Sustainability Sector in the
Canton of Solothurn
64 companies in Sustainability Sector based in the Canton of Solothurn — name and year of registration from the commercial register.
50 of 64 companies
Dryden Aqua Distribution AG
Since 2012 · 11–20 empl.5.0(36)
The core activity of Dryden Aqua is the development, manufacture and distribution of innovative, sustainable and cost-effective water treatment solutions, particularly activated carbon filter media such as AFM, for various applications including drinking water treatment, wastewater treatment, aquaculture, swimming pools and industrial process water treatment.
Diotrol AG
Since 2000 · 21–50 empl.4.6(28)
The core activity of Diotrol AG is the development, production and sale of ecological wood protection and wood care products based on plant oils from renewable raw materials.
UMWEKO GmbH
Since 2005 · 1–10 empl.
The core activity of Umweko is consulting, inspection, training and education in the field of biomass, particularly in the areas of composting, biogas, sewage sludge and wastewater treatment plants, as well as environmental expertise and plant operation.
Eartheffect AG
Since 2010 · 1–10 empl.
The Eartheffect GmbH company focuses on promoting sustainability through participation and education. The core activities include: Developing and implementing workshops, projects, and offers that support organizations and companies in developing and implementing a sustainable and circular economy strategy. Creating online courses and learning platforms, such as "Shape the Circle" and "Future Perfect", that support companies and educational institutions in integrating sustainability and circular economy. Providing consulting and training services for gastronomy businesses to promote energy efficiency and sustainability. Organizing events and trade fairs, such as the "Piazza Circulaire", to inspire the general public and local businesses to adopt sustainable practices. Developing interactive offers, such as "Circular Quest", to raise awareness and understanding of circular economy. Overall, the company's focus is on promoting sustainability and circular economy through education, participation, and consulting.
Linda Thomas Concepts
Since 2012 · 1–10 empl.
The core activity of Linda Thomas' company is the transfer of knowledge and experience in the field of space cleaning, cleaning and maintenance, with a particular focus on ecological and sustainable methods. This includes the creation of books, the organization of events, seminars and online courses, as well as consulting and training individuals and institutions in this field.
Energiewirt GmbH
Since 2012 · 1–10 empl.
Energiewirt GmbH develops and manages agricultural biogas projects, offering project development, business development and site-specific solutions for producing and upgrading biogas for power, fuel or grid injection.
Cleantech Businesspark AG
Since 2015 · 11–20 empl.
The core activity of Cleantech Businesspark AG is to provide spaces and infrastructure for founders and companies specializing in applied future technologies, particularly in the cleantech industry. The company operates a startup center and innovation forum that brings together companies and research institutions to promote innovations and sustainable technologies.
Weit&Breitsicht GmbH
Since 2015 · 11–20 empl.
The core activity of Weit&Breitsicht GmbH is consulting and project work in the areas of sustainability, energy, mobility, economy and politics. The company offers services such as spatial planning, communication, education and school gardens, and deals with topics such as environmental protection, sustainable development and political consulting.
Koltiva AG
Since 2017 · 101–500 empl.
The core activity of Koltiva is the digital transformation of agricultural businesses and the creation of sustainable and transparent supply chains. To achieve this, Koltiva offers a range of solutions, including: digital tracking and tracing of agricultural products; training and coaching for farmers and agricultural companies; development of climate-smart agricultural designs and implementations; provision of micro-insurance and responsible credit for farmers; and support for agricultural companies in implementing sustainable practices and complying with environmental and social standards. Koltiva focuses on the areas of agriculture, sustainability, and digital transformation, and offers its solutions in 66 countries.
Stiftung ELIANT
Since 2017 · 11–20 empl.
The core activity of ELIANT is the promotion and support of initiatives and projects in the field of applied anthroposophy, particularly in the areas of: * Integrative medicine and health promotion * Waldorf/Steiner pedagogy and education * Biodynamic agriculture and nutrition * Curative education and social therapy * Economy and social development. The company is also committed to European policy and advocates for a sustainable development perspective. It offers consulting, guidance, information, and events to support people on their path to healthy change.
Kisters Schweiz GmbH
Since 2018 · 21–50 empl.
KISTERS is a provider of solutions and services in the fields of environment, energy, water, and occupational safety. The core activities include: environmental consulting and management, development and distribution of software solutions for managing environmental data, hazardous substances, and hazardous goods transport, provision of 2D and 3D printers, scanners, and viewers, solutions for the energy market, including cloud solutions, smart grid, and control technology, provision of environmental sensors and measuring devices, data management and analysis for the environmental and energy sector, and consulting and support for the digitalization of processes and systems. Overall, the core activity of KISTERS can be described as 'Environmental and Energy Management Solutions'.
EcoTerra AG
Since 2020 · 11–20 empl.
