EXHIBIT 21
                                                                2002 Plexus 10-K


1.       Plexus Services Corp. ("Services"), a Nevada corporation and subsidiary
         of Plexus Corp.

         a.       Plexus Electronic Assembly Corp. ("PEAC"), a Nevada
                  corporation and subsidiary of Services

                  (i)      Plexus International Sales and Logistics, LLC
                           ("PISL"), a Delaware LLC and subsidiary of PEAC

                  (ii)     Plexus QS, LLC, ("PQS") a Delaware LLC and subsidiary
                           of PEAC

                  (iii)    Plexus South, S. de R.L. de C.V., ("PSS") a Mexico
                           entity and subsidiary of PISL and PQS (being merged
                           into Plexus Electronica S. de R.L. de C.V.)

                  (iv)     Plexus Electronica S.de R.L. de C.V., a Mexico entity
                           and subsidiary of PSS and PQS

                  (v)      Plexus de Servicios Management, S.de R.L. de C.V., a
                           Mexico entity and subsidiary of PSS and PQS (being
                           merged into Plexus Servicios, S. de R.L. de C.V.)

                  (vi)     Plexus Servicios, S.de R.L. de C.V., a Mexico entity
                           and subsidiary of PSS and PQS

                  (vii)    Plexus Nampa LLC, a Delaware LLC and subsidiary of
                           PEAC (being merged into PEAC)

         b.       Plexus Technology Group, Inc., a Nevada corporation and
                  subsidiary of Services.

         c.       Plexus NPI Plus Corp., a Nevada corporation and subsidiary of
                  Services (being merged into PEAC)

2.       Plexus International Services, Inc. ("PISI"), a Nevada corporation and
         subsidiary of Plexus Corp.

         a.       Plexus Corp. Limited ("PCL"), a United Kingdom corporation and
                  subsidiary of PISI

                  (i)      Plexus Corp. (UK) Limited ("PCUKL"), a United Kingdom
                           corporation and subsidiary of PCL

                  (ii)     Plexus Corp. (Kelso) Limited, a United Kingdom
                           corporation and subsidiary of PCUKL (inactive)

                  (iii)    Plexus Corp. (Maldon) Limited, a United Kingdom
                           corporation and subsidiary of PCUKL (inactive)









         b.       Plexus Technology Group, Limited, a United Kingdom corporation
                  and subsidiary of PISI (inactive)

         c.       Plexus International, LLC, an Oregon limited liability company
                  and subsidiary of PISI

         d.       Plexus Asia, Ltd. ("PAL"), a British Virgin Islands
                  corporation

                  (i)      Plexus (Xiamen) Co., Ltd., a Peoples' Republic of
                           China corporation and subsidiary of PAL

                  (ii)     Plexus Manufacturing Sdn. Bhd., a Malaysia
                           corporation and subsidiary of PAL

3.       QTRON, Inc., a California corporation and subsidiary of Plexus Corp.

4.       Plexus ABS, Inc., a Nevada corporation and subsidiary of Plexus Corp.

5.       PTL Information Technology Services Corp., a Nevada corporation and
         subsidiary of Plexus Corp.

6.       Plexus Property Holding Corp., a Nevada corporation and subsidiary of
         Plexus Corp.