This study in Spain explored three aspects of older adult volunteering (motivations, satisfaction, and perceptions of benefits and drawbacks) and examines to what extent these aspects are influenced by the type of organization and other factors (sociodemographic variables and level of volunteering). The sample consisted of 88 older adults volunteering in 3 different organizations: management, cultural actions, and social care. Participants completed a self-administered questionnaire. Results show that volunteering is a satisfying activity for older adults. Participants perceived more benefits than drawbacks and had diverse motivations for volunteering. Volunteering in a management organization predicted less satisfaction and perception of benefits, as well as greater drawbacks. (Contains 4 tables.)