Energy consulting in the
Canton of Thurgau

Nova Energie Ostschweiz AG

Since 2018 · 11–20 empl.

Nova Energie Ostschweiz AG is a consultancy focused on energy and climate topics. It advises individuals, municipalities and businesses on energy efficiency, renewable energy and buildings, and supports them with energy and climate concepts, greenhouse gas assessments, and communication and education services.

Hybridbox AG

Since 2020 · 1–10 empl.

Hybridbox AG develops and implements integrated energy systems for buildings, sites and industry. Its services include energy studies, project development, the Hybridbox energy centre, storage solutions, system delivery and integration, as well as maintenance and support.

AWEP GmbH

Since 2017 · 1–10 empl.

AWEP GmbH is an independent energy consultancy. Its services include feasibility studies and project management for electric-vehicle charging infrastructure, integrated energy concepts, and advice on renewable energy and energy efficiency for individuals, businesses, municipalities and energy suppliers.

Nova Energie GmbH

Since 1996 · 1–10 empl.·5.0(1)

Nova Energie GmbH is an energy consultancy that handles individual client mandates and related services. Its activities include energy concepts and strategies, energy advice, consulting on renewable heating, and project advice for municipalities and energy utilities.

Verein Kompetenz-Zentrum Erneuerbare Energie-Systeme Thurgau (KEEST)

Since 2013 · 11–20 empl.·5.0(4)

Verein Kompetenz-Zentrum Erneuerbare Energie-Systeme Thurgau (KEEST) advises businesses on energy efficiency, renewable energy and net-zero planning. Its services include energy analyses, consultations and feasibility studies, as well as support with efficiency measures and energy supply concepts.

Honegger Architekt AG

Since 2010 · 1–10 empl.·5.0(2)

Honegger Architekt AG is an architecture practice and general contractor specializing in energy-efficient construction. It plans new buildings and renovations to Minergie-P and Minergie-P-Eco standards and provides energy concepts, calculations, certification applications and consulting.

isofutura gmbh

Since 2009 · 1–10 empl.·5.0(1)

isofutura gmbh develops comprehensive plans for energy-efficient renovations and supports conversions, extensions and new-build projects. Its planning considers a property’s condition and intended future use, along with potential energy and construction measures.

eBeratung Miljic

Since 2018 · 1–10 empl.

eBeratung Miljic provides electrical and energy consulting for private clients and construction projects. Its services include client representation and specialist construction management, electricity-use analysis and optimisation, electobiological measurements, and office and bookkeeping support.

novus engineering gmbh

Since 2011 · 11–20 empl.·4.8(4)

novus engineering gmbh is an engineering consultancy for energy, environmental and building services. It plans heating, ventilation, air conditioning, refrigeration and plumbing systems, and prepares energy certificates as well as GEAK and Minergie assessments. Its services also include energy advice and operational optimisation.

Büchel Neubig Partner GmbH

Since 2003 · 11–20 empl.·4.8(5)

Büchel Neubig Partner GmbH is an architecture and energy-planning practice. It designs and delivers building projects, works on renovations, conversions and new builds, and provides building energy assessments and energy concepts.

Camera Architektur Schätzung Energieberatung

Since 2020 · 1–10 empl.

Camera Architektur Schätzung Energieberatung provides architectural and construction services, property valuations, and energy consulting. Its services include project design and planning, new builds, conversions and renovations, construction management, valuations of different types of property, and energy certificates including GEAK documents.

Energy Engineering GmbH

Since 2022 · 1–10 empl.

Energy Engineering GmbH is an independent energy consultancy serving businesses and homeowners. It analyses energy use and costs and advises on building renovations, heating-system replacement, photovoltaics, battery storage and electric mobility, with support for implementation when requested.

Bayer Engineering

Since 2022 · 11–20 empl.

Bayer Engineering provides advice on renewable energy systems and plans photovoltaic installations. Its services also include project supervision, energy billing support, and assistance with funding applications and related administration.

Meier Architektur

Since 2011 · 1–10 empl.·5.0(3)

Meier Architektur is an architecture practice providing architectural planning and construction management. Its services include renovations, conversions, extensions and new builds, as well as energy advice and building energy certificates (GEAK).

COP2 AG

Since 2022 · 11–20 empl.·5.0(2)

COP2 AG is a building services engineering consultancy. It plans heating, cooling, ventilation, air-conditioning and plumbing systems, oversees construction and commissioning, and provides energy consulting and system analyses.

Enumplan Ingenieurbüro GmbH

Since 1999 · 1–10 empl.·3.7(3)

Enumplan Ingenieurbüro GmbH is a planning consultancy specialising in energy performance certificates, including certificates for Minergie standards. Its services also include GEAK building energy assessments, advice on the Buildings Programme, noise reports, building services planning and private energy inspections.

Elektra Horn AG

Since 2013 · 1–10 empl.·5.0(1)

Elektra Horn AG operates the electricity network and supplies the municipality of Horn with electricity. With its partners, the company also supports fibre-optic network infrastructure and provides energy advice on efficiency, renewable energy and building solutions.

Thurgie AG

Since 2000 · 1–10 empl.·2.0(1)

Thurgie AG brings together products and services from five electricity utilities and supplies customers with electricity. Its offerings include electricity products, energy advice, self-consumption solutions, renewable electricity and electric mobility.

