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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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IndustryEnergy & Environment
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9'016 companies found

U-home Solar SA Logo

U-home Solar SA 

Puidoux · Since 2022

The core activities of U-Home Group include: 1. **Renewable Energy**: The production of photovoltaic modules, engineering, investments, EPC (Engineering, Procurement and Construction) and distribution of solar systems. 2. **Health and Pharma**: The distribution of medical products and wellness goods worldwide, particularly through participation in Meilleure Health International. 3. **Real Estate**: The development and management of real estate, including the hotel "Le Baron Tavernier" in Switzerland. 4. **High-Tech**: Participation in the Chinese high-tech company Xiao Mi and other companies. The company operates internationally, with a focus on China, Australia, Switzerland and other countries.

Solar & Photovoltaics
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Ukatis Sàrl Logo

Ukatis Sàrl 

Commugny · Since 2022

Ukatis Sàrl is a consulting firm that provides advisory services in management, procurement, sustainability and transformation.

Management ConsultingSustainability SectorIT Consulting & Services
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UM Consulenza tetti Sagl Logo

UM Consulenza tetti Sagl 

Ronco Sopra Ascona · Since 2016

The core activity of UM Consulenza tetti is consulting, planning, installation and sales of roofing systems and solar systems.

Solar & Photovoltaics
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Umtec Technologie AG Logo

Umtec Technologie AG 

Hombrechtikon · Since 2004

The core activity of Umtec Technologie AG encompasses the areas of environmental consulting, training and further education, as well as services in the field of sustainability and environmental technology. Specifically, the company offers: environmental consulting, including eco-efficiency analyses (SEBI analyses), life cycle assessments, environmental construction supervision and risk analyses; training and further education in the areas of heating plant operation, raw material processing, waste management facilities, sustainability in civil engineering and wood heating plants; services such as ContaMAP (measurement of lead on shooting ranges) and WASTEvision (expert conference on processing and disposal); development of training and further education programs as well as consulting services in the field of sustainability and environmental technology.

Technical Consulting & EngineeringWaste Management Industry
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UMWEKO GmbH Logo

UMWEKO GmbH 

Grenchen · Since 2005

The core activity of Umweko is consulting, inspection, training and education in the field of biomass, particularly in the areas of composting, biogas, sewage sludge and wastewater treatment plants, as well as environmental expertise and plant operation.

Sustainability Sector
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Umweltatelier GmbH Logo

Umweltatelier GmbH 

Zurich · Since 2019

The company Umweltatelier GmbH offers practical, pragmatic and creative solutions to ecological issues. The core activity of the company lies in the field of environmental consulting and planning, particularly in the development of solutions for ecological challenges.

Sustainability Sector
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Umweltanalytik Schweiz AG Logo

Umweltanalytik Schweiz AG 

Villmergen · Since 2021

The core activity of Umweltanalytik Schweiz AG is to accompany and support waste producers and actors in the waste management industry in the disposal and recycling of waste. This includes defining legal requirements, planning and conducting sampling, searching for suitable testing laboratories, sending samples, checking the plausibility of analysis results, and sending documentation. The company also offers specific services in the areas of soil, contaminated sites, waste, old wood, fuels, and water.

Sustainability Sector
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umweltwerk Stöckli Logo

umweltwerk Stöckli 

Naters · Since 2021

The company "umweltwerk" offers services in the field of environmental protection and planning, particularly in the areas of: * Consulting and support for farmers in the collection and optimization of agricultural data * Species conservation and inventory, especially for bats, reptiles and amphibians * Environmental impact assessments and construction monitoring * Geoinformation and GIS applications * Habitat enhancement and species conservation projects The core activity of the company lies in consulting and supporting farmers and other stakeholders in the implementation of environmental protection measures and the optimization of agricultural processes.

Technical Consulting & EngineeringSustainability Sector
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Umwerken - Beratungsbüro Jaus Logo

Umwerken - Beratungsbüro Jaus 

Egg B. Zürich · Since 2023

The core activity of the company "Umwerken" is consulting and project management in the fields of environment, safety and sustainability.

Sustainability Sector
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UNA Atelier für Natur und Umwelt AG Logo

UNA Atelier für Natur und Umwelt AG 

Bern · Since 2000

The company provides services in the field of environment and ecology, particularly in the areas of: project management, GIS and databases, expert opinions and consulting, environmental education, success control and monitoring, environmental impact assessments, and ecological construction supervision. The core activity of the company is to support and advise companies and organizations in the implementation of environmentally friendly projects and measures.

Sustainability Sector
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Unbound Potential AG Logo

Unbound Potential AG 

Thalwil · Since 2023

The core activity of Unbound Potential GmbH is the development and manufacture of innovative, large-scale energy storage systems, particularly membrane-free flow batteries designed for stationary long-term energy storage. These batteries are intended to provide a cost-effective, safe and efficient solution for storing renewable energy, thereby supporting the transition to a sustainable and CO2-neutral energy supply.

