Abstract
Although there is agreement on the role of the client in the innovation process inprofessional service firms (PSF), other actors have not been systematically integrated into theorybuilding on the professional service innovation. Drawing on the entrepreneurial ecosystemliterature, we develop an entrepreneurial ecosystem framework for the PSF field. The conceptualframework describes and explains the key aspects of the PSF entrepreneurial ecosystem, as wellas its dynamics. This article contributes by shifting the debate about professional serviceinnovation with a focus on the professional service firm and its clients to consider the broaderentrepreneurial ecosystem of PSFs. We conclude by discussing future research opportunities onentrepreneurial ecosystems in the PSF field.