Inventergy Global 10-K 2015 FY Annual report

Exhibit 23.1

Independent Registered Public Accounting Firm’s Consent

We consent to the incorporation by reference in the Registration Statement of Inventergy Global, Inc. on Form S-3 (File No. 333-199647) as filed with the Securities and Exchange Commission on October 28, 2014 and the Prospectus dated November 10, 2014, of our report dated April 4, 2016 which includes an explanatory paragraph as to the Company’s ability to continue as a going concern, with respect to our audits of the consolidated balance sheets and the related consolidated statements of operations, stockholders’ equity and cash flows of Inventergy Global, Inc. as of December 31, 2015 and 2014 and for the years then ended, which report is included in this Annual Report on Form 10-K of Inventergy Global, Inc. for the year ended December 31, 2015. We also consent to the reference to our firm under the heading “Experts” in such Registration Statement.

/s/ Marcumllp

Marcumllp

San Francisco, CA

April 4, 2016