Energy consulting in
St. Gallen

30 companies in Energy consulting based in St. Gallen — name and year of registration from the commercial register. The list below shows them all.

Companies

All 30 companies in St. Gallen

Abonax AG Logo

Abonax AG

Since 2006 · 21–50 empl.5.0(4)

Abonax AG advises and provides operational support to energy utilities, and develops products and services for the energy sector. Its activities include energy procurement, grid management, customer service, legal and regulatory matters, marketing, and digital solutions.

Management consultantEnergy solutionsElectricity communities (LEG, vZEV, vEVG)Solar community
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #1
Kempter + Partner AG, Heizungs-, Klima-, Sanitär- und Energietechnik Logo

Kempter + Partner AG, Heizungs-, Klima-, Sanitär- und Energietechnik

Since 1991 · 21–50 empl.5.0(3)

Kempter + Partner AG, Heizungs-, Klima-, Sanitär- und Energietechnik is an engineering consultancy for building services planning and coordination. Its work covers heating, ventilation, air conditioning, cooling, plumbing, measurement and control systems, and energy and feasibility studies.

Building services engineerBuilding services planningConsultingServices
ranQ Trust Score 4.2 out of 5.0, rated Very high, Rank #2
Gebäudeanalyse Martin Felder SIA, Ingenieurbüro für Bauphysik, Akustik und Messtechnik Logo

Gebäudeanalyse Martin Felder SIA, Ingenieurbüro für Bauphysik, Akustik und Messtechnik

Since 2008 · 1–10 empl.

Gebäudeanalyse Martin Felder SIA, Ingenieurbüro für Bauphysik, Akustik und Messtechnik is an engineering consultancy for building physics, energy planning, building damage analysis and measurement services. Its work includes energy advice and building energy reports, airtightness testing, and acoustic and noise-protection assessments using measurements or calculations.

EngineerEnergy planningSound insulation and noise protectionMeasurements
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #3
HKG Engineering AG Schlieren Logo

HKG Engineering AG Schlieren

Since 2010 · 21–50 empl.

HKG Engineering AG Schlieren is an engineering firm specialising in building technology and energy consulting. Its areas of expertise include electrical engineering, building automation and IT, security, energy, digitalisation and overall engineering.

Building services engineerElectrical engineeringBuilding automationBuilding IT
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #4
Konkret Strategie und Beratung GmbH Logo

Konkret Strategie und Beratung GmbH

Since 2014 · 1–10 empl.

Konkret Strategie und Beratung GmbH supports complex projects, develops and helps implement measures, and presents topics visually and through communications. Its advisory work covers energy and buildings, public transport and telecommunications, including renewable heating, building efficiency, photovoltaics and electric mobility.

Management consultantStrategy and consulting servicesProject support and implementation of measuresVisual representation and communication
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #5
ibee swiss renewable energy investments GmbH Logo

ibee swiss renewable energy investments GmbH

Since 2014 · 11–20 empl.

ibee swiss renewable energy investments GmbH advises businesses in the casino and hospitality sectors on energy efficiency and sustainable operations. Its services include analysing energy use, planning efficiency measures and supporting the implementation of renewable energy solutions.

Energy consultingSustainability consulting for Swiss casinosPhotovoltaic consulting for casino resortsConsulting on green hospitality
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #6
Lubina Engineering GmbH Logo

Lubina Engineering GmbH

Since 2019 · 11–20 empl.

Lubina Engineering GmbH is a general planning and engineering firm for building services. It plans heating, ventilation, air-conditioning, refrigeration, plumbing and electrical systems, and provides specialist coordination, fire protection consulting, building physics services, energy performance certificates and energy advice.

Building services engineerOverall planning of HLKKSE systemsFire protection consulting and designBuilding physics and energy performance documentation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #7
Züst Ingenieurbüro Haustechnik AG Zweigniederlassung St. Gallen Logo

Züst Ingenieurbüro Haustechnik AG Zweigniederlassung St. Gallen

Since 2020 · 1–10 empl.

Züst Ingenieurbüro Haustechnik AG Zweigniederlassung St. Gallen is an engineering consultancy for building services. It plans heating, ventilation, plumbing and cooling systems, as well as energy solutions, and prepares energy certificates and GEAK reports for new buildings and renovations.

