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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,378 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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8'993 companies found

Jäggi Vollmer GmbH Logo

Jäggi Vollmer GmbH 

Basel · Since 2002

The core activity of Jäggi Vollmer GmbH encompasses two main areas: 1. Roofing and sheet metal work: The company offers services in the areas of roofing, façades, terraces, dormer windows, and gutters, including classic sheet metal work and elaborate custom-made products. 2. Sanitary installations: The company offers services in the areas of bathroom new builds and renovations, sanitary installations, maintenance work, alternative energies, and water damage restoration. Overall, the core activity of the company can be described as comprehensive services in the fields of roofing and sheet metal work, as well as sanitary installations.

RoofingSheet Metal WorkSolar & Photovoltaics
View profile4.5(11)
Josef Amstutz AG Logo

Josef Amstutz AG 

Wettswil · Since 2001

The company's core activity is the cleaning, trading and reconditioning of industrial containers, particularly metal drums, plastic containers and IBCs, as well as consulting and solving transportation, storage and return problems related to these products.

Waste Management Industry
View profile4.4(11)
Kägi AG Wittenwil Logo

Kägi AG Wittenwil 

Wittenwil · Since 1983

Kägi AG Wittenwil is a service company for construction and waste management offering tipper transport, container (mulden) services, earthworks, supply of natural and recycled aggregate products and operation of a collection/recycling yard. The company also operates crushing equipment and a fleet of trucks and construction machines for loading and delivery tasks.

Waste Management Industry
View profile4.7(11)
Kalbermatten Haustechnik AG Logo

Kalbermatten Haustechnik AG 

Arlesheim · Since 1998

The core activity of Kalbermatten Haustechnik AG is the planning, installation, maintenance and repair of heating and sanitary systems for private and business customers as well as public sector entities.

Solar & Photovoltaics
View profile4.6(11)
Kamm Gebäudetechnik GmbH Logo

Kamm Gebäudetechnik GmbH 

Näfels · Since 2019

Kamm Gebäudetechnik GmbH is a building services company offering sanitary installations, maintenance services and solar thermal systems. Its activities include bathroom renovations, water, wastewater and gas installations, water heater and filter installation, industrial piping and repair/maintenance work.

Plumbing & Building ServicesSheet Metal WorkSolar & Photovoltaics
View profile5(11)
Kamu AG Logo

Kamu AG 

Zwillikon · Since 1983

The core activity of KAMU AG is the environmentally friendly disposal and processing of metallic raw materials, particularly in the field of energy technology, as well as metal trading. The activities include: cable recycling, recycling of transformers, switchgear and other electrical components, disposal of SF6 gas-insulated high and medium voltage switchgear, dismantling and processing of electrical systems, metal trading, including the purchase and sale of metal positions of all qualities, disposal logistics and transport of electrical systems and metal positions. The company also offers consulting and concepts for sustainable waste management systems and has its own customer platform for electronic processing of business processes.

Waste Management Industry
View profile4.9(11)
KEWU AG Logo

KEWU AG 

Krauchthal · Since 1991

The core activity of KEWU AG includes green waste recycling, the production of eco-electricity, and the operation of a landfill. Specifically, the company offers services such as green waste recycling, electricity production from bio-waste and photovoltaics, as well as metal recovery and a transshipment station.

Waste Management Industry
View profile4.5(11)
Klimagie Ingenieure AG Logo

Klimagie Ingenieure AG 

Zurich · Since 2020

Klimagie Ingenieure AG is an independent engineering firm specializing in energy and building services (HVAC and sanitary systems). It provides consulting, energy planning, overall engineering and owner representation, prepares expert reports, and develops integrated solutions for heating, ventilation, air conditioning, cooling and sanitary systems using digital methods such as BIM and simulations.

Technical Consulting & EngineeringSustainability Sector
View profile4.6(11)
KOMPOMO GmbH Logo

KOMPOMO GmbH 

Neuenegg · Since 2002

The core activity of Kompomo is the recycling of green waste, wood, clay bricks and construction site/land soil from the forestry, agriculture and construction industries as well as from households, and the production of compost products, such as reclamation soil, under the highest ecological standards.

