Castelnau Group Limited is a Guernsey-domiciled closed-ended investment company that focuses on long-term capital appreciation through investments in businesses with competitive advantages. The company employs a high-conviction investment strategy, selecting opportunities across various asset classes and geographies, including both private and public markets. Castelnau Group generates revenue primarily through capital gains on its investments, with a concentrated portfolio approach that emphasizes quality over diversification. The company is managed by Phoenix Asset Management Partners Limited, which aligns its interests with shareholders through a performance-based fee structure.