Exhibit 23.3
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in this Registration Statement on FormS-3 of Summit Midstream Partners, LP of our reportdatedFebruary 24, 2017relating to the financial statements of Ohio Condensate Company, L.L.C., which appears in Exhibit 99.2 of Summit Midstream Partners, LP’s Annual Report on Form10-K for the year ended December 31, 2018. We also consent to the reference to us under the heading “Experts” in such Registration Statement.
/s/ PricewaterhouseCoopers LLP
Denver, Colorado
November 18, 2019