Horticulture & LandscapingWaste Management Industry
View profile5(11)
Mittelland Räumungen GmbH Logo

Mittelland Räumungen GmbH 

Unterentfelden · Since 2023

The core activity of Mittelland Räumungen is the execution of removals, disposals and recycling services for private individuals, property management companies and authorities. This includes in particular: apartment removals, cellar and attic removals, clutter removals, office removals, warehouse removals, disposal and recycling of waste, cleaning and painting work. The company offers its services throughout Switzerland and is characterized by carefulness, speed and discretion.

Waste Management Industry
View profile5(11)
Muchenberger AG Logo

Muchenberger AG 

Bottmingen · Since 1987

The core activity of Muchenberger AG is the planning, consulting and sale of bathroom fixtures, pool systems, sanitary and heating solutions. The company also provides services in these areas and supports customers in the realization of their individual projects.

Solar & Photovoltaics
View profile4.6(11)
Mulde24 AG Logo

Mulde24 AG 

Steinhausen · Since 2018

The company offers a dumpster rental service where customers can order a dumpster online and choose various options such as delivery location, waste type, dumpster size, and date. The core activity of the company is the rental of waste containers and the disposal of waste.

Waste Management Industry
View profile4.5(11)
Ovivo Switzerland AG Logo

Ovivo Switzerland AG 

Witterswil · Since 1971

The core activity of Ovivo is the development and provision of technological solutions and systems for water treatment and purification, particularly for municipal utilities and industrial companies. The company offers products and services in the areas of electronics, metal production and processing, analytics, metal wastewater, ultrapure water and chemicals consumption materials.

Water Supply
View profile5(11)
Patrick Birchler Logo

Patrick Birchler 

Collombey · Since 2006

Patrick Birchler provides recycling and recovery services for ferrous and non‑ferrous metals, including scrap purchase and sale, sorting and processing (cutting, shearing, crushing) and dismantling of metal installations.

Waste Management Industry
View profile4.8(11)
Roland Betschart Kanalreinigung GmbH Logo

Roland Betschart Kanalreinigung GmbH 

Hirzel · Since 2021

The core activity of Roland Betschart Kanalreinigung GmbH is the professional cleaning and maintenance of sewer and pipe systems, including high-pressure cleaning, suction work, surface cleaning, tightness testing and winter services, to ensure the functionality of wastewater systems and prevent blockages, deposits and damage.

Waste Management Industry
View profile5(11)
Salamon Planung GmbH Logo

Salamon Planung GmbH 

Rifferswil · Since 2018

Solar & Photovoltaics
View profile4.8(11)
Solarchraft Berner Oberland GmbH Logo

Solarchraft Berner Oberland GmbH 

Wimmis · Since 2022

The core activity of Solarchraft is the planning, installation and maintenance of photovoltaic systems, charging stations and energy optimizations, including consulting and administration of projects in the field of renewable energies, particularly solar energy.

Solar & Photovoltaics
View profile4.9(11)
SOPROGAZ SA Logo

SOPROGAZ SA 

Aubonne · Since 1936

The core activity of Soprogaz SA is the development and provision of solutions for heating technology and systems, including after-sales service, maintenance and repair of heating installations.

Solar & Photovoltaics
View profile4.6(11)
Spenglerei Stratmann Logo

Spenglerei Stratmann 

Basel · Since 2020

The core activity of Spenglerei Stratmann is the provision of services in the field of roofing, particularly in the areas of: sheet metal work and sheet metal specialties, roofing (both pitched and flat roofs), terraces and garden plates, sealing and polybau, solar and photovoltaic systems, and sanitary work. The company also offers services in the areas of roof renovation, demolition and disposal of old roofs, as well as the installation of new roofs.

Solar & Photovoltaics
View profile5(11)
Steinegger Elektro AG Logo

Steinegger Elektro AG 

Altendorf · Since 1984

The company's core activity includes the planning, implementation, maintenance and upkeep of energy supply systems, including network maintenance, new network construction, construction of transformer stations, maintenance of metering systems, meter control and billing, as well as work on house installations, repairs and customer service.

Solar & Photovoltaics
View profile5(11)
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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.