EXHIBIT 23

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in the Registration Statement (No. 333-140992) on Form S-8 of our report dated June 19, 2018, which appears in this annual report on Form 11-K of the Crown Cork & Seal Company, Inc. Retirement Thrift Plan for the year ended December 31, 2017.

/s/ Baker Tilly Virchow Krause, LLP

Philadelphia, Pennsylvania

June 19, 2018