Before 1995, membership of the Group consisted of a number of research teams based in several different European countries. As the composition of these teams changed, so did the membership of the Group. After 1995, it was agreed that membership would be determined on an individual basis.

Members are expected to be active participants by contributing to the Group's research agenda and by regularly attending the annual EuroQol Group plenary meetings. Membership is reviewed yearly.

EuroQol Group members are free to act as consultants in advising on the use of EQ-5D but may charge accordingly for their services.