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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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9'016 companies found

Niki Line AG Logo

Niki Line AG 

Hornussen · Since 2021

The core activity of Niki Line AG is sewer rehabilitation, including various services such as: rehabilitation methods (spray liner process, liner rehabilitation, short liner rehabilitation, manhole rehabilitation, shaft rehabilitation), milling work, sewer cleaning and suction work, sewer inspection and location, and tightness testing. The company offers these services throughout Switzerland and positions itself as a full-service provider in sewer rehabilitation.

Waste Management Industry
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NKG Tropical Farm Management GmbH Logo

NKG Tropical Farm Management GmbH 

Zug · Since 1999

The core activity of NKG Tropical Farm Management GmbH is the sustainable management and administration of coffee plantations in tropical regions, particularly through the establishment and management of its own coffee plantations as well as cooperation with coffee farmers and other institutions in the producing countries.

Sustainability Sector
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Oekologische Beratung, Markus Baggenstos Logo

Oekologische Beratung, Markus Baggenstos 

Stans · Since 1995

The core activity of the company 'Oekologische Beratung Markus Baggenstos' consists of providing services in the field of nature conservation and landscape planning, particularly in the areas of: ecological consulting and environmental impact assessments, vegetation mapping and habitat inventories, nature conservation and landscape planning, ecological construction supervision, and nature education and public relations. The company also offers specialized services in the field of malacology (mollusk research), such as the description of new species and the revision of taxonomies.

Sustainability Sector
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Officine idroelettriche di Blenio SA Logo

Officine idroelettriche di Blenio SA 

Olivone · Since 1956

The core activity of Blenio Kraftwerke AG is the production of energy through the operation of a hydroelectric power plant chain. The company focuses on the efficient use of hydroelectric power plants to provide energy, power and regulation for the grid.

Energy Suppliers
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NOVATERRA SUISSE SA Logo

NOVATERRA SUISSE SA 

Avenches · Since 1995

The company Olmix develops and distributes innovative, biosynthetic solutions for agriculture, animal husbandry and plant care. The core activities include research and development of products for animal nutrition and health as well as for crop protection and plant care, with the aim of promoting sustainable and efficient agriculture.

Sustainability Sector
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Openversum GmbH Logo

Openversum GmbH 

Schlieren · Since 2023

The core activity of Openversum is to make clean drinking water accessible to people in developing countries by equipping and supporting local entrepreneurs with Swiss water treatment technology, enabling them to disseminate and maintain this technology on site. To this end, the company develops and distributes innovative water treatment systems and offers a micro-franchising model that allows local entrepreneurs to sell, install and maintain the systems.

Sustainability Sector
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Opti Sun Sàrl Logo

Opti Sun Sàrl 

Nyon · Since 2024

The core activity of Opti Sun Sàrl is the planning, installation and maintenance of photovoltaic systems, as well as consulting and supporting customers in the implementation of solar energy projects. The company offers specialized services such as sizing and installing customized solar energy systems, optimizing energy efficiency and maximizing return on investment. Additionally, it also provides training and consulting services for companies and individuals to support them in the implementation of solar energy projects.

Solar & Photovoltaics
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planergie ag Logo

planergie ag 

Herzogenbuchsee · Since 2009

planergie ag provides tailored, integrated renewable energy solutions under the energy4me brand, including photovoltaic and thermal solar systems and energy management systems. The company’s services also cover energy storage solutions and battery storage, as well as heat pumps and e-mobility components.

Solar & Photovoltaics
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Podhradsky AG, Heizungen Logo

Podhradsky AG, Heizungen 

Degersheim · Since 1982

Podhradsky AG, Heizungen provides heating and solar systems and publishes project information and contact details on its website.

Solar & Photovoltaics
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Powerpro AG Logo

Powerpro AG 

Sulgen · Since 2024

The company's core activity is the planning, design and execution of electrical installations, particularly in the field of home automation, including the development and integration of products for modern smart homes.

