Energy & Environment

BST Impact Sàrl 

Les Acacias · Since 2021

The core activity of BST-Impact sàrl is to advise and support companies and organizations in integrating sustainability, social responsibility, and human rights into their business strategies and processes. This includes services such as developing CSR strategies, implementing ESG standards, conducting human rights due diligence assessments, promoting gender equality and diversity, equity, and inclusion (DEI), as well as supporting communication and reporting on sustainability aspects.

Büchel-Hoop Photovoltaik AG, Ruggell (LI), Zweigniederlassung Schweiz, Salez 

Salez · Since 2012

The core activity of Büchel-Hoop Photovoltaik AG is the planning, installation and maintenance of photovoltaic systems as well as the provision of energy management solutions, including energy storage, emergency power and blackout solutions, electromobility, billing systems, hot water and intelligent feed-in management systems.

Bucher Eltel 

Fraubrunnen · Since 2014

The core activity of Bucher-Eltel is the sale and installation of high-quality photovoltaic and battery storage systems.

Buholzer Marcel AG 

Meggen · Since 2003

The core activity of Buholzer Marcel AG is the planning, realization and maintenance of building envelopes, including roofs, facades and photovoltaic systems. The company offers specialized services such as roofing, facade construction, photovoltaics, lightning protection, roof windows and roof maintenance.

Bulloni & Riso Sagl 

Cadenazzo · Since 2020

The core activity of Bulloni & Riso Sagl consists of planning, installing, maintaining and repairing various types of systems, including: sanitary and heating systems, solar systems, air conditioning and ventilation systems, burners and boilers, pools and their maintenance, irrigation systems, drinking water treatment, and the sale and service of burners and boilers. The company also offers various services such as pipe cleaning and decalcification, boiler maintenance, and system restructuring.

B. und H. Schuler-Rozzi, Schreinerei und Sanitäranlagen 

Bergün/Bravuogn · Since 2003

The core activity of Schuler-Rozzi encompasses three main areas: 1. **Carpentry/Joinery**: Manufacturing of carpentry products, particularly from regional solid woods, for interior finishing and furniture. 2. **Plumbing/Heating**: Installation and servicing of plumbing and heating systems, including alternative heating systems and connection to the district heating network. 3. **Solar**: Planning and installation of solar systems for the utilization of solar energy. The company thus offers a combination of traditional craftsmanship in carpentry and modern technologies in plumbing, heating and solar technology.

Bureau DAC Sàrl 

St-Blaise · Since 2018

The company Bureau DAC offers services in the fields of environment, territory and sustainable development. The core activities include: project piloting and accompaniment, strategy development and implementation, facilitation and moderation of participatory processes, environmental and territorial analyses, consulting and support for the implementation of sustainable development projects, and education and training in the field of sustainable development and environmental protection. The company collaborates with various stakeholders, including public institutions, private companies, universities and non-governmental organizations, to develop and implement sustainable solutions for environmental and territorial issues.

Bureau d'études biologiques Raymond Delarze 

Aigle · Since 1999

Büren Wärme AG 

Büren An Der Aare · Since 2015

The company's core activity is the supply of electricity and water to customers, including the provision of energy products, eco-certificates, tariffs and services in the field of energy and water supply.

Büro Eco- und Umweltbonus Reto Frei 

Weinfelden · Since 2008

Büro für ökologische Optimierungen GmbH 

Tuggen · Since 2001

The company's core activity is the management of a foundation focused on the ecological and landscape enhancement of the Lauerzersee nature reserve. This includes the implementation of projects, construction management, fundraising, preparation of foundation board meetings and the execution of foundation board decisions.

Burri Smart Power Solution GmbH 

Safnern · Since 2011

The company's core activity is the provision of services in the field of electrical installations, photovoltaics and solar systems.

Voltwerk AG 

Flawil · Since 2003

The core activity of Burtscher Elektro- und Gebäudetechnik AG encompasses the planning, installation, and maintenance of electrical and building technology systems, particularly in the field of renewable energies, such as photovoltaics, e-mobility, and battery storage. This also includes the installation and maintenance of solar and photovoltaic systems, energy management systems, electrical installations, household appliances, IT and network systems, as well as automation and smart home solutions.

Butig74, A. Schöni 

Aedermannsdorf · Since 2022

The company Butig74 has a core activity that focuses on several areas: Woodworking: manufacturing furniture from reclaimed wood such as pallets and wine crates, as well as building raised beds and terrace floors. Fire cooking: leading workshops on cooking over an open fire, as well as catering and events with fire cooking. Gardening: mindful gardening, permaculture tours, and sales of garden products. Sales of products: operating an online shop selling woodworking, garden products, and other products. Overall, the company's core activity can be described as a combination of craftsmanship, education, and sales of products in the areas of gardening, woodworking, and fire cooking.

BUYECO Sàrl 

Prangins · Since 2014

The core activity of BUYECO is to provide a platform for the trading and management of certificates of origin for renewable energies, particularly for electricity producers, with the aim of supporting the development of renewable energies in Switzerland and worldwide.

Bym Solar GmbH 

Bern · Since 2023

The core activity of BYM Solar is the planning, installation and maintenance of solar energy solutions, particularly the installation of solar systems, to help customers reduce their energy costs and use environmentally friendly energy.

BZA AG 

Raperswilen · Since 2001

The core activity of BZA AG Solar is the planning, construction, maintenance and operation of photovoltaic systems as well as the sale of solar power. The company also offers services such as energy consulting, analysis and simulation, planning, construction, installation, maintenance and computer-based maintenance of photovoltaic systems.

BZ Montage GmbH 

Zofingen · Since 2015

BZ Montage GmbH carries out installation works for resin‑cast and metal‑enclosed busbars, cable trays and wire‑mesh cable ducts, and complete photovoltaic systems. Services include potting and testing of busbar couplings with documentation and measurement protocols, on‑site coppering and touch protection, electrical installations under an installation permit, and general assembly work.

Càd EcoLogis SA 

Péry · Since 2020

Càd EcoLogis SA operates a district heating system (chauffage à distance/CAD) supplying heat to connected buildings.

CADIOM SA 

Le Lignon · Since 1999

CADIOM SA operates a district heating network supplied with heat recovered from the Cheneviers waste incineration plant. It provides heat to residential and tertiary customers via a primary pipe network and heat-exchange substations, using superheated water circulated in a closed loop.