The "BRW" magazine's list of the 100 fastest-growing companies in Australia contains eight based in Western Australia. Of this subset, six are active in business services, including real estate, or the construction industry. They are Geotech Soil & Aggregate Laboratory at number 30 overall, Credo Group at 55, Defiddesign at 69, Worldwide Salon Marketing at 74, Assetivity at 81 and Plexal Group at 85.