Energy & Environment

Norian AG 

Altendorf · Since 2018

The core activity of Norian AG is the sale of photovoltaic modules and related hardware, as well as consulting and supporting private and business customers in the planning and implementation of photovoltaic systems.

NOROVA Sàrl 

Echallens · Since 2024

The core activity of Norova is the installation of photovoltaic systems and the performance of energy analyses. Specifically, the company offers the following services: Installation of photovoltaic systems, Consulting and analysis of energy needs, Performance of energy analyses. The company positions itself as a partner for sustainable and efficient energy supply through solar energy.

Novacene AG 

Baar · Since 2021

Novacene IoT Ltd. offers solutions for optimizing building performance and efficiency through the installation of sensors and data analysis using data science. The company's core activity includes the digitization of buildings, the capture of energy consumption data, and the provision of insights to improve the energy efficiency, comfort, and productivity of buildings. The solutions are offered for various types of buildings, such as schools, factories, office buildings, and hotels.

novatlantis GmbH 

Zurich · Since 2017

The core activity of novatlantis is the provision of services and development in the areas of sustainable future, climate, energy, smart cities, mobility and electromobility. The company supports customers in processing their tasks and projects, particularly in the phases of strategy development, project planning and coordination. novatlantis positions itself as an innovation partner in pioneer regions and lighthouse projects, offering individual solutions for customers.

Noviens GmbH 

Zollikon · Since 2005

Novisse SA 

Castione · Since 2016

The core activity of Novisse SA is the distribution of innovative products and solutions for professional hygiene and cleaning, including cleaning agents, accessories, machines and services, with a focus on environmental friendliness and quality.

n+p biologie Sàrl 

Lausanne · Since 2022

The company n+p biologie Sàrl is primarily engaged in the conservation and protection of nature and the environment. The core activities include: * Mapping of natural habitats (TypoCH) * Inventory and mapping of plant and animal species (flora, amphibians, reptiles, birds, bats, insects, etc.) * Nature conservation and landscape management * Renaturation of water bodies and habitats * Ecological assessments and consulting * Environmental monitoring and evaluation * Research and development in the field of conservation biology The company also offers services such as the creation of nature conservation plans, the implementation of species inventories, and the development of protection concepts for endangered species.

NRbard, s.r.o., Bardejov, Zweigniederlassung Baar 

Baar · Since 2023

Nuances de Liège SNC 

Travers · Since 2020

Nuances de Liège is a manufacturer of accessories and bags made from Liège, a natural, sustainable and eco-friendly alternative to leather. The company's core activity encompasses the design, production and marketing of Liège products such as bags, accessories and other fashion items that are modern, lightweight and waterproof.

Nucfilm GmbH 

Cordast · Since 2009

Nucfilm GmbH provides consulting and products for environmental monitoring and develops analytical methods focused on natural radioactivity. Its offerings include Nucfilm discs for sample preparation in alpha spectrometry, as well as applied studies and methods such as aeroradiometry and investigations of radium anomalies in soils and groundwater.

N.U.P. Landschaftspflege AG 

Udligenswil · Since 2013

The core activity of N.U.P Landschaftspflege AG is landscape maintenance, including forestry, road maintenance, stump grinding, reclamation and nature conservation. The company offers all standard and special services in the "green sector" and positions itself as a partner for landscape maintenance work.

N.U.P Umweltpflegetechnik Immo AG 

Cugnasco · Since 2014

N.U.P Umweltpflegetechnik GmbH provides nature and environmental maintenance services, including watercourse maintenance, conservation work, slope and hedge care, and tree maintenance. The company also offers energy-wood processing, green-waste handling, transport services and workshop/repair services.

N.U.P Umweltpflegetechnik Immo AG 

Winterthur · Since 1998

N.U.P Umweltpflegetechnik GmbH provides nature and environmental maintenance services. Its offerings include water and landscape construction, tree care, slope and hedge maintenance, chemical-free weed control, watercourse maintenance, green-waste processing and energy-wood utilisation, specialist machinery work and an in-house workshop for service and repairs.

