Energy consulting in
Langenthal

Häusler Ingenieure AG

Since 1992 · 21–50 empl.·5.0(7)

Häusler Ingenieure AG is an engineering consultancy for building services, providing advice, concepts and planning. Its services cover heating, ventilation, air conditioning, cooling and plumbing, as well as energy concepts, energy consulting and optimisation, BIM planning and photovoltaics.

Kaminfegergeschäft Lanz AG

Since 2008 · 11–20 empl.·4.4(15)

Kaminfegergeschäft Lanz AG provides chimney sweeping, maintenance and official combustion-system inspections for wood, oil and gas heating systems. Its services also include energy advice and cantonal building energy certificates (GEAK).

planundwerk gmbh

Since 2006 · 1–10 empl.

planundwerk gmbh works in the fields of energy and building. Its activities include energy certificates, and it provides information on energy efficiency, funding programmes and building regulations.

Region Oberaargau

Since 1994 · 11–20 empl.·4.7(3)

Region Oberaargau is an association that promotes regional development across several policy areas. It supports municipalities with spatial and transport planning, provides energy advice, prepares comments on cantonal consultations and advises on funding through the New Regional Policy.

Walter Uebersax AG

Since 1997 · 11–20 empl.·4.8(4)

Walter Uebersax AG provides heating and energy technology services. Its work includes consulting and planning, installation of heat pumps, wood-fired heating systems, solar thermal systems and other heating systems, as well as maintenance and repairs.

PHAESON Energy Consulting GmbH

Since 2026 · 1–10 empl.

PHAESON Energy Consulting GmbH is an independent consultancy for photovoltaics and renewable energy. Its services include PV planning and owner’s representation, technical assessments and operational optimisation, as well as advice on repowering, self-consumption and energy marketing.

Arturo Egli Energieloft GmbH

Since 2017 · 1–10 empl.

Aydemir Energieberatung GmbH

Since 2025 · 1–10 empl.

Unternehmen für Energiefragen Grädel

Since 2026 · 1–10 empl.