The core activity of EcoTerra AG is the sustainable and soil-conserving treatment of soils, particularly in the area of processing, distribution and improvement of excavated material and soil. This includes services such as: soil improvement and upgrading, logistics and transport of soil material, sowing, fertilization and care of areas, harvesting and utilization of biomass, slope construction and maintenance, hydroseeding and mower robot maintenance. The company focuses on the reuse of excavated material and soil to conserve resources and protect the environment.
Institut für angewandte Pflanzenbiologie AG
Since 2018 · 11–20 empl.5.0(1)
The company's core activity is the monitoring and analysis of forest ecosystems and urban trees, including the study of influences such as climate change, air pollutants and soil compaction. This also includes laboratory analysis of plant, soil and water samples, as well as conducting measurements and observations in forest and urban areas.
FishConsulting GmbH
Since 2019 · 1–10 empl.
The core activity of FishConsulting GmbH is focused on aquatic ecology and fish biology, particularly in the examination and consulting of flowing waters, their passability and ecology. The core competencies include the examination of fish migration, fish populations and the effectiveness of revitalization projects. This also includes the implementation of telemetric studies, effectiveness controls, video monitoring, habitat analyses, population assessments, electric fishing and the creation of concepts for the restoration of near-natural river sections.
fokus-e gmbh
Since 2021 · 11–20 empl.
The core activity of fokus-e is energy consulting for industry, commerce and the public sector, with a focus on energy and resource efficiency, decarbonization and the achievement of climate goals. This includes services such as energy check-ups, the development of decarbonization roadmaps, the optimization of facilities and the support of companies in the implementation of projects in the field of renewable energies and resource efficiency.
KONTCH's E & E GmbH
Since 2018 · 1–10 empl.
The core activity of KONTCH's E&E is the cultivation, processing and sale of coffee. The company practices sustainable agriculture to produce high-quality coffee and also offers special coffee creations developed with biological expertise. Furthermore, the company is committed to social projects, particularly in the areas of education and social well-being of its employees and the surrounding communities.
BV Kompostieranlage Oensingen AG
Since 1994 · 1–10 empl.4.8(9)
The core activity of BV Kompostieranlage Oensingen AG is the composting of green waste and the production of biogas and electricity through anaerobic digestion. The company operates a composting plant and a biogas plant, where green waste is processed into compost and biogas. The biogas is then converted into electricity. Additionally, the resulting digestate is used as fertilizer in agriculture.
KRAMER fashion & design
Since 2012 · 1–10 empl.5.0(7)
The core activity of TOM KRAMER Solutions is the cultivation and sale of Paulownia trees as a sustainable solution for climate protection and CO2 compensation. The company offers businesses the opportunity to actively contribute to climate protection by purchasing Paulownia trees and simultaneously achieve their environmental goals. The services include the planting, care and certification of the trees as well as the issuance of recognized CO2 certificates.
Enerhaus Engineering AG
Since 2011 · 11–20 empl.5.0(3)
The core activity of EnerHaus Engineering GmbH is planning and consulting in the field of building technology and energy, particularly in the areas of HLKS planning (heating, ventilation, air conditioning, sanitation) and energy concepts. The company also offers services such as energy certificates and training for building technology planners.
Smart Sanieren GmbH
Since 2020 · 1–10 empl.5.0(7)
Smart Sanieren GmbH provides independent energy consulting for homeowners, carrying out EnergieCheck assessments and GEAK Plus reports to evaluate heating systems and renovation options. Services include technical system planning, assistance with permits and funding applications, and project coordination during implementation.
cleanosign GmbH
Since 2021 · 1–10 empl.
The core activity of cleanosign is the cleaning, maintenance and conceptualization of photovoltaic systems in Switzerland. This includes in particular: * Professional cleaning of solar modules to ensure their maximum performance and lifespan. * Periodic control flights using drone technology to monitor the condition of the systems and identify potential problems. * Creation of customized concepts for planning, optimization and life extension of photovoltaic systems. * Thermographic inspections to document the condition of the systems and identify potential problems. The company offers these services to both private and business customers, focusing on promoting a clean and efficient energy future.
Rangernetz GmbH
Since 2021 · 1–10 empl.
The company Rangernetz GmbH offers services in the field of nature interpretation, environmental education, and project development. The core activities include: Organization and implementation of excursions and environmental education programs, Development of customized solutions for the valorization and protection of nature, Sensitization and guidance of visitors and users of nature, Promotion and protection of biodiversity, Design and implementation of projects and tasks in the field of nature and environment. The company positions itself as an expert in the development of creative and sustainable solutions to protect, enhance and bring nature closer to people.
Verein Wisent im Thal
Since 2022 · 1–10 empl.
The core activity of the company 'Wisent im Thal' is the reintroduction and protection of European bison in the Jura region of Switzerland. This includes the care and monitoring of free-roaming bison test herds, the implementation of guided tours and educational programs, as well as the sale of souvenirs and the acquisition of supporters and donors for the project.
