O.N. CONSTRUCT • Installation and maintenance services for handling machinery and equipment,Brussel

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) : General construction of other non residential buildings (41203)

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

NACE-BEL (BE 2008) : Plumbing (43221)

NACE Rev.2 (EU 2008) : Plumbing, heat and air-conditioning installation (4322)

NACE-BEL (BE 2008) : Demolition (43110)

NACE Rev.2 (EU 2008) : Demolition (4311)

NACE-BEL (BE 2008) : Air conditioning and ventilation heating installation (43222)

NACE-BEL (BE 2025) : Sanitary work (43221)

NACE-BEL (BE 2025) : General construction of other non-residential buildings (41003)

NACE-BEL (BE 2025) : Demolition (43110)

NACE-BEL (BE 2025) : Installation of heating, ventilating, air conditioning, refrigeration installations powered by electricity (43222)

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

ISIC 4 (WORLD) : Electrical installation (4321)

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

ISIC 4 (WORLD) : Plumbing, heat and air-conditioning installation (4322)

ISIC 4 (WORLD) : Demolition (4311)

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) : Plumbing, heat and air-conditioning installation (4322)

NACE Rev.2.1 (EU 2025) : Demolition (4311)