From research and development to legal and marketing services, a wide range of knowledge-intensive service activities (KISAs) enables firms and public sector organisations to better innovate. This publication examines the contribution of knowledge-intensive services to the acquisition and growth of innovation capabilities in firms and public sector organisations. It focuses on KISAs in four industy sectors: software, health care, tourism and leisure, and resource-based industries such as mining technology services, aquaculture and forestry. The analysis derives from a series of surveys and case studies undertaken in nine OECD countries: Australia, Denmark, Finland, Ireland, Japan, Korea, New Zealand, Norway and Spain.