Reliant Bancorp, Inc, formerly Commerce Union Bancshares, is an American financial corporation based in Brentwood, Tennessee, USA.

[5] Its chairman was Charles T. Beasley and its chief executive officer and president was Ron DeBerry.

[8] Reliant Bancorp has been a public corporation listed on the NASDAQ on July 7, 2015.

[9] In January 2017, the corporation announced the retirement of Ron DeBerry as chairman and CEO and appointed DeVan D. Ard, Jr., president of Commerce Union Bancshares, Inc. and president and chief executive officer of Reliant Bank.

[13] At the time of its merger with United Community Bank in January 2022, Reliant Bancorp operated 24-branches, primarily in the Nashville area.