Due to technical issues, Online and Mobile Banking are currently unavailable. This issue is also impacting the Cash Management online portal. We are working diligently to restore services.

FDIC Digital Sign, using the official FDIC wordmark. This digital sign indicates the
deposit institution is backed by the full faith and credit of the US government.

Keith Portner

Senior Vice President / Business Development & Business Banking

300 Cherapa Pl
Suite 101
Sioux Falls, SD 57103

NMLS #464388

Hometown: New Ulm, MN
Education: Southwest State University
Experience: Banking industry for over 30 years
Community Involvement: Habitat for Humanity Sioux Empire Board of Directors and Habitat Restore Committee, YMCA Sioux Falls Board of Directors and Leif Ericson Camp Committee, Sioux Falls Chamber of Commerce Community Appeals Committee Member, United Way Corporate Campaigner, Feeding South Dakota Volunteer, youth boys and girls sports coach, and volunteer for a variety nonprofit organizations

With three decades of banking experience, Keith's mission is to guide individuals and business owners with experience and commitment at every step so they can achieve their goals. He prides himself on building trusting, mutually respectful relationships and delivering customer centric, professional, and quality service to his clients.

According to Keith, the best part about working for CorTrust is the dedication to the communities it serves. “CorTrust Bank is community banking. Local decision making, prioritizing community impact initiatives, supportive of volunteering, and giving back are all important to CorTrust,” said Keith.