Illinois National Bank Email Format

BankingIllinois, United States201-500 Employees

Illinois National Bank is a regional bank that provides personal and commercial banking services within Illinois. In addition to standard banking, the bank supports businesses with lockbox services that streamline the collection and processing of payments, freeing clients to focus on core operations. The organization handles substantial transaction volumes, processing more than six million lockbox transactions annually for government sectors and about two million for Central Illinois businesses. 

The bank is based in Springfield, Illinois, and employs several hundred professionals to serve its markets. It operates under FDIC insurance and Equal Housing Lender status, and it holds NMLS number 477621. In November 2025, INB added Sean Banigan as a mortgage lender in Bloomington.

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