Cryoport (CYRX) 10-Q 2009 Q4 Quarterly report

EXHIBIT 32.1

CERTIFICATION 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 the Cryoport, Inc. (the “Company”) on Form 10-Q for the period ended December 31, 2009 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Larry G. Stambaugh, Chief Executive Officer, President of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1)   The Quarterly 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 Quarterly Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Larry G. Stambaugh

LARRY G. STAMBAUGH

Chief Executive Officer, President and Chairman

February 16, 2010

In connection with the Quarterly Report of the Cryoport, Inc. (the “Company”) on Form 10-Q for the period ended December 31, 2009 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Catherine M. Doll, Chief Financial Officer, of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1)   The Quarterly 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 Quarterly Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Catherine M. Doll

CATHERINE M. DOLL

Chief Financial Officer

February 16, 2010

A signed original of this written statement required by Section 906 has been provided to Cryoport, Inc and will be retained by Cryoport, Inc and furnished to the Securities and Exchange Commission or its staff upon request.

This Certification is being furnished pursuant to Rule 15(d) and shall not be deemed “filed” for purposes of Section 18 of the Exchange Act (15 U.S.C. 78r), or otherwise subject to the liability of that section. This Certification shall not be deemed incorporated by reference into any filing under the Securities Act or the Exchange Act, except to the extent that the Company specifically incorporates it by reference.