The recognition that employers are legally and morally responsible for their worker's psychological health has produced legislation and litigation both within New Zealand and overseas. This paper empirically compares the experiences of organisational and operational work hassles, work-family conflict, neuroticism, job satisfaction, and work-related psychological well-being within three emergency services populations. A total of 723 respondents from the New Zealand Police, Fire and Ambulance Services returned completed self-report questionnaires. The police respondents reported more minor work stressors (hassles) and higher levels of work-family conflict and intrinsic job satisfaction. The ambulance service respondents reported significantly higher levels of work-related psychological well-being. Work-family conflict, neuroticism and job satisfaction all significantly predicted work well-being in the hypothesised directions and these associations were similar within all three Services. The implications for the treatment of occupational stress and the considerations for work-family conflict experienced by these emergency service workers are discussed.