable and financially attractive solutions for energy supply.

SUNAGE SA 

Balerna · Since 2007

The core activity of Sunage SA is the design, development and production of photovoltaic modules, in particular the integration of photovoltaic modules into architectural facades and roofs (Building Integrated Photovoltaic, BIPV), as well as the manufacture of photovoltaic solutions for various applications.

Sunamp Switzerland GmbH 

Egg B. Zürich · Since 2015

The core activity of Sunamp is the development, manufacture and sale of thermal energy storage systems, particularly heat batteries, which store energy and release it as heat for hot water, heating and cooling. These systems use patented phase change materials and are designed to help reduce carbon emissions and make buildings more energy efficient and sustainable.

Suncell Energy SA 

Montreux · Since 2007

Suncell Energy SA develops and markets mounting systems for non-framed glass‑glass and bifacial photovoltaic modules, coloured PV modules and BIPV solutions for roofs and facades. The company also provides the PV Designer 3D web application for PV system planning and supports architects and facade contractors from pre‑project design through execution.

Sunconnect GmbH 

Au Zh · Since 2009

The core activity of Sunconnect GmbH is the planning, implementation and maintenance of solar systems for property owners, particularly the installation of photovoltaic panels and associated accessories to produce renewable energy.

Sun Contracting Switzerland AG 

Lucerne · Since 2012

The core activity of Sun Contracting AG is the construction and operation of photovoltaic systems as well as sustainable investments, particularly through the issuance of bonds and subordinated loans.

Suncontract GmbH 

Basel · Since 2010

Suncontract GmbH installs and implements photovoltaic systems and associated energy storage for individual customers and self‑consumption arrangements (ZEV, vZEV, LEG). The company develops dedicated elevated mounting solutions for green flat roofs and performs load‑profile analyses to size storage systems.

SunCraft Energiedienstleistungen GmbH 

Oberdorf So · Since 2022

SunCraft Energiedienstleistungen GmbH supplies customized photovoltaic systems, battery storage, electric vehicle charging stations and self-consumption control solutions. The company handles project planning, delivery, installation and turnkey implementation for residential and commercial customers.

Suncrest GmbH 

Pratteln · Since 2015

The company's core activity is the sale and installation of photovoltaic components and systems, including the selection and delivery of high-quality products such as inverters, solar modules, storage systems and mounting systems. The company also offers services such as planning and material compilation, as well as the sale of accessories and spare parts. Furthermore, the company collaborates with partner companies from the construction industry to offer comprehensive solutions for the installation of photovoltaic systems.

sundesign GmbH 

Stallikon · Since 2009

The company sundesign | photovoltaic engineering primarily deals with the planning, conception and implementation of photovoltaic systems and their integration into buildings. The core activities include: feasibility studies and economic calculations for photovoltaic projects, planning and engineering of photovoltaic systems, consulting and inspection during the construction and operation phase, conception of solar power solutions for builders, architects and planners, and integration of photovoltaic systems into buildings, including facades and roof systems. The company thus offers comprehensive services for the planning, realization and maintenance of photovoltaic projects.

Suneco AG 

Jona · Since 2016

The core activity of SUNECO AG is the planning, installation and consulting of photovoltaic systems and energy storage systems for industrial, commercial and private customers, with the goal of promoting the self-consumption of renewable energy and reducing dependence on external power sources.

Sundust AG 

Zurich · Since 2017

Sunergy GmbH 

Goldach · Since 2008

Sunergy GmbH is a consultancy and planning firm for wind turbines, specializing in identifying suitable sites for wind power production. Services include wind energy yield reports and expert assessments with uncertainty calculations, and the development of a regional wind cadastre in collaboration with Fachhochschule OST.

SunGrid Sàrl 

Vouvry · Since 2024

The core activity of SunGrid Sàrl is the planning, installation and maintenance of solar systems for private individuals and companies, with a focus on self-consumption and energy efficiency. This also includes services such as monitoring, maintenance and repair of solar systems, as well as the optimization of energy consumption and production through intelligent home automation.

SUNGY AG 

Siselen Be · Since 2010

SUNGY AG provides planning, consulting and implementation of photovoltaic systems, battery storage, e‑mobility conversions and heat generation systems, including economic assessments and self‑consumption optimization.

sunig GmbH 

Frauenfeld · Since 2022

The core activity of sunig GmbH is the planning, consulting and support of private individuals and companies in the construction of solar systems in self-construction. To this end, the company also offers courses and workshops to provide customers with the necessary know-how. Additionally, sunig supplies the necessary materials and tools for the construction of solar systems.

SunneChraft AG 

Oberhofen Am Thunersee · Since 2023

The core activity of SunneChraft is the planning, construction and operation of photovoltaic systems on suitable roofs to generate solar power and contribute to the energy transition. The company offers roof rentals and affordable electricity, aiming to increase the share of solar power in the Swiss market and reduce electricity costs.

Sun Network AG 

Ins · Since 2015

The company's core activity is energy consulting and planning, particularly in the field of renewable energies, specifically photovoltaics. The company supports customers in optimizing their energy consumption, reducing electricity costs and lowering CO2 emissions. This includes services such as needs analysis, technical planning, tendering, construction supervision and quality assurance of photovoltaic systems.

