Building services engineer in the
Canton of Solothurn
49 companies in Building services engineer based in the Canton of Solothurn — name and year of registration from the commercial register. The list below shows them all.
All 49 companies in the Canton of Solothurn
Kläy Haustechnik AG
Since 2003 · 101–500 empl.4.7(23)
Kläy Haustechnik AG plans and installs plumbing systems and heating systems for residential buildings, businesses, industry and public-sector facilities. Its services also include building-services engineering, maintenance and repairs.
Urs Kissling AG
Since 1988 · 11–20 empl.
Urs Kissling AG is an independent building-services planning office. It plans plumbing systems for residential and non-residential buildings, as well as heating, ventilation and cooling systems, and provides specialist coordination for construction projects.
NBG Ingenieure AG
Since 1995 · 1–10 empl.
NBG Ingenieure AG plans building services for new construction and renovation projects and advises on energy and sustainability matters. Its services include HVAC and plumbing engineering, building automation, fire protection, building assessments, renovation concepts, tendering and specialist construction management.
loonica gmbh
Since 2013 · 1–10 empl.
loonica gmbh plans and implements technical building infrastructure and supplies buildings with individual equipment and complex systems. Its services cover heating, ventilation, refrigeration, air conditioning, plumbing, solar and electrical systems, as well as technical support and servicing.
PlanFabrik GmbH
Since 2013 · 1–10 empl.
PlanFabrik GmbH provides technical planning services for building systems. Its services include heating and cooling load calculations and the design of radiant heating systems and thermally activated building systems (TABS).
LKK Planung GmbH
Since 2017 · 1–10 empl.
LKK Planung GmbH plans heating, ventilation and cooling systems, as well as building automation, for buildings with varied uses. Its services also include 3D/BIM coordination of building services, client representation, renovation concepts and operational optimisation.
anrocon GmbH
Since 2018 · 1–10 empl.
anrocon GmbH provides consulting, construction management and engineering for building projects. It also supervises and coordinates building services, including heating, ventilation, cooling, plumbing, electrical systems and sprinklers.
Studer Gebäudetechnik Holding AG
Since 2014 · 1–10 empl.5.0(5)
Studer Gebäudetechnik Holding AG is part of the SGT Gebäudetechnik group, whose planning offices design building services for new builds, renovations and conversions. The group covers heating, ventilation, cooling, plumbing and electrical systems, and also offers photovoltaics, energy consulting and project advisory services.
Enerhaus Engineering AG
Since 2011 · 11–20 empl.5.0(3)
Enerhaus Engineering AG is an engineering consultancy specialising in energy and building services, including HVAC and plumbing design and energy consulting. Its work includes planning building-services systems and energy solutions such as heat pumps and ventilation heat recovery.
eicher+pauli Olten AG
Since 2017 · 101–500 empl.5.0(2)
eicher+pauli Olten AG provides services in building, energy and environmental engineering. Its work includes developing energy strategies and planning energy supply systems and building technology for buildings, sites and districts, from initial concepts through to operation.
Jaeggi-Enertech GmbH
Since 2019 · 1–10 empl.
Jaeggi-Enertech GmbH provides independent consulting and planning services for heating technology and building energy. Its services include advice on heating replacements and heat pumps, energy assessments, project planning and construction supervision, as well as operational optimisation for residential, agricultural, commercial and industrial buildings.
Solothurn Gebäudetechnik AG
Since 2020 · 11–20 empl.5.0(5)
Solothurn Gebäudetechnik AG plans and coordinates building services for new builds, renovations and conversions. Its services cover heating, ventilation, cooling, plumbing and electrical systems, as well as photovoltaics, energy consulting and project consulting.
11i Gebäudetechnik GmbH
Since 2022 · 1–10 empl.5.0(9)
11i Gebäudetechnik GmbH specializes in building-services planning and project delivery. It plans and coordinates heating, ventilation, air-conditioning and plumbing systems, supporting projects from the initial concept through commissioning.
ennovatis Schweiz AG
Since 2010 · 11–20 empl.3.0(8)
ennovatis Schweiz AG provides services and products for energy management and the energy optimisation of buildings. Its activities include planning, installing and operating energy systems, as well as energy monitoring, metering and billing, building automation and energy systems engineering.
HLK Consulting GmbH Andreas Hauser
Since 2008 · 1–10 empl.5.0(2)
HLK Consulting GmbH Andreas Hauser provides consulting, planning and implementation for heating, ventilation, air conditioning and refrigeration systems. It also develops measurement, control and regulation solutions and builds custom refrigeration machines, heat pumps and integrated systems.
AESCHLIMANN ENGINEERING AG
Since 2012 · 11–20 empl.5.0(1)
AESCHLIMANN ENGINEERING AG is a building services engineering firm specialising in sanitary installations. Its services also include planning sprinkler and fire protection systems, as well as sewerage and utility networks.
Schmutz + Partner Energietechnik AG
Since 2024 · 1–10 empl.
