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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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Matching companies

9'016 companies found

MUST water technology AG Logo

MUST water technology AG 

Winterthur · Since 2014

The core activity of MUST water technology AG is the development and provision of technologies and solutions for sustainable wastewater treatment and reuse in various industries, particularly in the areas of mining, metallurgy, paper production and municipalities. The company focuses on the development of innovative processes such as Molecular Unique Separation Technology (MUST) and Electro-Coagulation Technology (ECtop) to efficiently clean demanding wastewater and reuse it as process water in a closed loop.

Sustainability Sector
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MW Energie Anlagenbau AG Logo

MW Energie Anlagenbau AG 

Ruswil · Since 2019

MW Energie Anlagenbau AG is a company focused on photovoltaic (PV) system construction that provides consulting, planning, installation and remote monitoring of PV systems. Additional services include energy storage solutions, energy contracting, measures to optimise self-consumption and handling of administrative approvals.

Solar & Photovoltaics
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MW Energie AG Logo

MW Energie AG 

Rain · Since 2014

MW Energie AG provides photovoltaic system construction and offers consulting, planning and implementation services for PV installations. Its services include in-roof PV solutions, energy storage, energy contracting, financing advice, and ongoing monitoring and maintenance.

Solar & Photovoltaics
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M. Wüthrich Ihr Zimmermann GmbH Logo

M. Wüthrich Ihr Zimmermann GmbH 

Zunzgen · Since 2011

The core activity of M. Wüthrich - Ihr Zimmermann GmbH is building and renovating with wood, particularly: wood construction, interior finishing, roof renovation and roofing, photovoltaic systems, staircase construction, parquet work, and terrace construction. The company also offers services such as consulting, planning, and implementation of construction projects, including the application for funding.

Building MaintenanceInterior ConstructionTimber Construction & Carpentry
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mybiogas ag Logo

mybiogas ag 

Wil Sg · Since 2023

mybiogas ag is a consultancy and full-service provider for agricultural biogas plants, supporting farmers with project planning, administrative procedures and lifecycle management. The company does not construct plants itself but coordinates planners, installers and off-take contracts for electricity and gas.

Technical Consulting & EngineeringSustainability Sector
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my-brands.ch ag Logo

my-brands.ch ag 

Biglen · Since 2015

The core activity of my-brands.ch is the marketing and sale of sustainable and environmentally friendly products, particularly bags, backpacks, shoes, accessories and other lifestyle items made from recycled materials or vegan raw materials. The company focuses on collaborating with small brands that advocate for a fair trade chain and environmental protection.

Sustainability Sector
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Mycorhize Sàrl Logo

Mycorhize Sàrl 

Savièse · Since 2023

Mycorrhize offers consulting and development services in the field of sustainable development and environmental technology. The core activities include the implementation of projects and analyses to improve the mobility, energy efficiency and environmental compatibility of municipalities and companies. This also includes the development of strategies and programs to promote sustainable development and the implementation of studies and analyses on topics such as mobility behavior and environmental technology.

Sustainability Sector
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myglobe GmbH Logo

myglobe GmbH 

Eschlikon Tg · Since 2008

The core activity of myglobe GmbH is the development and distribution of CO2-neutral fuel cards for the Swiss market, with the aim of supporting companies and private individuals in reducing their CO2 emissions and acting sustainably.

Sustainability SectorIT Consulting & Services
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NABUCO AG Logo

NABUCO AG 

Zurich · Since 2023

The core activity of Nabuco AG is sustainability consulting and building certification, particularly for new constructions and renovations, with a focus on: strategic planning and label selection (Minergie-ECO, SNBS, DGNB or LEED), material optimization, ecological building requirements and healthy indoor climate, substance preservation and sensitive further development of existing buildings, and radon measurement and consulting. The company supports building owners in selecting and implementing sustainable solutions for their construction projects.

Sustainability Sector
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Nachhaltigerleben GmbH Logo

Nachhaltigerleben GmbH 

Russikon · Since 2021

Nachhaltigerleben GmbH is a platform promoting mindful, self-determined living that provides courses and consultancy on sustainability, health and holistic quality of life. Services include cooking courses and Thermomix demonstrations, event and course venue rental, informational workshops and an online shop for health and natural-care products.

Sustainability Sector
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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.