Security Midwest Bancorp, Inc. engages in the provision of banking and financial services. The company is headquartered in Springfield, Illinois and currently employs 46 full-time employees. The company went IPO on 2025-07-31. The firm operates through its subsidiary Security Bank, s.b. (the Bank). The Bank is a state-chartered mutual savings bank engaged in the business of making residential mortgage loans and accepting deposits. Its operations are conducted through its three offices located in Springfield, Illinois. The Bank’s wholly owned subsidiaries include SB Financial Services, Inc. and 510 Monroe Holdings, LLC. Its SB Financial Services, Inc sells insurance, on an agency basis, and related products, and has a brokerage business. Its 510 Monroe Holdings, LLC was formed for the purpose of holding real estate acquired through foreclosure.