Exhibit 32
                                  CERTIFICATION
                                  -------------


      Pursuant to 18 U.S.C. Section 1350 as Adopted Pursuant to Section 906
                        of the Sarbanes-Oxley Act of 2002

Pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the
Sarbanes-Oxley Act of 2002, each of the undersigned officers of Greatbatch, Inc.
(the "Company"), does hereby certify, to such officer's knowledge, that:

The Quarterly Report on Form 10-Q for the quarter ended March 28, 2008 (the
"Form 10-Q ") of the Company fully complies with the requirements of section
13(a) or 15(d) of the Securities Exchange Act of 1934 and the information
contained in the Form 10-Q fairly presents, in all material respects, the
financial condition and results of operations of the Company.



Dated: May 6, 2008           /s/ Thomas J. Hook
                             ------------------------------------
                             Thomas J. Hook
                             President and Chief Executive Officer
                             (Principal Executive Officer)


Dated: May 6, 2008           /s/ Thomas J. Mazza
                             ------------------------------
                             Thomas J. Mazza
                             Senior Vice President and Chief Financial Officer
                             (Principal Financial Officer)

This certification is being furnished solely to accompany this Form 10-Q
pursuant to 18 U.S.C. Section 1350, and is not being filed for purposes of
Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise, and
is not to be deemed incorporated by reference into any filing of the Company
except to the extent the Company specifically incorporates it by reference
therein.


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