Air conditioning in
Grand-Lancy

12 companies in Air conditioning based in Grand-Lancy — name and year of registration from the commercial register. The list below shows them all.

Companies

All 12 companies in Grand-Lancy

Devinaz SA Logo

Devinaz SA

Since 1985 · 1–10 empl.5.0(26)

Devinaz SA is a heating and solar systems contractor. It designs, installs and maintains heating systems and photovoltaic installations, and provides services including repairs, maintenance contracts and work on heat pumps and water heaters.

Air conditioningHeating systemsPhotovoltaic systemsAir conditioning systems
ranQ Trust Score 4.5 out of 5.0, rated Excellent, Rank #1
Thermex SA, succursale de Lancy Logo

Thermex SA, succursale de Lancy

Since 2010 · 51–100 empl.4.5(11)

Thermex SA, succursale de Lancy operates in building services engineering, planning, installing and maintaining heating, ventilation and air-conditioning systems. Its services also include renewable energy systems, energy recovery, building automation and technical design.

Air conditioningHeating, Ventilation and Air ConditioningRenewable energy sourcesTechnical office
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #2
Tercier, Ventilation Logo

Tercier, Ventilation

Since 2015 · 1–10 empl.

The core activity of Tercier Ventilation includes the assembly, maintenance and cleaning of ventilation systems.

Air conditioningVentilation System InstallationVentilation System MaintenanceVentilation System Cleaning
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #3
Maffiolo SA Logo

Maffiolo SA

Since 1989 · 11–20 empl.5.0(3)

Maffiolo SA designs, installs and maintains thermal systems. Its services include planning, servicing and repairs for heating, air-conditioning and ventilation systems, heat pumps, heat and domestic hot-water production, and cooling distribution.

Air conditioningThermal installationsDesign officeMaintenance and troubleshooting
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #4
Thermoptimum SA Logo

Thermoptimum SA

Since 2009 · 1–10 empl.3.8(16)

Thermoptimum SA distributes, commissions, maintains and repairs climate-control and environmental technology systems. Its services cover heat pumps, solar collectors, boilers, burners, refrigeration equipment, control systems and building automation.

Air conditioningMaintenance and breakdown service for burners, boilers, heat pumps and solar installationsSupply and servicing of thermal equipmentImplementation of building automation
ranQ Trust Score 4.0 out of 5.0, rated High, Rank #5
JF

JJ Froid - Da Silva José

Since 2018 · 1–10 empl.

Air conditioning
No score yet
FS

FRIGOCLIM Sàrl

Since 2021 · 1–10 empl.

Air conditioning
No score yet
DJ

De Jesus Paulos Ventilation

Since 2024 · 1–10 empl.

Air conditioning
No score yet
PS

PRO-R Sàrl

Since 2024 · 1–10 empl.

Air conditioning
No score yet
AV

AB VENTILATION ENERGIE SA

Since 2024 · 1–10 empl.

Air conditioning
No score yet
JF

JJ FROID Sàrl

Since 2025 · 1–10 empl.

Air conditioning
No score yet
LA

Léman Air Tech SA

Since 2025 · 1–10 empl.

Air conditioning
No score yet

Air conditioning in Grand-Lancy

12Air conditioningCommercial register (Zefix) · as of November 15, 2026
2021Median year of registrationCommercial register (Zefix) · as of November 15, 2026
200in the Canton of GenevaCommercial register (Zefix) · as of November 15, 2026
2,538in SwitzerlandCommercial register (Zefix) · as of November 15, 2026
Locations

Air conditioning in the region

Point size by number of companies per place.

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