Building services engineerHeatingVentilationSanitary
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #8
originate GmbH Logo

originate GmbH

Since 2020 · 1–10 empl.

originate GmbH measures heat and cooling in buildings, providing data to support the planning and sizing of heating and cooling systems. It also analyses and optimises existing heating, cooling and ventilation systems, and offers measurement and engineering services.

EngineerHeat measurement and heating capacity sizingThermal power measurementEnergetic operational optimization
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #9
Elektro-Control Schmid GmbH Logo

Elektro-Control Schmid GmbH

Since 2002 · 1–10 empl.5.0(1)

Elektro-Control Schmid GmbH provides inspection and consulting services for electrical installations and equipment. Its services include periodic, acceptance and final inspections, issuing safety certificates, power network analyses and energy optimisation.

Testing and inspection bodyElectrical installation inspectionsEnergy optimisationGrid analyses
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #10
Energieagentur St.Gallen GmbH Logo

Energieagentur St.Gallen GmbH

Since 2012 · 21–50 empl.3.3(6)

The company is primarily active in the energy sector and focuses on sustainable energy solutions. The core activities include: Consulting and promoting energy efficiency and renewable energies; Developing and implementing projects in the areas of heat supply, solar energy, and mobility; Informing and educating private individuals, municipalities, and professionals on energy issues; Promoting sustainable energy solutions and supporting companies and organizations in the implementation of energy projects. The company also offers various services, such as energy audits, consulting on the planning and implementation of energy projects, as well as organizing events and workshops.

Energy consultingEnergy ConsultingEnergy Incentives for Building ModernisationEnergy Incentives for Operating Optimisation
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #11
fla Florian Ludewig Architekt GmbH Logo

fla Florian Ludewig Architekt GmbH

Since 2020 · 1–10 empl.5.0(3)

fla Florian Ludewig Architekt GmbH is an architecture practice specialising in new buildings, conversions and renovations. Its services include feasibility studies, project planning, building-permit and construction planning, site supervision, and GEAK and energy consultancy.

ArchitectArchitectural planningConstruction site supervision and project managementRenovation planning
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #12
rofflerenergie gmbh Logo

rofflerenergie gmbh

Since 2022 · 1–10 empl.5.0(4)

rofflerenergie gmbh advises on energy-efficient building renovations, building-envelope insulation, heating systems, solar energy and energy storage. Its services include preparing energy concepts, comparing contractors’ quotations, conducting measurements and analyses, and supporting renovation projects through implementation.

Energy consultingPersonal adviceEnergy concept (GEAK plus)Offer comparison
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #13
energenta GmbH Logo

energenta GmbH

Since 2011 · 1–10 empl.5.0(2)

energenta GmbH provides energy consultancy and services in construction, energy and the environment. Its work includes energy-efficient building planning and renovation, preparing energy certificates and GEAK reports, checking subsidy options, and advising on and accompanying construction and window-renewal projects.

Owner's representationEnergy consultingConstruction consulting and site supervisionEnergy attestations
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #14
Exacon AG Logo

Exacon AG

Since 2023 · 1–10 empl.

Energy consultingEnergy recovery systemsSystem components for ERG systemsDesign and optimisation software
ranQ Trust Score 3.9 out of 5.0, rated High, Rank #15
IG Energietechnik AG Logo

IG Energietechnik AG

Since 2000 · 1–10 empl.5.0(1)

IG Energietechnik AG provides services in building technology and energy. Its activities include heating, ventilation and climate solutions, as well as implementing heating systems tailored to customer requirements.

Building services engineerHeating PlanningVentilation and Air Conditioning PlanningEnergy Consulting
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #16
einsplus baubegleitung GmbH Logo

einsplus baubegleitung GmbH

Since 2014 · 11–20 empl.5.0(1)

einsplus baubegleitung GmbH provides support for new construction, renovation and complete refurbishment projects. Its services include construction and project management, tendering, energy consulting, GEAK building energy certificates, and cost, schedule and property valuation services.

