This article provides an overview of the literature on demonstration projects and trials, and accounts for how insights drawn from this literature can contribute to the development of a sustainable bioeconomy. The article reviews the literature on demonstration projects and trials, covering both more broad-based studies on demonstration projects mainly carried out in the US and more specific studies on demonstration projects for energy technologies carried out in Europe, the US, and Japan. The aim of the article is to account for how demonstration projects and trials can contribute to the development of a sustainable bioeconomy