Nolan Clarke & Conor Krommenhoek

Security National Bank Welcomes Two New Personal Bankers

November 16, 2018

SIOUX CITY, Iowa — Security National Bank is pleased to announce the following new employees:

Nolan Clarke is a personal banker at the Dakota Dunes branch, where he assists new and existing customers with their financial needs. A native of Estelline, S.D., Clarke holds a bachelor’s degree in business economics, along with a minor in accounting, from South Dakota State University.

He and his wife, Miranda, look forward to getting involved with the Dakota Dunes community after arriving from Fargo, N.D., where Nolan served as a property manager with Goldmark.

Conor Krommenhoek is a personal banker at the downtown Security National Bank, located at 601 Pierce St. Prior to joining SNB, he served as the development director for Siouxland Habitat for Humanity, and as a marketing/sales support representative with L&L Distributing in Sioux City.

Krommenhoek holds a bachelor’s degree in finance from the University of Northern Iowa. Also active in the community, he is involved with the Sioux City Growth Organization and plans to continue volunteering with Habitat for Humanity in the area. 


Security National Bank is a local, full-service financial institution with branch offices serving customers in Sioux City, Akron, Mapleton, Moville, Lawton and Climbing Hill. Since its founding in 1884, Security National Bank has set the standard for integrity, reliability, innovation and continued commitment to providing customers with superior service. Today, SNB is the largest locally owned bank in Sioux City. Visit the employment opportunities webpage to learn more about ways to advance your career with Security National Bank.