<SUBMISSION>
<ACCESSION-NUMBER>0000927016-01-501433
<TYPE>424B3
<PUBLIC-DOCUMENT-COUNT>1
<FILING-DATE>20010613
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>ACT MANUFACTURING INC
<CIK>0000937971
<ASSIGNED-SIC>3672
<IRS-NUMBER>042777507
<STATE-OF-INCORPORATION>MA
<FISCAL-YEAR-END>1231
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>424B3
<ACT>33
<FILE-NUMBER>333-41406
<FILM-NUMBER>1660260
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>2 CABOT ROAD
<CITY>HUDSON
<STATE>MA
<ZIP>01749
<PHONE>9785680105
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>53 STATE ST
<CITY>BOSTON
<STATE>MA
<ZIP>02109
</MAIL-ADDRESS>
</FILER>
<DOCUMENT>
<TYPE>424B3
<SEQUENCE>1
<FILENAME>d424b3.txt
<DESCRIPTION>FORM 424B3
<TEXT>

<PAGE>

                             Prospectus Supplement
                      (To Prospectus dated August 4, 2000)

                                                Filed pursuant to Rule 424(b)(3)
                                                Registration No. 333-41406

                                  [ACT LOGO]


                                 $100,000,000

              7% CONVERTIBLE SUBORDINATED NOTES DUE APRIL 15, 2007
           AND THE COMMON STOCK ISSUABLE UPON CONVERSION OF THE NOTES

                                ________________

     This prospectus supplement relates to the resale by the holders of ACT
Manufacturing, Inc. 7% Convertible Subordinated Notes Due April 15, 2007 and the
shares of common stock, $.01 par value per share, issuable upon the conversion
of the notes.

     This prospectus supplement should be read in conjunction with, and may not
be delivered or utilized without, the prospectus dated August 4, 2000, including
any amendments or supplements thereto.  The terms of the notes are set forth in
the prospectus.

     The information in the table appearing under the heading "Selling
Securityholders" in the prospectus is amended by adding the information below
with respect to persons not previously listed in the prospectus or in any
amendments or supplements thereto, and by superceding the information with
respect to persons previously listed in the prospectus or in any amendments or
supplements thereto that are listed below:

<TABLE>
<CAPTION>
                                                 Principal Amount at
                                                  Maturity of Notes                                  Number of Shares of
                                             Beneficially Owned That May     Percentage of Notes     Common Stock That
          Name                                         Be Sold                   Outstanding             May Be Sold
          ----                               ---------------------------     -------------------     -------------------
<S>                                                  <C>                           <C>                    <C>
Clinton Riverside Convertible                        $1,000,000                    1.0000%                23,310.02
Portfolio Limited
</TABLE>
                              ____________________

            The Date Of This Prospectus Supplement Is June 13, 2001.
</TEXT>
</DOCUMENT>
</SUBMISSION>
