Stillwater National Bank & Trust Company (“Stillwater National,” “SNB”), chartered in 1894, offers commercial and deposit services from offices in Stillwater, Tulsa, Oklahoma City, Edmond, and Chickasha, Oklahoma. In 2002, branching outside of Oklahoma began. In Texas, SNB is branded as SNB Bank of Austin, SNB Bank of Dallas, SNB Bank of San Antonio and SNB Bank of Houston.

Bank of Kansas opened its doors for financial services in 1907. In late July, 2007 Southwest Bancorp, Inc. purchased and was approved for the state bank charter for Bank of Kansas and now currently operates under the marketing name, Bank of Kansas. On June 19, 2009, the bank acquired the First National Bank of Anthony, Kansas in an FDIC-assisted transaction. The bank now boasts full service branches in: Hutchinson, South Hutchinson, Anthony, Harper, Mayfield, West Wichita, East Wichita and Overland Park, Kansas. It provides solutions for commercial and personal deposits as well as lending needs.

Business Consulting Group (BCG) specializes in offering solutions for each client to enhance the performance of his or her own company. Consulting is offered for both the private and public sectors.

Healthcare Strategic Support, Inc. (HSSI) is a healthcare consulting group that services individuals, small businesses or multi-million dollar organizations with their healthcare needs such as revenue enhancement, financial management support, hospital & clinic development project management and managed care strategic planning.