Certification of CEO and CFO 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 Annual Report on Form 10-K of Harris & Harris Group, Inc.
(the  "Company") for the quarterly  period ended December 31, 2005 as filed with
the  Securities  and  Exchange  Commission  on the date hereof  (the  "Report"),
Charles E. Harris,  as Chief  Executive  Officer of the Company,  and Douglas W.
Jamison,  as Chief  Financial  Officer of the  Company,  each hereby  certifies,
pursuant  to 18  U.S.C.  ss.  1350,  as  adopted  pursuant  to  ss.  906  of the
Sarbanes-Oxley Act of 2002, that, to the best of his knowledge:

      (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/ Charles E. Harris
--------------------------------
Name:  Charles E. Harris
Title: Chief Executive Officer
Date:  March 16, 2006


/s/ Douglas W. Jamison
--------------------------------
Name:  Douglas W. Jamison
Title: Chief Financial Officer
Date:  March 16, 2006