Nusseria GmbH 

Mettmenstetten · Since 2021

The company's core activity is the cultivation and marketing of hazelnuts, particularly the establishment of a hazelnut culture in Switzerland. This includes the planting and maintenance of hazelnut trees, the harvesting and marketing of hazelnuts, as well as the breeding and testing of various hazelnut varieties.

NVTerra SA 

Monthey · Since 2010

The core activity of NVTerra SA is the development, manufacture and marketing of water purification systems. The company offers various products and solutions for water purification, including the NVAqua, NVSani and NVCoag product lines, which are based on different technologies such as REDUCELF, OCEANEF, FERILEC and biofilters.

NXTCORPORATION AG 

Zurich · Since 2006

The core activity of NXT Corporation AG is to develop, advise and invest in innovative projects and companies in the field of sustainable food production, particularly in vertical farming and aquaculture, as a consulting and investment company. The company focuses on promoting high-tech solutions, such as artificial intelligence and IoT technologies, to improve the efficiency and sustainability of food production.

OBAG Kanalreinigungs-AG 

Zumikon · Since 1997

The company's core activity is pipe and sewer cleaning, including related services such as sewer TV inspections, manhole cleaning, suction work, maintenance of the sewage system, tightness testing and sewer rehabilitation.

OCTAGONS GmbH 

Zurich · Since 2023

The Octagons AG company focuses on promoting and implementing sustainable solutions and technologies, particularly in the field of circular economy. The company's core activity is to support businesses and organizations in implementing sustainable practices and reducing waste, in order to create a livable future for future generations. To this end, Octagons AG offers tailored services and solutions that are tailored to the individual needs and goals of its customers.

Octagram AG 

Baar · Since 2010

Octagram develops and offers modular solutions for security and building automation systems, with the goal of simplifying, scaling and making these systems sustainable. The company's core activity lies in the development and distribution of modular engineering platforms, such as the A1 Controller, which covers a wide range of applications in various industries, including security, building automation and environmental protection.

Oecogreen Container-Service AG 

Fahrweid · Since 2020

The core activity of Oecogreen Container-Service AG is the sustainable cleaning, repair and sale of waste containers in Switzerland.

oecon gmbh 

Gelterkinden · Since 2008

The core activity of oeCON GmbH is the development, manufacture and distribution of flue gas condensation systems, particularly for the desulphurization of flue gases. These systems are compact, maintenance-free and can also be retrofitted to existing systems.

oeeo, Laura Regli 

Scharans · Since 2022

The core activity of oeeo is environmental project consulting and soil science construction supervision, particularly in the areas of environmental project support, environmental construction supervision, soil science construction supervision (BGS), habitat mapping and landscape planning.

Oehrli Dach Fassade Solaranlage 

Adelboden · Since 2014

The core activity of Oehrli Dach Fassade Solar is the execution of work in the field of building envelope, particularly in roofing, facade work and the installation of solar energy systems.

Oeko-B AG 

Stans · Since 1987

The core activity of oeko-b ag is consulting and project planning in the field of applied ecology, particularly in the areas of: forest and forestry management, environmental and nature conservation, natural hazards and risk management, geoinformatics and landscape planning, as well as communication and regional development. The company provides in-depth consulting and project planning services for public and private clients, including federal, cantonal and municipal authorities, industry, trade and private individuals.

OEKO-TEX AG 

Zurich · Since 2015

The core activity of OEKO-TEX is the development and awarding of certifications and labels for the textile and leather industry, which guarantee the sustainability, safety and environmental compatibility of products. This includes, among other things, the testing of textiles and leather articles for pollutants, the evaluation of manufacturing processes and the certification of companies that meet certain environmental and social standards.

OekoWatt AG 

Lucerne · Since 2005

The core activity of OekoWatt AG is to advise and support customers on energy, climate and environmental issues, particularly in the development and implementation of climate protection measures, energy projects and the decarbonization of buildings and vehicle fleets. The company offers services such as building energy analysis, energy and CO2 balancing, potential analysis and environmental management systems, and supports customers in improving their resource efficiency and reducing emissions.

