This review highlights the Circulate Capital Ocean Fund's ability to achieve positive financial, environmental, and social impact by catalyzing capital. Their efforts focus on reducing plastic leakage in the environment and ocean, promoting circular business models, improving livelihoods through local job creation, and building climate resilience while managing natural resources sustainably. Recognizing the need for impact measurement, Circulate Capital acknowledges being at the forefront of trialing such ideas and aims to share their approach widely to foster learning, collaboration, and continuous improvement in this space.