Merchandising and playing apparel for more than 10 Australian professional sporting outfits could be thrown into chaos with sportswear company BLK being placed into receivership.

The Australian Securities and Investment Commission on Wednesday published that the Gold Coast-based organisation's parent company, World Rugby Specialists, had been placed under external administration.

BLK is the provider of gear for six AFL clubs, including Richmond, Adelaide, GWS, Brisbane and Gold Coast. Credit:Matt Roberts/AFL Media

BLK, which evolved out of apparel company KooGa in 2011, is the provider of gear for six AFL clubs, including Richmond, Adelaide, GWS, Brisbane and Gold Coast.

They had also recently signed a deal with St Kilda to be the club's apparel partner for 2017, while premiers the Western Bulldogs have just moved away from the organisation.