Oesch & Weber AG 

Embrach · Since 2020

The core activity of Oesch & Weber AG encompasses the provision of services and solutions in the following areas: * Roofing services (pitched roof, flat roof, roof renovation, roof maintenance, roof windows) * Chimney construction and cleaning (chimney systems, chimney covering, stove installation) * Solar systems (photovoltaics, solar thermal energy) * Ventilation cleaning The company offers comprehensive solutions for the maintenance and expansion of roofs, chimneys and solar systems, as well as for the cleaning of ventilation systems.

Oester Messtechnik GmbH 

Thun · Since 2016

The core activity of Oester Messtechnik GmbH is the capture, evaluation and interpretation of environmental measurement data in the field of landfills and biogas plants. Specifically, this includes: the localization of methane emissions and the capture of environmental measurement data; the monitoring and maintenance of landfills and biogas plants; the analysis and interpretation of measurement data, including the capture and processing of spatial data and time series; the consulting and recommendation of measures for the optimization of degassing systems and the remediation of contaminated sites; and the implementation of emission controls, leak checks and safety inspections in biogas plants. The company thus offers comprehensive services in the field of environmental monitoring and consulting for landfills and biogas plants.

OFFCUT Bern 

Bern · Since 2020

OFFCUT Bern operates a material market and a reuse platform supplying reusable and surplus materials. The organisation maintains a changing inventory for artists, schools and makers, and offers workshops, guided tours, material subscriptions and a rentable studio platform.

Officine Idroelettriche della Maggia SA 

Locarno · Since 1950

The company's core activity is the production of energy through the operation of hydroelectric power plants. The company focuses on the efficient use of hydroelectric power plants to produce energy and supplies it to its shareholders and other customers.

Ohm Elektro Solar GmbH 

Jona · Since 2022

The core activity of Ohm-elektro is the planning, installation and maintenance of photovoltaic systems, as well as the performance of electrical inspections and the provision of service offerings in the field of electrical engineering.

oikostat GmbH 

Ettiswil · Since 2008

The core activity of oikostat GmbH is the creation of ecological statistics, analyses and consulting services.

Öko-Bilanz GmbH 

Vitznau · Since 2019

The core activity of Öko-Bilanz GmbH is the analysis and reduction of environmental emissions from small and medium-sized enterprises (SMEs) and municipal administrations. This includes identifying areas for optimization from an ecological-economic perspective, developing strategies to reduce CO2 and environmental emissions, and supporting the communication of ecological achievements and the achievement of CO2 neutrality.

ökobüro flor GmbH 

Ennenda · Since 2024

ökobüro flor GmbH provides ecological consulting and mapping services. Its work includes botanical field surveys, habitat assessments, species and biotope protection and management plans, ecological enhancement projects, and the mapping, advising and control of invasive neophytes.

Ökobüro Weber & Frei AG 

Altstätten Sg · Since 2023

The core activity of Ökobüro Weber & Frei AG is consulting, planning and implementing projects in the field of nature and environmental protection, particularly in the areas of: * Professional care and enhancement of native habitats, flora and fauna * Vegetation science, management trials, habitat inventories, peatland protection and management concepts * Ecological construction supervision and ecological enhancement projects * Faunistic mapping (birds, butterflies, dragonflies, amphibians, reptiles) and species conservation * Comprehensive biodiversity consulting for agricultural businesses * Environmental education and nature photography The company has been offering its services since 1987, and since 2023 under its current company name.

ÖkoFEN-Schweiz GmbH 

Willisau · Since 2008

The core activity of ÖkoFEN is the development and production of pellet heating systems and air-water heat pumps, i.e. renewable heating solutions.

Oktogona SA 

Geneva · Since 2020

The core activity of Octogona is phytoremediation, specifically the cleaning of contaminated soils through the use of the Miscanthus plant. This includes soil analysis, planting, maintenance and harvesting of Miscanthus, as well as the transformation and sale of the plant as biomass. The company specializes in the remediation of soils polluted by human activities and offers solutions for sustainable agriculture and environmental protection.

Olika Sàrl 

Sierre · Since 2021

The core activity of olika is consulting and supporting projects in the field of energy transition and climate transition. The founder shares his long-standing knowledge and experience on his blog and offers his services to support customers in implementing their projects in this area.

