Energy & Environment

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.