Sunny Solartechnik (Schweiz) GmbH 

Eschenz · Since 2012

The core activity of SUNNY Solartechnik (Schweiz) GmbH is the planning, installation, and maintenance of solar power systems, including the integration with intelligent home technology and the provision of products such as photovoltaic modules, inverters, battery storage systems, and monitoring systems.

Sunrise Capital AG 

Kreuzlingen · Since 2023

The core activity of Sunrise Capital AG is to provide information, analyses and strategies for investors in the area of small caps and photovoltaics, enabling them to make informed decisions. This includes market analyses, company profiles, investment strategies and expert opinions. The company also supports investors in the realization of projects and offers the opportunity to invest a portion of the capitalization in tangible assets such as solar power plants or photovoltaic participations.

Sunsay NRG Suisse AG 

Zug · Since 2024

Sunsay NRG Suisse AG develops, constructs and operates photovoltaic and energy storage systems and delivers turnkey solar projects. The company provides project development, construction, operational management and advisory services for institutional, commercial and private investors, covering site assessment, permitting and ongoing monitoring.

Sunsol GmbH 

Oberrieden · Since 2008

The core activity of Sunsol GmbH is the distribution and consulting of products and services in the field of solar energy, particularly: * Sales of solar systems and components (e.g. modules, inverters) * Provision of balcony power plants and related accessories * Distribution of solar-powered outdoor lighting and heating element boosters * Energy consulting for households and solar lighting consulting for garden areas. The company also offers consulting and support for the planning and implementation of solar projects.

Sunstyle AG 

Bolligen · Since 2012

Sunstyle AG is a provider of building-integrated photovoltaic (BIPV) roofing systems supplied as solar tiles/shingles. The company develops and supplies roof systems that combine structural roofing materials with energy-generating modules for residential and commercial buildings, and provides technical specifications, installation manuals and project case studies. Its solar tiles use PERC monocrystalline photovoltaic cells and are documented in downloadable datasheets.

Suntainable AG 

Zumikon · Since 2009

The core activity of Suntainable AG is the planning, implementation and consulting of solar systems, as well as the development of technologies in the field of energy storage and energy transmission, with the goal of creating economic and sustainable solutions for the global energy supply.

Suntherm AG 

Vorderthal · Since 2021

The core activity of Suntherm AG is the development, marketing and distribution of innovative energy systems, particularly heat pumps, heat pump boilers, photovoltaic systems and other solutions for efficient heating, cooling and hot water preparation. The company offers comprehensive consulting and individual overall solutions for customers to meet their needs and wishes in the field of renewable energy.

Sun Valley Sàrl 

Les Ponts-De-Martel · Since 2011

Sun Valley Sàrl designs and installs turnkey solar photovoltaic systems for self-consumption or grid feed-in, serving businesses, public bodies and agricultural operations. The company's services cover system design, installation and commissioning.

Sunwatt SA 

Geneva · Since 1997

Sunwatt SA is a company specializing in the engineering and construction of photovoltaic (PV) systems. Services include turnkey rooftop, ground‑mount and carport installations for residential and commercial clients, system design, permitting and installation, energy audits and corporate training.

SUNWELL Sàrl 

Sion · Since 2020

The core activity of SUNWELL is the planning and design of alpine solar systems, particularly photovoltaic systems, taking into account the specific conditions of the alpine environment such as snow, wind and radiation. The company provides consulting services to enable the most efficient and safest placement of solar systems, thereby contributing to the promotion of renewable energies.

Surer UPREC AG 

Muttenz · Since 2020

Suspire GmbH 

Basel · Since 2019

Suspire GmbH provides consultancy services to help companies develop more sustainable business practices and responsible leadership. The firm focuses on sustainability, environmental and risk management and offers services such as risk analysis, strategy development, sustainable supply chain integration and sustainability communication for clients in the chemical, pharmaceutical, logistics and retail sectors.

Sustainable Health AG 

Winkel · Since 2016

The Sustainable Health AG company is engaged in project management and innovative solutions for a sustainable and fair Swiss healthcare system.

Sustainable Impact Association 

Geneva · Since 2019

Sustainable Impact Association is a not-for-profit association that promotes social innovation and social entrepreneurship and supports non-profit projects. It operates an innovation hub offering coworking space, events and programs to support entrepreneurs, intrapreneurs and organisations in advancing the Sustainable Development Goals.

Sustainable Innovations GmbH 

Neerach · Since 2021

The core activity of Sustainable Innovations GmbH is the distribution partnership for innovative and sustainable products, particularly in the area of energy-efficient climate concepts and hygiene security for real estate.

Sustainable Strategies Gminder 

Rigi Scheidegg · Since 2010

Dr. Carl Ulrich Gminder's company offers consulting and coaching services in the areas of sustainability strategy, climate protection, and corporate social responsibility (CSR). The core activities include: Strategic consulting and coaching for companies to achieve their sustainability and climate protection goals, Development and implementation of sustainability strategies and concepts, Conducting workshops, seminars, and training sessions on topics such as sustainability, climate protection, and CSR, Auditing and certification of companies in the areas of sustainability and climate protection, Interim management and change management for companies looking to improve their sustainability and climate protection activities, Coaching for entrepreneurs and executives who want to achieve their sustainability and climate protection goals.

