EXHIBIT 31


                            CERTIFICATION PURSUANT TO
                              18 USC, SECTION 1350,
                             AS ADOPTED PURSUANT TO
                  SECTION 302 OF THE SARBANES OXLEY ACT OF 2002


I, Frederick J. Slack, certify that:

     1.   I have  reviewed  this annual  report on Form 10-KSB of 3Si  Holdings,
          Inc. (the "Registrant" or the "Company");

     2.   Based on my  knowledge,  this  report  does  not  contain  any  untrue
          statement  of a  material  fact  or  omit to  state  a  material  fact
          necessary  in  order  to make  the  statements  made,  in light of the
          circumstances  under which such  statements  were made, not misleading
          with respect to the period covered by this report;

     3.   Based on my knowledge,  the financial statements,  and other financial
          information  included in this report,  fairly  present in all material
          respects the financial condition, results of operations and cash flows
          of the  Registrant  as of,  and for,  the  periods  presented  in this
          report;

     4.   I am responsible for establishing and maintaining  disclosure controls
          and  procedures  (as  defined  in  Exchange  Act Rules  13a-15(e)  and
          15d-15(e)) for the Registrant and have:

          a.   Designed such disclosure controls and procedures,  or caused such
               disclosure  controls  and  procedure  to  be  designed  under  my
               supervision,  to ensure that material information relating to the
               Registrant  (including its  consolidated  subsidiaries),  is made
               known to me by others within those entities,  particularly during
               the period in which this report is being prepared;

          b.   Evaluated  the  effectiveness  of  the  Registrant's   disclosure
               controls  and   procedures   and  presented  in  this  report  my
               conclusions  about the  effectiveness of the disclosure  controls
               and  procedures,  as of the  end of the  period  covered  by this
               report based upon such evaluations; and

          c.   Disclosed in this report any change in the registrant's  internal
               control  over  financial   reporting  that  occurred  during  the
               registrant's most recent fiscal quarter (the registrant's  fourth
               quarter  in the case of an  annual  report)  that has  materially
               affected,  or is  reasonably  likely to  materially  affect,  the
               registrant's internal control over financial reporting: and

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     5.   I have  disclosed,  based on my most  recent  evaluation  of  internal
          control over financial reporting, to the registrant's auditors and the
          Audit  Committee of the  registrant's  Board of Directors  (or persons
          performing the equivalent function):

          a.   All  significant  deficiencies  and  material  weaknesses  in the
               design or operation of internal control over financial  reporting
               which are reasonably  likely to adversely affect the registrant's
               ability  to  record,  process,  summarize  and  report  financial
               information; and

          b.   Any fraud,  whether or not material,  that involves management or
               other employees who have a significant  role in the  registrant's
               internal control over financial reporting


Dated: June 13, 2006                         s/Frederick J. Slack
                                             -----------------------------------
                                             Frederick J. Slack, Chief Executive
                                             Officer/Chief Financial Officer