This research paper explores the role of on-orbit satellite servicing (OOS) technologies for the acceleration of European space autonomy. By assessing the global historical evolution of OOS, with a particular focus on the United States, China, and Russia, the paper establishes an overview of current OOS technologies and their growing strategic relevance. It finds that while in comparison to other global space actors, European OOS capacities have historically been underdeveloped, investments in OOS offer a cost-efficient opportunity to significantly bolster European autonomy. With recent changes in European defence policy and an increased focus on space as a strategic domain, new opportunities have emerged to close the resulting capability gap. Examining European projects such as ClearSpace-1, RISE, and EROSS+, the analysis concludes that expanding investments in private-public partnerships between governments and commercial providers are the most efficient path towards expanding European OOS capabilities.