STEP 2 • Information technology (IT) auditing and consulting services,Leuven

NACE-BEL (BE 2008) : Construction of residential buildings (41201)

NACE Rev.2 (EU 2008) : Construction of residential and non-residential buildings (4120)

NACE-BEL (BE 2008) : Installation of electrical wiring and fittings in buildings (43211)

NACE Rev.2 (EU 2008) : Electrical installation (4321)

NACE-BEL (BE 2008) : Roofing activities (43910)

NACE Rev.2 (EU 2008) : Roofing activities (4391)

NACE-BEL (BE 2008) : Insulation work activities (43291)

NACE Rev.2 (EU 2008) : Other construction installation (4329)

NACE-BEL (BE 2025) : Roofing activities (43410)

NACE-BEL (BE 2025) : General work of electrical installation (43211)

NACE-BEL (BE 2025) : Installation of insulation (43230)

NACE-BEL (BE 2025) : General construction of residential buildings (41001)

ISIC 4 (WORLD) : Construction of buildings (4100)

ISIC 4 (WORLD) : Electrical installation (4321)

ISIC 4 (WORLD) : Other specialized construction activities (4390)

ISIC 4 (WORLD) : Other construction installation (4329)

NACE Rev.2.1 (EU 2025) : Roofing activities (4341)

NACE Rev.2.1 (EU 2025) : Construction of residential and non-residential buildings (4100)

NACE Rev.2.1 (EU 2025) : Electrical installation (4321)

NACE Rev.2.1 (EU 2025) : Other construction installation (4324)