Olinn Suisse Sàrl 

Geneva · Since 1993

The core activity of Olinn is to provide solutions for the management of professional equipment, including IT equipment, smartphones and cars, through services such as audit, purchase, financing, management and reuse of equipment, with a focus on sustainability and social responsibility.

Olonor ingénierie Sàrl 

Renens Vd · Since 2013

The company provides services in the field of energy efficiency and environmental protection, specifically: * Creation of energy certificates for buildings (CECB) * Conducting thermography and asbestos diagnostics * Consulting and support for the renovation and renovation of buildings * Promoting energy efficiency and renewable energies * Organizing conferences and events on topics such as energy efficiency and environmental protection.

Omneo AG 

Dübendorf · Since 2020

The core activity of Omneo AG is the planning, implementation and maintenance of heating, photovoltaic and electromobility solutions for buildings, particularly in the field of renewable energies. This includes consulting, planning and implementation of projects in the areas of heating replacement, photovoltaic systems, heat pump systems and electromobility solutions.

omniEnergie gmbh 

Stäfa · Since 2022

The core activity of omniEnergie gmbh is the planning, consulting and implementation of efficient energy technology solutions, particularly in the field of renewable energies, building technology, solar systems and e-mobility. This specifically includes: Energy consulting and planning, planning and installation of photovoltaic systems and heating systems, simulation of energy systems, e-mobility and battery storage solutions, heating replacement and optimization, thermal insulation and building technology. The company also offers impulse consulting and certified energy consulting for SMEs and commercial enterprises.

OmniWatt AG 

Baar · Since 2023

The core activity of OmniWatt AG is the planning, implementation and maintenance of large-scale solar power plants.

OMPEX AG 

Zurich · Since 2006

The core activity of Ompex is the provision of energy services, particularly in the areas of: * Consulting * Trading & Portfolio Management * Process Support * Market access and settlement for electricity, gas, CO2 and certificates of origin. Ompex acts as an independent energy service provider and supports customers in mastering the challenges of the liberalized European energy markets.

One Planet Sustainables, Inh. Michel 

Roggwil Be · Since 2021

The core activity of One Planet Sustainables is the development, production and distribution of reusable, eco-friendly feminine hygiene products, particularly sanitary pads, with the aim of combating period poverty in low-income countries while protecting the environment.

onewallfree AG 

Ruswil · Since 2021

onewallfree AG connects solar power producers and consumers through a marketplace for ZEV, vZEV and local electricity communities. It provides consulting, network-topology checks, metering-data management, billing and debt-collection services to set up and operate these self-consumption arrangements.

Oommen Sahlender Consulting 

Frick · Since 2024

The core activity of "aos consulting" is the consulting and project support of architects, construction companies and investors in the planning and realization of sustainable buildings. This includes, in particular, the creation of life cycle assessments, the implementation of building certifications (e.g. Minergie-ECO, SNBS, DGNB, LEED, WELL) and the development of strategies to reduce the environmental impact of buildings.

OPEN Optimizing Energy SA 

Poschiavo · Since 2022

The core activity of OPEN Optimizing Energy SA is the optimization and valorization of potential energy through the production of electricity from renewable sources, the improvement of electrical interconnections and investments in sustainable asset classes, in order to promote a sustainable energy transition.

OptimalGo SA 

Chavannes-De-Bogis · Since 1945

The core activity of OptimalWay/OptimalGo is the planning, development and installation of systems for autonomous energy generation, particularly through the use of renewable energies such as solar, geothermal and wind energy. The company offers solutions for capturing and optimizing these energies to make buildings and facilities independent of external energy sources.

OptimaSolar Freiamt Genossenschaft 

Benzenschwil · Since 1991

The core activity of OptimaSolar Freiamt Genossenschaft is the production and distribution of solar power and other renewable energies. The company operates photovoltaic systems and hydroelectric power plants to generate electricity, which it supplies to private individuals and companies. In addition, the company also offers services such as certificates of origin and pooling for the self-consumption of solar power.