ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The first Swiss company directory, built to boost AI visibility.

Product
  • Pricing
  • Directory
  • Industries
Company
  • About
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,089 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

Filters
IndustryEnergy & Environment
Search results

Matching companies

9'017 companies found

PeHaEnergie GmbH Logo

PeHaEnergie GmbH 

Gais · Since 2010

The core activity of PeHa Energie GmbH is the development, manufacture and distribution of infrared heating systems for indoor and outdoor use, with the goal of enabling healthy and environmentally friendly heating without emissions.

Sustainability Sector
View profile2(4)
PEVO GmbH Logo

PEVO GmbH 

Arlesheim · Since 1993

PEVO GmbH is an electrical engineering company providing planning, installation and inspection services for electrical systems. Services include LED lighting, communication cabling, automation (PLC programming), electrobiological measurements and customer training.

Technical Consulting & EngineeringElectrical Planning & InstallationSolar & Photovoltaics
View profile5(4)
PLOCHER SCHWEIZ AG Logo

PLOCHER SCHWEIZ AG 

Hittnau · Since 1997

The core activity of Plocher Schweiz AG is the development and distribution of products for ecological agriculture, water remediation and environmental technology. The products include, among others, animal feed, soil improvement agents, compost and manure treatment agents, water treatment agents and products for the care of horses and poultry. The company also offers solutions for the harmonization of biotopes and water bodies.

Sustainability Sector
View profile5(4)
Promenergia SA Logo

Promenergia SA 

Lugano · Since 2000

Promenergia SA operates in construction and real estate development as a developer and general contractor. The company manages projects from land acquisition and collaboration with architectural firms through design and execution to turnkey delivery, providing services such as feasibility studies, design, cost estimation, tender and contract management, site supervision and final inspections.

General ContractorsSolar & Photovoltaics
View profile4.3(4)
ProSolis AG Logo

ProSolis AG 

Arlesheim · Since 2023

The core activity of ProSolis AG is the planning, installation and maintenance of sustainable energy supply systems, particularly photovoltaic systems, battery storage and charging stations for e-mobility. The company provides comprehensive solutions for the production, storage and control of renewable energy and supports customers in implementing their own energy supply.

Electrical Planning & InstallationSolar & Photovoltaics
View profile5(4)
psp energietechnik ag Logo

psp energietechnik ag 

Busswil Tg · Since 2004

The core activity of psp energietechnik ag encompasses the planning, installation, and maintenance of building technology systems, particularly in the following areas: heating technology (e.g. oil and gas boiler systems, wood-fired heating systems, heat pump technology), ventilation technology, solar technology, sanitary technology (e.g. sanitary installation work, water treatment systems, rainwater harvesting), and electrical technology (e.g. electrical installation work, lighting, communication, IT, security systems, building automation). The company offers its customers comprehensive solutions, providing a single point of contact for all building technology needs.

Electrical Planning & InstallationPlumbing & Building ServicesSolar & Photovoltaics
View profile5(4)
PVT-Schweiz GmbH Logo

PVT-Schweiz GmbH 

Herisau · Since 2008

The core activity of PVT Schweiz is the planning, installation and marketing of photovoltaic systems for private and commercial customers in Switzerland.

Solar & Photovoltaics
View profile5(4)
Recovis AG Logo

Recovis AG 

Saillon · Since 2016

The core activity of Recovis is the disposal and recycling of waste. This includes services such as consulting, collection, disposal and recycling of waste, as well as the management of waste management projects. The company also offers specific services such as container service, waste taxi, turnkey management and mobile waste collection.

Waste Management Industry
View profile4(4)
René Brügger GEBATEC AG Logo

René Brügger GEBATEC AG 

Aeschi So · Since 2013

The core activity of René Brügger GEBATEC AG is the installation, maintenance and repair of sanitary facilities, heating systems and building plumbing. The company thus offers services in the fields of building technology, heating systems, sanitary technology and plumbing.

Sheet Metal WorkSolar & Photovoltaics
View profile4(4)
Replast Recycling GmbH Logo

Replast Recycling GmbH 

Güttingen · Since 1998

The core activity of Replast Recycling GmbH is the recycling of plastics, particularly plastic waste such as films, composite materials and molded parts. The company offers services including the acceptance, processing and utilization of plastic waste to produce new products such as trash bags and construction films.

Waste Management Industry
View profile4.8(4)
Rickenbach AG Logo

Rickenbach AG 

Kreuzlingen · Since 2018

Rickenbach AG is a specialist company for sanitary and heating installations and for alternative energy solutions. The firm designs and installs bathrooms, performs bathroom renovations and sanitary installations, and provides planning and implementation services. It also installs and services heating systems (heat pumps, gas, oil and wood heating, chimneys), supplies central vacuum systems and carries out maintenance and repair work.

