This paper reports on a service evaluation of PeerTalk, a nationwide charity that organises and facilitates peer support groups for individuals with depression. Therefore, the aim was to gather and synthesise benefits perceived by support group attendees. Thematic analysis was undertaken following the collection of data from two group interviews comprising PeerTalk support group attendees. Once those data were analysed, five key themes emerged: (1) talking/listening, (2) socialising, (3) contrast with other services, (4) personal benefits, and (5) structure and accessibility. Two further minor themes were also identified: (6) wider benefits and (7) areas for development that could lead to overall improvements to the service. PeerTalk’s support groups provide multiple opportunities for attendees to meet others who have similar experiences within an environment that does not require formal engagement or commitment. Those that attend find benefit from supporting others and socialising within the group. These benefits are complementary to mainstream services that they may concurrently be involved with, rather than replacing or hindering them. Peer support groups can therefore provide a resource for healthcare professionals to which they can direct individuals who may feel benefit from engaging with other individuals with similar experiences. Sheffield Hallam University granted ethics approval for the study (ER:59716880) prior to its commencement (16 February 2024).