Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statements No. 333-30847, 333-57952, 333-101233, 333-107111, 333-119042, and 333-145218 on Forms S-8 of our reports dated March 2, 2015, relating to the consolidated financial statements and financial statement schedule of Epiq Systems, Inc. and subsidiaries, and the effectiveness of Epiq Systems, Inc. and subsidiaries’ internal control over financial reporting, appearing in this Annual Report on Form 10-K of Epiq Systems, Inc. and subsidiaries for the year ended December 31, 2014.

/s/ DELOITTE & TOUCHE LLP

Kansas City, Missouri

March 2, 2015