Schmutz + Partner Energietechnik AG provides engineering and planning services in energy and building technology. Its services include heating, climate-control and cooling-system planning, energy consulting and assessments, as well as building automation planning and condition analyses.
Schmutz + Partner Gebäudetechnik AG
Since 2024 · 1–10 empl.
Schmutz + Partner Gebäudetechnik AG provides engineering and specialist planning services for building systems. Its work includes sanitary and drainage planning, technical coordination, condition assessments, water hygiene, and 3D and BIM planning.
Brunner Engineering AG
Since 2015 · 11–20 empl.5.0(1)
Brunner Engineering AG is a building-services engineering firm offering energy consulting, heating, ventilation and cooling services. Its work includes energy concepts, subsidy applications, heat pumps, district heating, and ventilation and cooling systems.
Allemann Energietechnik GmbH
Since 2016 · 1–10 empl.4.5(2)
Allemann Energietechnik GmbH provides consulting, planning and project support for heating, ventilation, air conditioning and refrigeration systems. Its services also include energy concepts, energy-efficiency advice and planning for building services in construction projects.
HKG Engineering AG Pratteln, Zweigniederlassung Olten
Since 2026 · 1–10 empl.
HKG Engineering AG Pratteln, Zweigniederlassung Olten is an engineering firm specialising in electrical engineering, building services and energy consulting. Its services include planning electrical systems, building automation and integrated project planning.

WENGET GmbH
Since 2026 · 1–10 empl.
WENGET GmbH plans, optimizes and rehabilitates building technology and building automation for properties in German-speaking Switzerland. The company offers, among other things, energy consulting, GA planning, operational optimization, as well as quality assurance and coordination of renovation projects.
SM Planung KlG
Since 2026 · 1–10 empl.
SM Planung KlG is a building-services engineering firm specialising in heating and plumbing systems. It plans and designs systems for new buildings and renovation projects, and provides technical consultancy, tendering and site supervision.
Air-Haustechnik AG
Since 2026 · 1–10 empl.
Air-Haustechnik AG specialises in ventilation and climate-control technology. The company plans, designs, installs and maintains ventilation and air-conditioning systems for industrial, commercial and public buildings, and also provides engineering and building-services personnel.
Trummer Technics
Since 2026 · 1–10 empl.
Trummer Technics plans plumbing and heating systems for new builds and renovations, and produces models and documentation for prefabrication and installation. Its services also include technical and business consulting, as well as support with AI development and use.
ecoMIB GmbH
Since 2015 · 1–10 empl.
ecoMIB GmbH plans and implements connected building automation solutions for energy-efficient building operation. Its services include planning heating, electrical and plumbing systems, as well as training on infrared heating systems.
FreiPlan GmbH
Since 2015 · 1–10 empl.
FreiPlan GmbH plans building services, with a focus on plumbing and sanitary systems. Its services cover strategic planning, condition assessments, project design and tendering, as well as implementation, commissioning and coordination of heating, ventilation, air conditioning, plumbing and electrical planning.
engineering 5D GmbH
Since 2019 · 1–10 empl.
engineering 5D GmbH provides engineering services for the planning and operation of building technology systems.
RUFER engineering GmbH
Since 2020 · 1–10 empl.
RUFER engineering GmbH provides services in building services engineering and building automation. Its work includes planning, consulting, project support and technical coordination, as well as hygiene inspections of ventilation and air-conditioning systems, private inspections, and the analysis and optimisation of existing systems.
Peter Bartlome
Since 1978 · 1–10 empl.
Ingenieurbüro Stefan Dietschi
Since 1989 · 1–10 empl.
Rombaldoni Haustechnik + Fitness
Since 2002 · 1–10 empl.
PAG Elektro Consulting GmbH
Since 2009 · 1–10 empl.
Re-Sol-Tech GmbH
Since 2011 · 1–10 empl.
Moto Invest GmbH
Since 2016 · 1–10 empl.
Opus Clima GmbH
Since 2016 · 1–10 empl.
Equans Switzerland AG
Since 2017 · 1–10 empl.
Enerplan AG, Zweigniederlassung Solothurn
Since 2018 · 1–10 empl.
nowoS GmbH
Since 2019 · 1–10 empl.
de Deugd GmbH
Since 2020 · 1–10 empl.
AC I SK Holding AG
Since 2021 · 1–10 empl.
Friedli Haustechnikplanung
Since 2023 · 1–10 empl.
Enerplan AG, Zweigniederlassung Olten
Since 2023 · 1–10 empl.
MC Gebäudetechnik GmbH
Since 2023 · 1–10 empl.
Vincent Steiner Gebäudetechnik
Since 2024 · 1–10 empl.
Hussain Consulting
Since 2025 · 1–10 empl.
WyssDome Tec GmbH
Since 2025 · 1–10 empl.
CADvolution Tran
Since 2026 · 1–10 empl.
ZERPLA GmbH
Since 2026 · 1–10 empl.
Building services engineer in the Canton of Solothurn
Building services engineer in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of November 15, 2026
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