This document summarizes a case study on the impact of knowledge management practices on the financial performance of a large multinational law firm. The study found that implementing KM practices improved the firm's financial performance. Specifically, the study identified that the key drivers for increased fee income were the value perception of KM among lawyers and the ease of using knowledge systems. Additionally, providing personal services from the KM team was found to be the most important factor in improving lawyers' value perception of KM. The results supported the law firm's assumption that investing in KM can positively impact the income of professional service firms.