Electrical Planning & InstallationSolar & Photovoltaics
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p + p project solutions SA Logo

p + p project solutions SA 

Yverdon-Les-Bains · Since 2008

The core activity of p+p project solutions SA is the provision of services in the field of industrial project development, energy efficiency and waste recovery. Specifically, this includes: Industrial project management: development, design and production of innovative industrial solutions; Energy efficiency: consulting and implementation of measures to optimize energy efficiency in industrial companies; Waste recovery: consulting and support for waste recovery in industrial companies. The company thus offers a combination of project development, energy efficiency consulting and waste recovery to support industrial companies in optimizing their processes and reducing their environmental impact.

Sustainability Sector
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Premont GmbH Logo

Premont GmbH 

Ottikon (Gossau Zh) · Since 2021

The Premont GmbH company offers assembly and support services in various areas, including industry, gates, electrical, COVID-19 testing centers, bar and garden house constructions, dismantling, conversions and refurbishments. It is a service company specialized in the execution of various works in the construction and assembly sector.

Specialized Construction InstallationsSolar & Photovoltaics
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Probst + Wieland AG Logo

Probst + Wieland AG 

Burgdorf · Since 2007

The core activity of Probst + Wieland AG is consulting and planning in the field of building services engineering, particularly in building technology planning, including the planning and implementation of systems for heating, ventilation, sanitation and energy efficiency. The company offers its services for new buildings and existing buildings and works with modern means and interdisciplinary teams to develop innovative and economically-ecologically balanced solutions.

Solar & Photovoltaics
View profile4.5(2)
PVcontracting AG Logo

PVcontracting AG 

Kriens · Since 2023

The core activity of PVcontracting AG is the planning, financing, construction and operation of photovoltaic systems on the roofs or facades of customers, without requiring them to make an investment themselves. The company also offers service and maintenance for existing photovoltaic systems.

Solar & Photovoltaics
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PV Energie Plus GmbH Logo

PV Energie Plus GmbH 

Basel · Since 2024

The company's core activity is the planning, development and installation of sustainable energy concepts, including photovoltaic systems, balcony power plants, wall boxes and modern heating systems, with the aim of enabling an environmentally friendly and independent energy future.

Solar & Photovoltaics
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PVT Solar AG Logo

PVT Solar AG 

Perlen · Since 2015

The core activity of PVT Solar AG is the development, production and distribution of high-quality PVT hybrid collectors, which combine solar thermal energy and photovoltaics. These hybrid collectors enable efficient use of solar energy for the generation of heat and electricity. The company also offers solutions for the regeneration of earth probes and energy storage in the form of ice storage systems.

Solar & Photovoltaics
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RBI Recycling AG Logo

RBI Recycling AG 

Müllheim Dorf · Since 1982

RBI Recycling AG processes liquid hazardous wastes and operates chemical-physical treatment plants for contaminated wastewaters and liquid wastes. The company provides an IBC/container service (delivery, collection and disposal with documentation) and accepts wastes from chemical and thermal processes, surface treatment, oil-containing and other hazardous industrial wastes for authorities and industry.

Waste Management Industry
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Recyclingfux Avola Logo

Recyclingfux Avola 

Wohlen Ag · Since 2014

The core activity of the company "RecyclingFux" is the collection and disposal of recyclable waste such as old glass, PET, aluminium, plastic bags, batteries, coffee capsules and beverage cartons from private households and small and medium-sized enterprises (SMEs).

Waste Management Industry
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Recycling-Center Wannen AG Logo

Recycling-Center Wannen AG 

Pratteln · Since 1963

The core activity of the company "Recycling Center Wannen AG" is the processing and recycling of mineral construction waste, such as concrete, demolition asphalt, rock, bricks, tiles, ceramics and other rock-like materials. The company offers services in the areas of bulk logistics, skip service and construction material recycling, and produces high-quality recycled materials, such as granulates and gravel mixtures, which can be reused as additives in concrete production or as fill and subbase materials.

Waste Management Industry
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recytec AG Logo

recytec AG 

Beckenried · Since 2008

The core activity of recytec AG is the processing and recycling of various materials, in particular: gravel processing, slag processing, demolition, landfill, fine fraction processing, processing of railway sleepers, and washing of various materials. The company focuses on recovering valuable materials for new products, thereby supporting sustainable resource management.

Rental of Machinery & EquipmentWaste Management Industry
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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.