This study examines the association between nursing assistants' perceptions of their psychosocial work environment and satisfaction among older people receiving care in nursing homes and home care. Cross-sectional surveys were conducted among people receiving care (N= 1,535) and nursing assistants (N= 1,132) in 45 nursing homes and 21 home care units within municipal old-age care. Better psychosocial work environment was related to higher satisfaction in old-age care among the recipients. Significant and stronger associations were more common in nursing homes than in home care. Perception of mastery and positive challenges at work were associated with higher recipient satisfaction both in home care and in nursing homes: social climate, perception of group work, perception of mastery, and positive challenges at work only in nursing homes. Findings suggest that recipient satisfaction may be increased by improving the psychosocial work environment for nursing assistants, both in nursing homes and in home care.