Customers Bancorp (CUBI) 8-K Changes in Registrant's Certifying Accountant

Tel: 215-564-1900 1801 Market Street, Suite 1700 Fax: 215-564-3940 Philadelphia, PA 19103 www.bdo.com March 7, 2019 Securities and Exchange Commission 100 F Street N.E. Washington, D.C. 20549 We have been furnished with a copy of the response to Item 4.01 of Form 8-K for the event that occurred on March 4, 2019, to be filed by our former client, Customers Bancorp, Inc. We agree with the statements made in response to that Item insofar as they relate to our Firm. Very truly yours, BDO USA, LLP, a Delaware limited liability partnership, is the U.S. member of BDO International Limited, a UK company limited by guarantee, and forms part of the international BDO network of independent member firms. BDO is the brand name for the BDO network and for each of the BDO Member Firms.