Construction managerConstruction managementProject managementCost planning
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #17
Wirkungsgrad Ingenieure AG, Zweigniederlassung St. Gallen Logo

Wirkungsgrad Ingenieure AG, Zweigniederlassung St. Gallen

Since 2018 · 1–10 empl.5.0(1)

Wirkungsgrad Ingenieure AG, Zweigniederlassung St. Gallen is an engineering firm specialising in energy and building services. It plans heating, ventilation, air conditioning, cooling, plumbing, sprinkler and building automation systems, and supports their implementation.

Building services engineerPlanning of heating, ventilation, air-conditioning, refrigeration, sanitary, sprinkler and building automation systemsOverall planning across all tradesEnergy consulting and certification
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #18
PV-Tec GmbH Logo

PV-Tec GmbH

Since 2022 · 11–20 empl.5.0(3)

PV-Tec GmbH installs solar and e-mobility systems throughout Switzerland. Its services include energy-efficiency consulting and project planning, permits, coordination and installation.

Energy consultingEnergy efficiency consultingPhotovoltaic systemsE-mobility
ranQ Trust Score 3.8 out of 5.0, rated High, Rank #19
diemenergie gmbh Logo

diemenergie gmbh

Since 2019 · 1–10 empl.5.0(1)

diemenergie gmbh provides independent advice on heating systems, renewable energy, and related storage and management. Its services include developing energy concepts, comparing quotes, measuring and analysing heating systems, and accompanying projects from planning through handover.

Energy consultingOn-site consultingConceptQuotation comparison
ranQ Trust Score 3.7 out of 5.0, rated Solid, Rank #20
Wektor AG Logo

Wektor AG

Since 2026 · 1–10 empl.

Wektor AG provides data-driven analysis for photovoltaic and energy storage projects under the WEKTOR brand. Its services include simulating and optimising system operations, portfolio analysis, and investment and feasibility studies.

Energy consultingEnergy analysis for PV and storage projectsEnergy system optimisation and technical modellingDistrict network and self-consumption community consulting
ranQ Trust Score 3.5 out of 5.0, rated Solid, Rank #21
COBRI AG Logo

COBRI AG

Since 2009 · 1–10 empl.

COBRI AG provides energy consulting on renewable energy for properties and infrastructure, including heating advice, building modernisation concepts, on-site consultations and quote comparisons. It also advises technically oriented businesses on business development, strategic realignment, succession planning and general assignments under mandate.

Management consultantEnergy consultingBusiness consulting
No score yet
AT-Baumanagement GmbH Logo

AT-Baumanagement GmbH

Since 2020 · 1–10 empl.

AT-Baumanagement GmbH operates in building and energy technology. It advises on heat pumps and solar and photovoltaic systems, and offers energy-efficient windows as well as support with planning, installation and service.

Heating installerHeat pumpsPhotovoltaic and solar systemsEnergy-efficient windows
No score yet
Steiner Consulting Logo

Steiner Consulting

Since 2025 · 1–10 empl.

Steiner Consulting provides real estate consultancy services. It assesses individual properties and portfolios, evaluates building conditions and prepares decision-making information for investments, renovations and long-term measures; it also coordinates subsidy applications and supports implementation.

Energy consultingProperty AnalysisPortfolio Analysis
No score yet
RM

Ruedi Moser

Since 1993 · 1–10 empl.

Energy consulting
No score yet
NI

NBG Ingenieure St. Gallen AG

Since 2012 · 1–10 empl.

Energy consulting
No score yet
NE

New Energy Trading AG

Since 2013 · 1–10 empl.

Energy consulting
No score yet
GE

GFA Entec AG

Since 2014 · 1–10 empl.

Energy consulting
No score yet
AF

AG für erneuerbare Energien

Since 2022 · 1–10 empl.

Energy consulting
No score yet
GE

GHT Engineering AG

Since 2023 · 1–10 empl.

Building services engineer
No score yet

Energy consulting in St. Gallen

30Energy consultingCommercial register (Zefix) · as of November 15, 2026
2014Median year of registrationCommercial register (Zefix) · as of November 15, 2026
158in the Canton of St. GallenCommercial register (Zefix) · as of November 15, 2026
2,206in SwitzerlandCommercial register (Zefix) · as of November 15, 2026
Locations

Energy consulting in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of November 15, 2026