RTI Surgical (RTIX) 10-Q 2018 Q1 Quarterly report

Exhibit 32.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER PURSUANT TO

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

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of RTI Surgical, Inc. (the “Company”) on Form10-Q for the quarter ended March 31, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Jonathon M. Singer, Chief Financial and Administrative Officer of the Company, hereby certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, that:

1. The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Jonathon M. Singer	Dated: May 4, 2018
Jonathon M. Singer
Chief Financial and Administrative Officer

The foregoing certification is being furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 and is not being filed as part of this Report or as a separate disclosure document. A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.