Exhibit 23.1
Consent of Independent Registered Public Accounting Firm
MDC Partners Inc.
New York, New York
We hereby consent to the incorporation by reference in the Prospectus constituting a part of this Registration Statement of our reports dated March 1, 2018, relating to the consolidated financial statements, the effectiveness of MDC Partner Inc.’s internal control over financial reporting and schedules of MDC Partners Inc. appearing in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017.
/s/BDO USA, LLP
New York, New York
August 17, 2018