KP Wärme- & Solartechnik GmbH
Since 2023 · 1–10 empl.5.0(3)
The core activity of KP Wärme und Solartechnik GmbH is the planning, implementation and maintenance of efficient and sustainable heating technologies, including the installation of heat pump systems and the renovation of heating systems, as well as consulting and implementing solar technology solutions for private and commercial customers.
Wanner Expert GmbH
Since 2011 · 1–10 empl.5.0(1)
The core activity of WANNER Expert GmbH is the implementation of emission measurements on combustion and industrial plants throughout Switzerland, in particular to verify compliance with the applicable limit values of the Air Pollution Control Ordinance (LRV).
EnergieBauStelle GmbH
Since 2023 · 1–10 empl.
EnergieBauStelle GmbH provides consulting, concept and planning services for energy-related issues in buildings. Led by an architect and construction manager, the practice supports clients through advice, concept development, planning, implementation, handover and operation, including heating replacement and an initial "renewable heating" consultation (free if the existing heating system is older than 10 years).
JSK Marketing GmbH
Since 2020 · 1–10 empl.4.3(4)
The core activity of JSK Marketing GmbH is the development, manufacture and distribution of products for health, well-being and sustainability, particularly in the areas of air purification, floor cleaning and sleep comfort. The company offers a wide range of products, including air purifiers, vacuum cleaners, floor cleaning machines and accessories, positioning itself as an expert in healthy living conditions.
Butig74, A. Schöni
Since 2022 · 1–10 empl.5.0(1)
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.
Ohanas Kinderkleiderbörse Steiner
Since 2026 · 1–10 empl.
Ohanas Kinderkleiderbörse Steiner operates a children’s clothing exchange for baby and children’s clothing as well as other children’s items. Its offer includes second-hand clothing, shoes, accessories, toys, seasonal items, and consignment sales; an online shop is also available.
Gasche Bau und Energie GmbH
Since 2015 · 1–10 empl.
Gasche Bau und Energie GmbH provides external building administration and client advisory services for municipalities, and supplies interim project management and temporary leadership for industrial projects. The company also carries out energy analyses of industrial processes and supports procurement and infrastructure maintenance projects.
ALT Taschen GmbH
Since 2016 · 11–20 empl.
The core activity of ALT Taschen is to manufacture bags from old, previously used materials such as tarpaulins, which are then offered as employee gifts or give-aways for companies.
ADANSONIA GmbH
Since 2016 · 11–20 empl.
The core activity of ADANSONIA GmbH encompasses the planning, consulting and implementation of sustainable and nature-based garden facilities, playgrounds and urban planning projects. This also includes the trade in natural products such as spices and the development of solutions for water retention and biodiversity in urban spaces. The company also offers a platform for the sale of products for garden and landscape construction, such as compost extraction devices and green roof systems.
DiZtribution GmbH
Since 2024 · 1–10 empl.
DiZtribution GmbH distributes sustainable beverages and food products. The company provides distribution services for beverage and food brands.
Daniel Meister Consulting
Since 2025 · 1–10 empl.
Daniel Meister Consulting provides IT consulting, AI consulting, and environmental management services. Its work includes project management, software architecture, DevOps, web development, the introduction of AI projects, training, and sustainability reporting.
SYMBO GmbH
Since 1998 · 1–10 empl.
The core activity of Symbo GmbH is the development, manufacture and implementation of ecological small wastewater treatment plants, particularly sand filter treatment plants, for the purification of wastewater, as well as the conduct of investigations and services in the field of water and soil quality, including source and groundwater investigations and soil quality analyses.
suntec4u GmbH
Since 2011 · 1–10 empl.
Purposelab GmbH
Since 2019 · 1–10 empl.
SDC Umwelttechnik GmbH
Since 2025 · 1–10 empl.
Ecotec Umwelttechnik AG
Since 1991 · 1–10 empl.
Remac Energie Technik GmbH
Since 1996 · 1–10 empl.
Christoph Ziegler
Since 1996 · 1–10 empl.
KLIMEX Klaus Klook
Since 2001 · 1–10 empl.
Umweltdesign Blatter
Since 2009 · 1–10 empl.
Verein Energieallianz
Since 2009 · 1–10 empl.
SUMTEC GmbH
Since 2011 · 1–10 empl.
Globedev AG
Since 2012 · 1–10 empl.
Normal GmbH
Since 2015 · 1–10 empl.
E. Flückiger AG, Zweigniederlassung Olten
Since 2016 · 1–10 empl.
MehrWertZiegler-GmbH
Since 2017 · 1–10 empl.
HS Beratungsgesellschaft GmbH
Since 2018 · 1–10 empl.
Sustainability Sector in the Canton of Solothurn
Sustainability Sector in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of October 11, 2026
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