3Bank is a Serbian financial institution committed to supporting individuals and businesses that generate positive economic, social, and environmental impact. Originally founded in 2002 as Opportunity Savings Bank, it became a fully licensed bank in 2007 and rebranded as 3Bank in 2021 to reflect its triple focus on people, planet, and prosperity.

The bank offers accessible financial services to underserved communities, with a strong emphasis on micro and small businesses, rural entrepreneurs, and agricultural producers. Its loan portfolio includes tailored solutions for business growth, farming, and sustainable development, with a wide network of branches covering most of the country.

3Bank is backed by socially responsible shareholders such as Opportunity International, UmweltBank, GLS Bank, and Triodos Investment Management. As a member of the Global Alliance for Banking on Values, it promotes inclusive, transparent, and impact-driven finance.

With over 70,000 active clients, nearly half of them women, 3Bank plays a key role in expanding financial inclusion in Serbia, while maintaining a clear mission to create long-term value for both people and the environment.