Energy consulting in
Thun

Caloraqua AG

Since 1979 · 11–20 empl.

Caloraqua AG is a planning and engineering firm specialising in building services, including heating, ventilation, air conditioning and plumbing. Its services include building-services planning and coordination, energy concepts and advice, operational optimisation and project management.

IEM Ingenieurbüro für Energie- und Messtechnik AG

Since 1994 · 11–20 empl.

IEM Ingenieurbüro für Energie- und Messtechnik AG plans heating, ventilation, air conditioning and plumbing systems, as well as energy and renovation concepts. Its services also include building operation optimisation, dynamic building simulations and measurement services.

Degen Transform Plan GmbH

Since 2014 · 1–10 empl.

Degen Transform Plan GmbH plans energy-related building renovations and provides independent GEAK Plus advice. Its reports assess a building’s energy efficiency and compare renovation options, including estimated costs, subsidies and potential savings.

Wing Consulting AG

Since 2019 · 1–10 empl.·5.0(3)

Wing Consulting AG is a consultancy for energy systems and energy optimisation in buildings and energy supply. Its services include energy concepts, feasibility studies for thermal networks, building energy certificates, operational optimisation advice and assessments of photovoltaic systems.

Helmle Archidea AG

Since 2004 · 1–10 empl.·4.5(4)

Helmle Archidea AG is an architecture and planning firm working on residential building projects. Its services include new construction, renovations and conversions, client-side construction advice, purchase and sales advice, property valuations, building-land analyses and GEAK energy consultations.

architekturimhof.ch GmbH

Since 2012 · 1–10 empl.

architekturimhof.ch GmbH is an architecture practice working on new buildings, conversions and renovations. It also provides GEAK energy consultancy and supports energy-efficiency renovations from assessment through implementation.

Fankhauser Dienstleistungen GmbH

Since 2026 · 1–10 empl.