Exhibit 15.1

Consent of Independent Registered Public Accounting Firm

The Board of Directors

Endava plc:

We consent to the incorporation by reference in the registration statements (Nos. 333-228717, 333-248904 and 333-259900) on Form S-8 of our reports dated October 31, 2022, with respect to the consolidated financial statements of Endava plc and the effectiveness of internal control over financial reporting.

/s/ KPMG LLP

London, United Kingdom

October 31, 2022