“…In general, our analysis points to that the majority of shop stewards in Danish unions—merged or non‐merged—feel that their union represents their occupational group's interest; 10 per cent feel that this is not the case. However, in line with other research (Bednarek et al ., ; Behrens and Pekarek, ; Black et al ., ), size also appears to matter in the Danish case: the smaller the union, the larger share of shop stewards experience that their interests are well represented. The fact, that it is particularly large and medium‐sized Danish unions representing multiple interests, which have lost members in recent years (see appendix ), support the notion that unions with a heterogeneous membership base face greater difficulties in ensuring that their members and shop stewards feel well represented.…”