Knowledge Unlatched (KU) makes scholarly content freely available to everyone and contributes to the further development of the Open Access (OA) infrastructure. Our online marketplace provides libraries and institutions worldwide with a central place to support OA collections and models from leading publishing houses and new OA initiatives. With their support we transition monographs and journals in a wide variety of disciplines from paywalled to Open Access content. Additionally, KU offers various tools and services for stakeholders in the OA community. Our goal is simple: We want to make Open Access work!