Sustainserv GmbH 

Zurich · Since 2001

SustainServ is a globally active management consulting firm specializing in the integration of sustainability aspects into companies' strategies, day-to-day operations, and reporting. The company's core activities include: * Development of sustainability strategies * Materiality analysis * Greenhouse gas accounting * Human rights assessments * Stakeholder engagement * GRI reporting * Implementation and monitoring of sustainability measures * Reporting and communication of sustainability performance The company supports its clients in integrating sustainability into their business practices and helps them achieve their long-term goals.

SW Consulting SA 

Geneva · Since 1986

The core activity of SW Consulting SA encompasses two main areas: 1. **Resource and Energy Economics**: The company examines global supply chains of fossil fuels and the possibilities of replacing them with CO2-free energy sources. Additionally, related topics such as water and the interconnection of energy, water, and agriculture (energy-water-agriculture "nexus") are analyzed. 2. **IT Support**: SW Consulting offers consulting services in various IT areas, including database design, internet protocols, software design, and custom programming.

Swiss Better Gold Association 

Tannay · Since 2018

The core activity of Swiss Better Gold Association is to promote and support the development of responsible and sustainable supply chains for gold from small and medium-sized mining operations (Artisanal and Small-scale Mining, ASGM). This includes providing technical support, social investments and establishing direct supply chains between the mining operations and the association's members. The goal is to improve the living conditions of mining communities and establish responsible, sustainable and transparent supply chains in the gold sector.

Swiss Clever Energy AG 

Bern · Since 2012

The core activity of Swiss Clever Energy AG includes the purchase and sale of its own plots of land, buildings and apartments, as well as the development and implementation of sustainable energy supply models, including decentralized power generation plants and electromobility solutions.

Swiss Climate AG 

Naters · Since 2021

Swiss Climate AG is a consultancy specialising in CO2 management, sustainability, climate protection projects and energy. Its services include carbon footprinting for companies, products and events, sustainability strategy and reporting, climate project development and financing, training courses, and communication and advisory services for public institutions and businesses.

Swiss Climate AG 

Bern · Since 2006

Swiss Climate AG is a consultancy focused on CO₂ management, sustainability management, climate protection projects and energy. The company provides services for businesses, product and event assessments, and public entities, including carbon accounting, advisory on mitigation measures, climate reporting and project development. Its services also include training, communication support and assistance with net‑zero roadmaps.

Smart City AG 

Basel · Since 2024

Smart City AG is a company in electrical engineering and energy innovation that develops and implements technologies for smart cities, cyberkinetics and renewable energy. Services include solar and wind energy systems, energy‑efficient data centers, blockchain‑based energy projects and Bitcoin mining, IoT and cyberkinetic solutions, modern agricultural technology, gas power plant modernization, water distillation, waste‑to‑energy systems, BIM and project management for urban infrastructure.

SwissEcoSystems GmbH 

Bülach · Since 2008

The core activity of SwissEcoSystems GmbH is the planning, development and implementation of projects in the field of renewable energies, particularly photovoltaics (PV), as well as consulting and supporting private individuals, companies and administrations in the sustainable and resource-efficient design of their projects.

swissEmbedded GmbH 

Nussbaumen Ag · Since 2002

The company is a provider of solar systems and related products and services. The core activities include: * Sales of complete solar systems, solar modules, inverters, storage systems and other related products * Consulting and planning of solar systems for private and commercial customers * Provision of services such as installation, maintenance and repair of solar systems * Sales of storage solutions for solar systems, including the integration of products like the Tesla Powerwall * Provision of additional products and services such as data loggers, monitoring systems and insurance for solar systems.

Swiss Energie Luzern AG 

Lucerne · Since 2022

The core activity of Swiss Energie Luzern AG is the planning, installation and maintenance of photovoltaic systems (PV systems) for companies, in order to support them in the use of renewable energy and the reduction of electricity costs.

SWISS FRESH WATER SA 

Romanel-Sur-Lausanne · Since 2008

Swiss Fresh Water develops, manufactures and distributes machines for water treatment and desalination to provide drinking water in regions with limited access to clean water. The machines are robust and designed for use under extreme conditions. The company also offers services such as maintenance, testing and quality assurance to ensure that the produced water meets local health standards.

Swissgas, Schweizerische Aktiengesellschaft für Erdgas 

Zurich · Since 1993

Swissgas, Schweizerische Aktiengesellschaft für Erdgas is a private joint‑stock company that serves as a service platform for regional network companies by operating the high‑pressure gas network and marketing transport capacity. It owns a high‑pressure pipeline network (260 km), manages intake and custody transfer stations, handles nominations and transport coordination (including the KSDL) and markets transit capacity. Its activities include asset management, operation, maintenance and monitoring of pipeline infrastructure and representation in industry forums.