The pace of biodiversity loss reached skyrocketing numbers, threatening global economies and overall human welfare. Given the current speed of biodiversity decline, public entities and conservation agencies alone are not capable of bending the curve. Fundamental change is imperative, often referred to as transformative change. Joint actions are needed to abolish business-as-usual, which calls for restructuring the finance sector. However, this topic is emerging, leaving available literature scarce and scattered. Additionally, the currently available scientific discourse is also not unanimous about the status of biodiversity in finance. Therefore, this paper aims to synthesise existing publications to gain transparency about the topic, conducting a systematic review. Three main concepts emerge about how the private finance sector can aid in halting biodiversity loss, namely: (1) by increasing awareness of biodiversity, (2) by seizing biodiversity-related business opportunities, and (3) by enlarging biodiversity visibility through reporting. Overall, we assume that the private finance sector upholds a great leverage power in becoming a co-agent of positive biodiversity change. Finally, we argue that it is of utmost importance to investigate how financial institutions practically deal with the topic of biodiversity. Therefore, follow-up research is needed to explore implementing the detected theoretical concepts.