Exhibit 99.1

News Release

NATIONAL COMMERCE CORPORATION ANNOUNCES COMMENCEMENT

OF COMMON STOCK OFFERING

BIRMINGHAM, AL, June 6, 2017 (GLOBE NEWSWIRE) -- National Commerce Corporation (Nasdaq: NCOM) (the “Company”), the parent holding company of National Bank of Commerce (the “Bank”), announced today that it has commenced an underwritten public offering of approximately $35 million of the Company’s common stock. The Company has granted the underwriters a 30-day option to purchase up to an additional 15% of the shares of common stock offered by the Company.

Keefe, Bruyette & Woods, A Stifel Company, will serve as the sole book-running manager, with Raymond James & Associates, Inc. and Stephens Inc. serving as co-managers for the offering. The shares will be issued pursuant to a prospectus supplement and prospectus filed as part of an effective shelf registration statement filed with the U.S. Securities and Exchange Commission (“SEC”) on Form S-3 (File No. 333-210687). The Company expects to use the net proceeds of this offering for general corporate purposes, including providing capital to support the Company’s growth organically or through strategic acquisitions, financing investments, repaying existing indebtedness and for investments in the Bank as regulatory capital.

Additional Information Regarding the Offering

This press release is for informational purposes only and is not an offer to sell or the solicitation of an offer to buy any securities of the Company, which is made only by means of a prospectus supplement and related base prospectus, nor will there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction. The Company has filed a registration statement (including a prospectus supplement) with the SEC for the offering to which this communication relates. Prospective investors, including current shareholders interested in participating in the offering, should read the prospectus in that registration statement, the preliminary prospectus supplement and other documents that the Company has filed with the SEC for more complete information about the Company and the offering. These documents are available at no charge by visiting the SEC’s website at http://www.sec.gov. The offering will be made only by means of a prospectus, copies of which may be obtained from Keefe, Bruyette & Woods, Inc., Equity Capital Markets, 787 Seventh Avenue, 4th Floor, New York, NY 10019 by calling toll-free (800) 966-1559.

About National Commerce Corporation

National Commerce Corporation (Nasdaq: NCOM), a Delaware corporation, is a financial holding company headquartered in Birmingham, Alabama. Substantially all of the operations of National Commerce Corporation are conducted through the company’s wholly owned subsidiary, National Bank of Commerce. National Bank of Commerce currently operates seven full-service banking offices in Alabama, ten full-service banking offices in central and northeast Florida (including under the trade names United Legacy Bank and Reunion Bank of Florida) and two full-service banking offices in Atlanta, Georgia (including under the trade names Private Bank of Buckhead, Private Bank of Decatur and PrivatePlus Mortgage). National Bank of Commerce provides a broad array of financial services for commercial and consumer customers.

Additionally, National Bank of Commerce owns a majority stake in Corporate Billing, LLC, a transaction-based finance company headquartered in Decatur, Alabama that provides factoring, invoicing, collection and accounts receivable management services to transportation companies and automotive parts and service providers throughout the United States and parts of Canada.

National Commerce Corporation files periodic reports with the SEC. Copies of its filings may be obtained through the SEC’s website at www.sec.gov or at www.nationalbankofcommerce.com. More information about National Commerce Corporation and National Bank of Commerce may be obtained at www.nationalbankofcommerce.com.

Forward-Looking Statements

Certain statements contained in this press release that are not statements of historical fact constitute forward-looking statements for which the Company claims the protection of the safe harbor provisions contained in the Private Securities Litigation Reform Act of 1995 (the “Act”), notwithstanding that such statements are not specifically identified as such. In addition, certain statements may be contained in the Company’s future filings with the SEC, in press releases and in oral and written statements made by the Company or with the Company’s approval that are not statements of historical fact and that constitute forward-looking statements within the meaning of the Act. Words such as “believes,” “anticipates,” “expects,” “intends,” “targeted,” “continue,” “remain,” “will,” “should,” “may” and other similar expressions are intended to identify forward-looking statements but are not the exclusive means of identifying such statements.

Forward-looking statements made by the Company in this press release, or elsewhere, speak only as of the date on which the statements were made. You are advised to read the risk factors in the Company’s most recently filed Annual Report on Form 10-K and subsequent filings with the SEC, which are available through the website maintained by the SEC at www.sec.gov or by accessing information available at www.nationalbankofcommerce.com. New risks and uncertainties arise from time to time, and it is impossible for the Company to predict these events or how they may affect it or its anticipated results. The Company has no duty to, and does not intend to, update or revise the forward-looking statements in this press release, except as may be required by law. In light of these risks and uncertainties, readers should keep in mind that any forward-looking statement made in this press release may not occur. All data presented herein is as of the date of this release unless otherwise noted.

Contact Information

William E. Matthews, V

Vice Chairman and Chief Financial Officer

National Commerce Corporation

(205) 313-8100