ESAF Small Finance Bank is an Indian bank headquartered in Thrissur, Kerala. It provides banking services and small loans to the underbanked. ESAF started its journey as an NGO in 1992 with the vision of sustainable and holistic transformation of the poor and the marginalized.

In 2017, ESAF Microfinance, a non-banking finance company and microfinance institution, transformed into a small finance bank. It focuses on expanding the banking horizon to new unbanked/underbanked areas, yet it stands as a bank for all with a presence in urban, semi-urban, rural, and rural unbanked areas.

ESAF has adopted a unique social business strategy, with a triple bottom line approach, emphasizing People, Planet, and Prosperity. For every rupee invested in ESAF, studies by international agencies revealed that the Social Return on Investment stood at Rs. 3.19.

ESAF is committed to fostering a positive impact in society and the community. Its services are designed to effectively promote financial inclusion throughout the community