Walden Mutual Bank focuses on sustainable finance, providing online savings accounts and lending to local food and farm businesses in New England and New York. The bank's investment strategy centers on supporting the local food economy and driving positive environmental impact through its financial products.

The bank offers FDIC-insured "Grow Local" accounts for individuals, allowing depositors to earn interest while supporting sustainable initiatives. Walden Mutual Bank emphasizes its commitment to food systems change and provides additional benefits through its Partner Perks program, aiming to enhance the positive impact of its banking services.