Knauf is based in Germany and operates globally as a manufacturer and supplier of building materials. Its products include plasterboard, cement board, metal profiles, plasters and suspended ceilings. In New Zealand, Knauf is active in the importation and supply of products used for modular suspended ceilings and insulation.

USG is a global manufacturer and supplier of building materials headquartered in the USA. It manufactures a range of products including plasterboard, cement board, plasters and suspended ceilings. USG is active in New Zealand through its 50% interest in USG Boral Building Products, which supplies plasterboard, suspended ceiling components and other building materials.