CIRFS membership consists of two categories: full and associate.
Full members are companies producing man-made fibres in Europe. Membership is open to producers in the European Union and any other European country, including Belarus, Russia, Turkey and Ukraine. CIRFS members currently represent over 85% of European production of man-made fibres within its scope.
Producers of polyolefin fibres (polypropylene and polyethylene) are associated with CIRFS through its affiliate organisation EATP (European Association for Textile Polyolefins).
Associate members are companies or organisations producing man-made fibres in other regions of the world, and companies supplying the man-made fibres industry with raw materials or services.