With the medium-sized company based in Dresden, the Kunststoff-Institut Lüdenscheid has gained a heavyweight for the statistical analysis of scientific and technical data collection. QuoData GmbH has been dealing with the planning and evaluation of proficiency tests for about two decades, also developed methods used in the relevant standards, e. g. for carrying out homogeneity tests. QuoData is internationally known as a reliable and trustworthy provider of statistical services, consulting, software products and technical support for quality assurance and above all for qualification testing. The company now has three locations in Berlin, Freising and Dresden. We develop our statistical methods in consultation with Quo Data. Quo Data is operationally entrusted with data processing in accordance with ISO 17043 and ISO 13528.