About BOS

With a focus on community, Jack A. Marantz founded BOS in Springfield, Illinois in 1965. Today, the tradition continues under the leadership of Chairman of the Board and Chief Executive Officer, Tom Marantz.

From our roots as a neighborhood bank on Springfield’s southeast side, BOS has grown to a community bank with over $850 million in assets. Our first expansion outside Springfield was to Jacksonville, Illinois in 2000. We now have 12 locations throughout Illinois. You can find us in Springfield, Jacksonville, Chatham, Quincy, Swansea, Shiloh, Glen Carbon and Staunton. As we continue to expand operations, you have our promise to remain privately held and responsive to your needs.

Get more BANK for your buck.

Whether you open a personal checking account or set up remote deposit for your business, you can expect world-class service from our professional and personable staff. As a BOS customer, you will find the tools you need for ultimate banking convenience. Online and mobile banking allow for account access 24/7. Our innovative products and services are sure to meet your needs at each stage of your life.

Business customers will discover a responsive team of professionals ready to help your organization grow using the best banking products available, such as Lock Box Service, Positive Pay Service, Remote Deposit and more.

We also provide customers with experts in the areas of private banking, wealth management, trust and insurance. BOS Financial Services goes beyond traditional banking products to make managing your portfolio simple and convenient.


Community Commitment

BOS is committed to utilizing its resources to make a positive impact on the communities we serve. Major sponsorships have included support of the Illinois State Museum, University of Illinois at Springfield, and the Caddyshack Open Golf Tournament. In 2004, the Jack A. Marantz Memorial Scholarship Fund was established at the University of Illinois at Springfield to help underwrite scholarships for student athletes who are members of the Prairie Stars men’s varsity basketball team. Our employees continually dedicate their time volunteering for local organizations including food, clothing and toy drives; blood drives; and numerous charity events.

BOS also has a brightly colored, child-friendly mascot, “BOS Dog” (pronounced Boss Dog) who attends many fundraisers and family events throughout central Illinois.