Energy & Environment

Melanie Williams Consulting Sàrl 

Nyon · Since 2012

The core activity of Melanie Williams Consulting is to provide consulting services in the field of sustainability and environmental protection, particularly in the areas of: strategy consulting for companies aiming to transition to a circular and low-carbon economy, market analysis and research, communication consulting, support in implementing sustainability strategies, and consulting on environmental compatibility and climate protection issues. The company supports customers in developing and implementing sustainability strategies, offering specific services such as evaluating processes and products in terms of their environmental compatibility and CO2 efficiency.

Meraki by Margreet Groot 

Scuol · Since 2020

The core activity of Meraki by Margreet Groot is the development, implementation and communication of corporate initiatives in the field of sustainability, particularly in the areas of climate change, community development and women's empowerment, mainly in agriculture and among small-scale farmers.

Merrybeeri Zurflüh 

Pratteln · Since 2022

The company Merrybeeri specializes in upcycling, i.e. it takes old, unusable items and transforms them into new, usable products such as bags, wet bags, turbans, beeswax cloths and other articles. The company sells these products online and at markets, and also offers workshops where customers can learn how to create their own upcycling products.

Messerli Holzbau AG 

Wohlen B. Bern · Since 2007

Messerli Holzbau AG is a timber construction company providing consulting, planning and execution of wood-based building projects. Services include residential construction, agricultural and commercial buildings, element and façade construction, interior finishing, windows and doors, stair construction and solar/photovoltaic systems.

Metallit AG 

Baar · Since 1996

The core activity of Metallit AG is the trade in metals, particularly primary and secondary metals, including the recycling and reprocessing of metals, with the aim of an environmentally friendly and economically optimal utilization.

Metanord SA 

Monte Carasso · Since 1997

The core activity of Metanord is the planning, construction and management of gas pipelines for the transportation of natural gas, as well as the supply of customers with natural gas, biogas and gas as a fuel.

MET Capital Partners AG 

Baar · Since 2017

MET Capital Partners AG is an investment platform linked to the MET Group CEO that serves as a holding and investment vehicle. It holds ownership and investment interests in companies within the MET Group.

MET Gas and Energy Marketing AG 

Baar · Since 2014

MET International AG 

Baar · Since 2010

MET International AG manages wholesale and trading activities for MET Group’s natural gas, LNG and power portfolios, including LNG supply management. It provides portfolio optimisation, structured trading and market-facing services and administers the group’s environmental certificates portfolio.

MET ManCo AG 

Baar · Since 2012

MET Renewables AG 

Baar · Since 2017

MET Renewables AG is the Green Asset Division of MET Group, focusing on the development and production of onshore wind and solar energy.

Mettler & Co., Kaminfeger- und Dachdeckergeschäft KLG 

Winterberg Zh · Since 2004

The core activity of Mettler & Co. is the provision of services in the chimney sweep and roofing business, including chimney sweep work, measurement technology, maintenance, heat technology, ventilation, pitched roof, flat roof, facade and insulation, as well as planning and consulting for renovations, conversions and new buildings in the Zurich region.

M. Grunder Abbruch + Entsorgung GmbH 

Münchenstein · Since 2010

M. Grunder Abbruch + Entsorgung GmbH performs dismantling of heating, ventilation, sanitary and cooling systems, pipelines and oil tanks (including decommissioning), provides construction-site waste disposal, and handles the careful installation of new equipment or machines into buildings.

Michel Ostertag GmbH 

Himmelried · Since 2010

The core activity of Michel Ostertag GmbH is energy consulting, energy planning, photovoltaic systems, building physics and building thermography, particularly in the areas of energetic renovation, energy efficiency and sustainability, heating and solar as well as building physics and building thermography.

Michel Sanitär + Heizung GmbH 

Bönigen B. Interlaken · Since 2016

The core activity of Michel Sanitär + Heizung GmbH consists of planning, executing and maintaining heating and sanitary installations, including the assembly and repair of heating systems, sanitary appliances and pipes, as well as the implementation of bathroom renovations and the installation of thermal solar systems and heat pumps.

Micocene Sagl 

Locarno · Since 2022

The core activity of the company Micocene is the cultivation of edible and functional mushrooms.

MicroChange AG 

Walchwil · Since 2021

The core activity of MicroChange is the development and provision of solutions for water pollution problems, particularly through the development of modular product components for water purification, including mechanical filtration, adsorption and other techniques. The company focuses on developing cost-effective and environmentally friendly solutions that meet the United Nations' Sustainable Development Goals.

MicroTrans Chris Rusterholz 

Au Zh · Since 2019

The core activity of Microtrans includes: * Clearing and disposal of apartments, cellars, barns and other premises * Small transports of furniture, plants, equipment and other bulky or sensitive items * Evacuation of apartments, cellars, barns and other premises * Assembly of USM furniture. The company offers these services in the regions of Richterswil, Wädenswil, Horgen and Thalwil.