Solar & Photovoltaics
View profile4.3(4)
Rickenbach Engineering AG Logo

Rickenbach Engineering AG 

Illighausen · Since 2023

The company's core activity is the creation of heating and ancillary cost statements, in particular the consumption-based billing of heating and water costs, as well as the development of measurement concepts for properties.

Technical Consulting & EngineeringSustainability Sector
View profile5(4)
Roger Seematter S.A. Logo

Roger Seematter S.A. 

St-Légier-La Chiésaz · Since 1984

The core activity of Seematter SA is the organization of solutions for professional cleaning and hygiene in the catering and healthcare industries. This includes in particular: the delivery and maintenance of professional dishwashers for the catering industry; the provision of products and solutions for hygiene in hospitals and care facilities; and the organization of systems for the ecological disposal of organic waste from the catering industry. The company also offers technical service and consulting in these areas.

Sustainability Sector
View profile4.5(4)
Rothacher Polybau AG Logo

Rothacher Polybau AG 

Uetendorf · Since 1998

The core activity of Rothacher Polybau AG is the provision of services in the construction and roofing industry, particularly in the areas of: roofing (flat roof, pitched roof, metal roof), insulation, facades, sheet metal work, lightning protection, solar systems, and building maintenance. The company offers consulting and planning as well as the execution of work in these areas.

Solar & Photovoltaics
View profile4(4)
Roth-Basel GmbH Logo

Roth-Basel GmbH 

Basel · Since 2016

The core activity of Roth Basel encompasses a wide range of services in the areas of waste disposal, logistics, and craftsmanship. These include: waste disposal (excluding special waste), clearance of houses, apartments, cellars, and attics, transportation (small and large-scale), removals (including facade lifts), courier services, painting work, and demolition work. The company thus offers a broad spectrum of services tailored to the needs of private individuals and businesses in the areas of waste disposal, logistics, and craftsmanship.

Waste Management Industry
View profile5(4)
RRGL GmbH Logo

RRGL GmbH 

Schwanden Gl · Since 2023

The core activity of RRGL.ch GmbH encompasses the following services: masonry and demolition work, environmental work, transport services (goods, vehicles, building materials, relocations), disposal services (waste, bulky goods, household clearances, eco-friendly disposal), and delivery of building materials (concrete, gravel, compost, green waste). Thus, the company offers a wide range of services in the fields of construction, transport, and disposal.

Waste Management Industry
View profile5(4)
Rudosa Sàrl Logo

Rudosa Sàrl 

Eclépens · Since 1991

The core activity of Rudosa Sàrl is the collection, transportation, processing and secure disposal of special waste, including medical waste, industrial waste and confidential documents.

Waste Management Industry
View profile5(4)
Entsorgungszentrum Burgholz AG Logo

Entsorgungszentrum Burgholz AG 

Wengi B. Frutigen · Since 2008

The core activity of Ryter Holzverwertung AG is the disposal and recycling of wood and other waste, including the acceptance, processing and reuse of materials such as wood, as well as the sale of products such as collection bags for waste disposal. The company operates a disposal center in Burgholz and offers various services such as material transportation, vehicle and machine rental.

Waste Management Industry
View profile4.8(4)
Schubiger Energie-Dämmtechnik Logo

Schubiger Energie-Dämmtechnik 

Uznach · Since 2013

The core activity of Schubiger Energie-Dämmtechnik is the provision of services in the field of energy efficiency and sustainable building. Specifically, this includes: energy consulting for building owners, planning and implementation of energy efficiency measures, such as insulation technology and solar energy, building physics and constructions, renewable heating systems, and construction supervision and project management. The company supports customers in reducing their energy costs and minimizing their ecological footprint.

Technical Consulting & EngineeringSealing & InsulationSolar & Photovoltaics
View profile5(4)
SCHWITZGUEBEL BOIS Sàrl Logo

SCHWITZGUEBEL BOIS Sàrl 

Rougemont · Since 2017

SCHWITZGUEBEL BOIS Sàrl provides sheet-metal and roofing work as well as sanitary and heating installations. Services include roof renovation and inspection, solar thermal and photovoltaic systems, chimney lining, roof windows, lightning protection, complete sanitary installations and bathroom renovations, and advice on heating replacement (pellet, oil, heat pump, wood).

RoofingSolar & Photovoltaics
View profile3(4)
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
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.
Per page
102050
  • 1
  • More pages
  • 80
  • 81
  • 82
  • 83
  • More pages
  • 451
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.