In a literal translation, is to beautify something-means to make something beautiful (ωραίο -παράγωγο ο εξωραϊσμός).

Normally the word would be beautification or embellishing, but in such a case where it is mentioned in a sentence for a club from a companies list or group of companies it is more proper to say, Decorative club or Club for decorations which is a more general term fitting to the situation.