Microwave Solutions GmbH 

Riehen · Since 2019

The core activity of Microwave Solutions GmbH is the development and application of microwave technology for recycling and conversion of materials, particularly for the depolymerization and cracking of plastics, rubber, biomass and other waste materials into valuable chemicals, fuels, gases and hydrogen. The company offers a modular and cost-effective solution for the material recycling industry.

MieleVita Sàrl 

Nyon · Since 2023

The core activity of MieleVita is to support beekeepers and enable them to focus on a smaller number of bee colonies, ensuring higher quality care and protection of the bees. This is achieved through a sponsorship model, where private individuals or organizations sponsor bee colonies, thereby enabling beekeepers to professionalize their activities and improve the health of the bee colonies.

Mieterstrom GmbH 

Adliswil · Since 2022

The core activity of Mieterstrom is the use of local, renewable solar energy for electricity production and distribution, particularly in the context of tenant electricity offers, in order to contribute to climate protection and the energy transition 2050.

MILANI RECYCLING Sagl 

Mezzovico · Since 2024

Milenkovic Energy Solutions 

Spreitenbach · Since 2020

Milenkovic Energy Solutions specializes in the planning, development and implementation of energy efficiency solutions, particularly in the areas of heating, air conditioning, refrigeration, ventilation and photovoltaics. The core activities include the conception and implementation of customized solutions for solar thermal and PV systems, wood chip firing systems, heat pumps, district heating, biomass and gas/oil boilers, as well as the development of energy optimization concepts.

Mil-tek SA 

Lausanne · Since 2002

The core activity of Mil-tek SA/AG is to provide services and solutions in the field of waste management, particularly waste separation, compaction and recycling, for companies and industries of all sizes. The company offers customized waste disposal services tailored to the specific needs of various industries such as LEAN manufacturing, automotive, hotels and restaurants, production and logistics, retail, construction and renovation, healthcare and schools and universities.

Minde Technologies GmbH 

Fehraltorf · Since 2023

Minde Technologies GmbH provides ICT and renewable energy solutions and facilitates technology partnerships between Europe and China. The company delivers ICT services (networking, system design, application development), OEM/ODM production support, renewable energy consulting, market analysis and system integration, and supplies solutions such as 5G private networks, fiber-optic transceivers, energy storage systems and EV charging solutions.

minowa gmbh 

Scheunen · Since 2023

minowa gmbh provides industrial electrical installations, engineering, electrical inspections, automation, photovoltaic systems and e-mobility solutions. The company offers project planning, implementation and maintenance of electrical installations for industrial, commercial, municipal and private clients.

Miotto AG 

Reinach Bl · Since 1976

The core activity of Miotto AG is the installation, maintenance, repair and renovation of heating systems, as well as the planning and installation of solar systems, including photovoltaic and solar thermal systems, for private and business customers in the Basel region.

Mirako GmbH 

Bolligen · Since 2013

Mirako GmbH operates across several business areas and develops product ideas, platforms and services. Its offerings include Solaronic (plug-and-play solar systems for balconies, terraces, roofs and gardens), 7eleven Webdesign (web design, social media, SEA and IT services) and Where to Brunch (a Swiss brunch directory).

Missionaries of Charity 

Zurich · Since 2020

The core activity of the company 'Flying Croissant' consists of the weekly collection of leftover baked goods from small bakeries and their distribution to needy, charitable organizations in Zurich.

Mittner Engineering AG 

St. Moritz · Since 2011

The core activity of Mittner Engineering AG is the planning, control and servicing of electrical systems, including: electrical planning, installation of high and low voltage systems in new and renovation projects, energy optimization, renovation of lighting systems, planning and installation of photovoltaic systems, planning and installation of alarm systems, planning and installation of UKV/LWL and TV/SAT systems, and building automation. The company offers these services as an electrical planner and service provider in the regions of St. Moritz, Müstair, Märstetten and surrounding areas.

M + K Bausysteme AG 

Zug · Since 1988

The core activity of M+K Bausysteme AG is the planning, development and distribution of assembly solutions for building envelopes, particularly for roofs and facades, including the manufacture and trade of corresponding building components and accessories. A key focus is on the development of complete solutions for photovoltaic systems.

MK ENERGIE SA 

Corseaux · Since 2024

MK ENERGIE SA offers energy solutions in photovoltaics, solar systems, charging stations, heating and electrical services.

MKS Schachtsanierung GmbH 

Weinfelden · Since 2019

The core activity of MKS Schachtsanierungen is the renovation, refurbishment and repair of sewer shafts, as well as the sale of products in these areas. Specific activities include: shaft renovation, plastering and tiling, connections, grouting, sealing, shaft throat and structure, reprofiling, and installation of stainless steel ladders. The company specializes in the maintenance and renovation of shaft structures in the sewer network, using special mineral mortars.

