Hortonworks 10-Q 2017 Q3 Quarterly report

Exhibit 32.1

CERTIFICATIONS OF CHIEF EXECUTIVE OFFICER

AND CHIEF FINANCIAL OFFICER PURSUANT TO

18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Robert Bearden, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report on Form10-Q of Hortonworks, Inc. for the quarter ended September 30, 2017 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Quarterly Report on Form10-Q fairly presents, in all material respects, the financial condition and results of operations of Hortonworks, Inc.

Date: November 7, 2017	By:	/s/ Robert Bearden
	Name:	Robert Bearden
	Title:	Chief Executive Officer

I, Scott Davidson, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report on Form10-Q of Hortonworks, Inc. for the quarter ended September 30, 2017 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Quarterly Report on Form10-Q fairly presents, in all material respects, the financial condition and results of operations of Hortonworks, Inc.

Date: November 7, 2017	By:	/s/ Scott Davidson
	Name:	Scott Davidson
	Title:	Chief Financial Officer and Chief Operating Officer