Stillwater National Bank and Trust Company (SNB) is a subsidiary of Southwest Bancorp, Inc. Founded in 1894, SNB is headquartered in Stillwater, OK and currently has assets of over $2 billion with offices in Oklahoma, Texas and Kansas.

SNB offers commercial and consumer lending, deposit, investment services, specialized cash management, consulting and other financial services.

SNB also offers specialized consulting services that are delivered through affiliates which are subsidiaries of Southwest Bancorp, Inc.:

• Business Consulting Group - provides strategic planning, process analysis and assessment, as well as, ongoing implementation assistance to businesses in a number of industries.
  
• Healthcare Strategic Support, Inc. - a healthcare consulting company whose expertise helps healthcare organizations increase profitability, streamline complex business processes, improve patient satisfaction and exceed expectations for growth and performance.