ML Umwelttechnik GmbH 

Lyss · Since 2008

The company is primarily active in environmental technology, particularly in the fields of wastewater and water treatment. The core activities include the development, manufacture, and distribution of products and solutions for the treatment of wastewater, rainwater, and industrial waste, such as oil separators, grease separators, small wastewater treatment plants, wastewater treatment plants, hose pumps, and water and wastewater pumps. In addition, the company also offers services such as engineering, OEM, and activated carbon filters. The products and solutions are offered to various industries such as the food industry, chemicals, pharmaceutical industry, agriculture, mining, and the paper and pulp industry.

MM Consulting Switzerland Sàrl 

Geneva · Since 2022

MM Consulting Switzerland Sàrl is a developer and orchestration platform for renewable energy and infrastructure projects. The company provides project development, technical and legal due diligence, PMO and project controlling, land and rooftop origination, asset trading, PPA/ESCO solutions and geo‑consulting for PV, agri‑PV, BESS and data centers.

Mohler Transporte-Entsorgung AG 

Eschenbach Sg · Since 2024

Mohler Transporte-Entsorgung AG provides waste transport and disposal services for commercial clients, including collection of used oil, batteries, electronic scrap and food-service waste. The company advises on quantities, containers and costs and operates its own fleet for pickups.

MojaConsult GmbH 

Köniz · Since 2011

The core activity of MojaConsult GmbH is consulting and services in the Cleantech sector, particularly in the areas of renewable energy, electromobility, connected mobility, building automation and IT services such as software integration, Google Apps and Jimdo, as well as telecommunications.

Moki AG 

Regensdorf · Since 2006

The core activity of Moki AG includes storage, delivery, dismantling, disposal and installation, particularly in connection with goods such as heating boilers, boilers, pipes and air ducts.

Molteni & Co SA 

Castione · Since 1981

Molteni & Co SA provides electrical engineering services including system design, installation and maintenance, telecommunications solutions, photovoltaic systems and home/building automation with KNX.

Mondays AG 

Küsnacht Zh · Since 2018

monika schaffner, integrative geography 

Aeschlen Ob Gunten · Since 2018

The company's core activity is the development, consulting and implementation of projects in the field of sustainable development, particularly in the areas of environmental protection, water and landscape conservation, as well as regenerative tourism. The company offers services such as project management, coordination and consulting for companies, organizations and institutions to promote sustainable solutions for the development of rural areas and environmental protection.

Monnay Electricité SA 

St-Maurice · Since 1991

The core activity of Monnay Electricité SA consists of planning, installing and maintaining electrical systems, including renewable energies such as solar energy and heat pumps, as well as providing services in the field of electrical engineering, such as repairs, renovations and consulting.

Rickmo AG 

Schenkon · Since 2016

The core activity of Montasol AG is the planning, installation and maintenance of photovoltaic systems, as well as consulting and supporting customers in the use of solar power. The company offers needs-based and individual solutions for the optimal use of solar energy and supports customers in investing in photovoltaic systems.

montavent AG 

Zurich · Since 2007

The core activity of montavent ag is the development, manufacture and distribution of mounting systems for solar power plants, in particular substructures and short rail systems for the efficient and safe installation of solar modules on flat roofs and metal roofs.

Monteiro Récupération Sàrl 

Sierre · Since 2023

The core activity of Monteiro Récupération is the recovery, sorting and recycling of metals. Specifically, this includes: the collection of metals from companies and individuals; the sale of metals to companies specialized in recycling; the sorting of various metal types in a depot; the disposal of metals such as copper, brass, aluminum, zinc, tin, bronze, lead and others; the provision of containers for metal collection; and the collection of metals from customers, including heavy or hard-to-reach parts using a crane truck.

Montfort Naturschutz GmbH 

Arlesheim · Since 2018

The core activity of Montfort Naturschutz GmbH is the maintenance and care of nature reserves, protected areas, extensive areas, wetlands and species-rich areas, including the maintenance of habitats such as dry and semi-dry meadows, ponds, ruderal areas, tall herb communities, natural hedges and dry stone walls.

Moos Heizungen AG 

Otelfingen · Since 2003

The core activity of Moos-Heizungen AG is the planning, installation, renovation and maintenance of heating systems, air conditioning and ventilation systems as well as solar systems for single-family, multi-family, commercial and school buildings.

Morges Énergies SA 

Morges · Since 2023

Morges Énergies SA provides information about the district heating (chauffage à distance) project, explains the underlying technology and supplies guidance and resources for connecting buildings to the heat network.

Morgeten Solar AG 

Oberwil Im Simmental · Since 2022

Moringa Vertrieb GmbH 

Unterägeri · Since 2018

The core activity of Moringa Vertrieb GmbH is the import and distribution of organic Moringa products from Ethiopia, particularly from 'Elim Farms plc.' in the Tigray region, with the aim of supporting the local population, especially women, and reinvesting the generated revenue into local projects.