The phrase "list members" refers to the people or things that are a part of a specific list. It means the individuals or objects that have been included in a particular list. Full definition
The following chart lists the members of the Republican conference and the most recent statements they have made about their house's leadership. (politico.com)
The best way to do this is to invite you email list members to join your group. (artfulpublications.com)
It's always a good thing to inform new list members of the frequency with which you'll publish. (fausga.com)