“…First, it builds upon previous work stressing the relevance of how groups are internally organized and the significant variation in that regard (Minkoff et al, 2008;Baroni et al, 2014;Fraussen, 2014;Halpin et al, 2018) by highlighting two critical functions of groups: member involvement for representation and organizational capacity to efficiently provide policy input. Second, by examining the effects of having representative and efficient structures on the number of meetings with EU officials, the paper contributes to the literature centered on interest groups' level of access to public officials (Binderkrantz and Christiansen, 2015;Fraussen et al, 2015;Rasmussen and Gross, 2015;Grömping and Halpin, 2019;Weiler et al, 2019). Third, the paper provides an evaluation of the democratic potential of policy insider groups, which is crucial to assess how governance systems function.…”