Immo Werft GmbH

Since 2012 · 1–10 empl.·5.0(1)

Immo Werft GmbH manages rental properties and condominium properties, including their administrative and technical management. The company also acts as a general contractor for Minergie-P houses and provides energy and GEAK consultancy as well as client representation for new builds and renovations.

Energiefokus GmbH

Since 2024 · 1–10 empl.

Energiefokus GmbH plans and designs energy generation systems and e-mobility solutions for residential and commercial properties. Its services also include energy monitoring and control, and billing for energy, water and heat consumption as well as charging infrastructure.

Rickenbach Engineering AG

Since 2023 · 1–10 empl.·5.0(4)

Rickenbach Engineering AG prepares heating and ancillary-cost statements and provides energy consultancy, including GEAK assessments and advice on renewable heating. It also designs and installs metering systems and supplies heat and water meters and heat-cost allocators.

Pro-Energie Projekt- und Energiemanagement GmbH

Since 2010 · 1–10 empl.·1.0(1)

Pro-Energie Projekt- und Energiemanagement GmbH provides project and energy management services for plant construction and energy engineering. Its services include managing complete or partial projects, planning and design, and consulting and optimisation concepts for facilities that generate and distribute thermal energy. The company also provides training and technical tours and contributes to vocational education and training.

Müller Bauberatung GmbH

Since 2025 · 1–10 empl.

Müller Bauberatung GmbH provides construction management and client-side project advice, as well as services in fire protection, energy consulting, expert assessments and defect management. Its work also includes building energy analyses, energy certificates and the review of building applications for municipalities.

Kirchenklima GmbH

Since 2025 · 1–10 empl.

Kirchenklima GmbH develops heating and climate concepts for church buildings. It coordinates project teams in architecture, climate engineering and building automation, and supports projects from planning to handover with solutions that take energy efficiency and heritage requirements into account.

Tectom GmbH

Since 2025 · 1–10 empl.

Tectom GmbH provides energy consulting for buildings and supports energy-efficiency upgrades to residential and commercial properties. Its services include advice on building envelopes, heating and solar systems, building energy certificates and energy compliance documentation, as well as project planning and construction supervision.

Energiespeicherbüro Inh. Andrea Zulauf

Since 2025 · 1–10 empl.

Energiespeicherbüro Inh. Andrea Zulauf provides consulting and project support from initial concept through commissioning. Its work focuses on multi-energy systems, sector coupling, energy storage, and integrating electricity, heating and mobility infrastructure.

Noci Ingenieure AG

Since 2026 · 11–20 empl.

Noci Ingenieure AG is an engineering firm specialising in energy and building services. It provides consultancy, planning and specialist construction supervision for electrical, heating, ventilation, air-conditioning and plumbing systems.

Mazenauer CAB

Since 2026 · 1–10 empl.

Mazenauer CAB combines business consulting with time-limited, hands-on support for implementation. Its work covers energy and investment, leadership and execution, markets and sales, and the practical use of AI and IT; it also offers the Energiekompass, a tool for analysing photovoltaics, battery storage and grid systems.

Baut GmbH

Since 2011 · 1–10 empl.

Baut GmbH advises private customers, businesses and industry on energy management and supports energy and building technology projects from planning through implementation. Its services include battery storage, electric-vehicle charging infrastructure, building automation and project management.

PLANSTUDIO SCHWEIZ GmbH

Since 2017 · 1–10 empl.

PLANSTUDIO SCHWEIZ GmbH provides architectural services for new buildings, renovations and extensions. Its work includes design, project studies, energy consultancy, energy-efficient construction, detailed planning, construction management, client support, tendering and construction cost control.

Stüdli GmbH

Since 2018 · 1–10 empl.

Stüdli GmbH is a building engineering and general planning firm working in building services, fire protection and building physics. Its services include planning new buildings and renovations, preparing energy certificates, and advising on and managing projects from concept to implementation.

e-beta gmbh

Since 2020 · 1–10 empl.

e-beta gmbh advises on efficient energy use and the energy assessment and renovation of buildings. Its services include building energy certificates, energy documentation, renovation advice, energy-related construction support, advice on heating and photovoltaics, and assistance with subsidies and heating replacements.

Avalorion GmbH

Since 2024 · 1–10 empl.

Avalorion GmbH develops and carries out property conversions, new builds and major renovations. The company buys, rents out and sells properties, and provides U-value calculations and advice on insulation and moisture protection.

LINIJA Engineering GmbH

Since 2025 · 1–10 empl.

LINIJA Engineering GmbH is an engineering consultancy for building services, supporting construction projects from planning through implementation. Its services include technical planning and advice, energy performance documentation, energy assessments of existing buildings, and consultancy for new builds, conversions and renovations.

solanova gmbh

Since 2026 · 1–10 empl.

solanova gmbh plans and installs photovoltaic systems, battery storage systems and wallboxes for private customers and businesses. Its services also include advice, technical planning, grant applications, commissioning and maintenance.

Veer Energy Europe AG

Since 1979 · 1–10 empl.

L.Renda GmbH

Since 1999 · 1–10 empl.

Energieschub GmbH

Since 2001 · 1–10 empl.