Building services engineer in
Aarau

7 companies in Building services engineer based in Aarau — name and year of registration from the commercial register. The list below shows them all.

Companies

All 7 companies in Aarau

HKG Engineering AG Logo

HKG Engineering AG

Since 1978 · 21–50 empl.

HKG Engineering AG is an engineering and consulting company specialising in electrical engineering and building technology. Its services include building automation and IT, security, energy, digitalisation and integrated planning of electrical systems.

Building services engineerOverall planningElectrical engineeringBuilding automation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #1
HEFTI. HESS. MARTIGNONI. Aarau AG Logo

HEFTI. HESS. MARTIGNONI. Aarau AG

Since 1999 · 101–500 empl.

HEFTI. HESS. MARTIGNONI. Aarau AG is an engineering company specialising in building services and electrical engineering for buildings and infrastructure. Its services include building services planning, building automation, energy supply, photovoltaics, lighting, security and fire protection.

Building services engineerOverall building services engineering (HLKSE+)HLKS engineeringElectrical engineering
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #2
EneriXpert AG Logo

EneriXpert AG

Since 2011 · 11–20 empl.

EneriXpert AG provides independent consultancy in energy, building services and building technology. Its services include energy assessments, energy concepts, project management and project coaching, as well as support for optimizing building systems and implementing complex projects.

Building services engineerEnergy auditEnergy conceptProject management
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #3
HEFTI. HESS. MARTIGNONI. 4U AG Logo

HEFTI. HESS. MARTIGNONI. 4U AG

Since 2017 · 11–20 empl.

HEFTI. HESS. MARTIGNONI. 4U AG is part of the HHM Group and provides services in overall building-technical planning (HLKSE+), HLKS and electrical engineering for building and infrastructure projects, including areas such as building automation, energy supply, photovoltaics, e-mobility, lighting, security/door engineering and fire protection.

Building services engineerHVACSE EngineeringElectrical EngineeringBuilding Automation
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #4
Planicore AG Logo

Planicore AG

Since 2026 · 1–10 empl.

Planicore AG is an engineering firm specialising in building and energy technology. It plans heating, cooling, ventilation, air-conditioning and plumbing systems, and provides technical analyses, feasibility studies and energy concepts.

Building services engineerHeating and Cooling PlanningVentilation and Air-Conditioning EngineeringSanitary Systems Planning
No score yet
EG

Energy Group AG Zweigniederlassung Aarau

Since 2017 · 1–10 empl.

Engineer
No score yet
SA

SELL ANLAGENBAU AG

Since 2017 · 1–10 empl.

Building services engineer
No score yet

Building services engineer in Aarau

7Building services engineerCommercial register (Zefix) · as of November 15, 2026
2017Median year of registrationCommercial register (Zefix) · as of November 15, 2026
161in the Canton of AargauCommercial register (Zefix) · as of November 15, 2026
2,231in SwitzerlandCommercial register (Zefix) · as of November 15, 2026
Locations

Building services engineer in the region

Point size by number of companies per place.

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