Energy & Environment

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.