The Companies Acts as defined by this Act (see section 2) extend to Northern Ireland.

The Companies (Northern Ireland) Order 1986 (S.I. 1986/1032 (N.I. 6)), the Companies Consolidation (Consequential Provisions) (Northern Ireland) Order 1986 (S.I. 1986/1035 (N.I. 9)) and Part 3 of the Companies (Audit, Investigations and Community Enterprise) Order 2005 (S.I. 2005/1967 (N.I. 17)) shall cease to have effect accordingly.