Solar & Photovoltaics
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Unearthodox Logo

Unearthodox 

Versoix · Since 2022

The core activity of Unearthodox is to promote sustainability and nature conservation through innovative approaches, projects and initiatives. The company focuses on developing strategies and solutions that strengthen the connection between humans and nature and promote a regenerative approach for the future. Unearthodox works with a broad network of experts, partners and stakeholders to achieve its goals.

Sustainability Sector
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UNGSII Foundation Logo

UNGSII Foundation 

Gebertingen · Since 2021

The core activity of UNGSII is to support the implementation of the 17 Sustainable Development Goals (SDGs) of the United Nations by providing research and data to assess and compare the sustainability performance of companies and countries. The company develops and manages the UNGSII Index, which evaluates companies based on their environmental and social balance sheet and encourages companies to improve their sustainability performance.

Sustainability Sector
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UNICA SUISSE SA Logo

UNICA SUISSE SA 

Lugano · Since 2014

The core activity of Unica Suisse SA encompasses the execution of works in the field of environmental remediation and demolition of buildings, including: * Decontamination (decontamination and remediation of contaminated sites) * Cleaning and remediation of buildings and facilities * Dismantling (demolition and disassembly of buildings and facilities) * Demolition (demolition of buildings and structures) The company offers these services to international clients in Switzerland and Italy.

Waste Management Industry
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Unkrautjäger GmbH Logo

Unkrautjäger GmbH 

Lüchingen · Since 2017

The core activity of the company 'Unkrautjäger GmbH' is the chemical-free weed control on various surfaces such as gardens, parking lots, playgrounds, parks and school facilities, artificial turf and sports fields, as well as streets and paths. This is done using a special method in which water is heated to approximately 98 degrees Celsius to permanently eradicate the weeds.

Sustainability Sector
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UpCircle Technology AG Logo

UpCircle Technology AG 

Zurich · Since 2024

UpCircle Technology AG develops AI-powered computer vision systems to analyze and quantify the composition and quality of baled waste, providing infeed monitoring, digital shift reports and a dashboard to support collectors, sorters and recyclers.

Waste Management IndustrySoftware Development
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Up-To-Date Umwelttechnik AG, Oberurnen Logo

Up-To-Date Umwelttechnik AG, Oberurnen 

Niederurnen · Since 1994

The core activity of Up-To-Date Umwelttechnik AG is consulting and providing services in the field of sustainability for companies and organizations, particularly in the areas of: energetic optimization and minimization of greenhouse gas emissions, energy saving, evaluation and implementation of renewable energy. Additionally, the company also offers services in the areas of exhaust air purification, heat recovery and process optimization.

Technical Consulting & EngineeringSustainability Sector
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urbaMonde - Suisse Logo

urbaMonde - Suisse 

Geneva · Since 2005

The core activity of urbaMonde is the promotion and support of participatory housing and sustainable urban development at an international level. The company coordinates the international CoHabitat network, which consists of actors in participatory housing, and supports concrete projects in various countries to promote access to housing and the participation of residents in shaping their cities.

Sustainability Sector
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urbanista.ch AG Logo

urbanista.ch AG 

Zurich · Since 2020

The core activity of urbanista.ch is the development of innovative space and mobility strategies for neighborhoods, municipalities, and regions. This includes the conception and implementation of projects in the fields of urban planning, transportation transition, spatial development, and landscape architecture. The company offers services such as data analysis, mobility strategies, policy consulting, public participation, and engagement. The core activity can be summarized as 'consulting and planning in the field of sustainable spatial development and mobility'.

Sustainability Sector
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URBANPV AG Logo

URBANPV AG 

Sennwald · Since 2008

URBANPV AG produces solar electricity and offers solutions to enable decentralized solar generation in urban areas. Offerings include URBANROOF, a PV carport solution that combines solar power generation with parking shade.

Solar & Photovoltaics
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Frequently asked questions

Searching the directory

How the search works, what each filter means, and how the results come together.

What can I search for in the directory?
The search field matches company names, industries and places. Beyond that you can filter by Industry (18 categories based on the NOGA classification), Size (number of employees), Region (canton, language region or postal code) and Special (keywords and entry date). Filters combine freely; the active ones appear as chips below the filter bar and can be removed there individually.
How do keywords work?
Keywords search the description and stated purpose of each company — the text that goes beyond the company name. Multiple keywords are combined with OR: every additional keyword widens the set of matches rather than narrowing it.
What belongs in the postal code field?
A single postal code (e.g. 8000) or a range (e.g. 1000-1010). The field accepts postal codes only — for place names, use Canton or Language region.
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How is organisation size determined?
Size reflects the number of employees and is calculated from publicly available information by a model developed in-house. It is a best-possible estimate, not an official figure.
What does the Verified label mean?
Verified means the entry is tied to a UID (Swiss business identification number) and therefore links back to the official Swiss business register. The label speaks to the company's identity — it is not a rating of its performance.

Source: Federal Statistical Office, UID register

How do I sort the results?
Use the dropdown above the list: Relevance, Name (A–Z), Best rating, Most reviews or Longest established. You can also switch between list and map view and set how many results appear per page.