Home Networking The 50 most powerful people Our annual look at the influential personalities shaping your network infrastructure By Julie Bort and Beth Schultz Network World | CategoryNameTitleCompanyPOWER ELITEJohn ChambersCEO Cisco Larry EllisonCEOOracle Bill GatesChairmanMicrosoft Sam PalmisanoChairman and CEOIBM Ivan SeidenbergChairman and CEOVerizon Joe TucciPresident and CEOEMC Edward WhitacreChairman and CEOThe new AT&T ENTERPRISE NETWORK EXECUTIVESDavid BarnesSenior vice president and CIOUPS Robert CarterCIOFedEx Tom GergetsDirector of networks & infrastructureMcDonald’s U.S.A. Chad MeadGlobal head of security eventmanagementJPMorgan Chase John PartridgePresident and CEOInovant Ralph SzygendaCIOGM Fred WettlingTechnology strategy managerBechtel ENTERPRISE COMPUTINGSteve BallmerCEOMicrosoft Diane GreenePresidentVMware Mark HurdChairman and CEOHP Bob MoffatSenior vice president, Integrated OperationsIBM Paul OtelliniPresident and CEOIntel Hector RuizChairman and CEOAdvanced Micro Devices Matt SzulikChairman and CEORed Hat Daniel WarmenhovenCEONetwork Appliance APP INFRASTRUCTUREShai AgassiPresident, Product and Technology GroupSAP Marc BenioffChairman and CEOSalesforce.com Aneel BhusruPartnerGreylock Partners Greg GianforteChairman and CEORightNow Technologies Ray OzzieChief software architectMicrosoft Eric SchmidtCEOGoogle Ann WinbladPartnerHummer Winblad Venture Partners NET INFRASTRUCTUREBrad BoothPresidentEthernet Alliance John D’AmbrosiaChairIEEE 802.3 Higher Speed Study Group Louis D’AmbrosioPresident and CEOAvaya Charlie GiancarloSenior vice president and chief development officerCisco Kelly HerrellCEOVyatta Scott KriensCEOJuniper Mark SpencerPresidentDigium Peter StanforthVice president, Mesh NetworkingMotorola Mike ZafirovskiPresident and CEONortel COMMUNICATIONSCraig McCawFounder and co-CEO,Clearwire Gary ForseeChairman, president and CEOSprint Nextel John ScanlonCEOYipes Enterprise Services NET SECURITYSteve HannaDistinguished engineerJuniper Suzanne GormanManaging director of corporate information securitySecurities Industry Automation Corp. (SIAC) Eugene SpaffordExecutive director, Center for Education and Research in Information Assurance and SecurityPurdue University John ThompsonChairman and CEOSymantec Bill YerazunisSenior research scientistMitsubishi Electric Research Laboratories REGULATORYChristopher CoxChairmanSecurities and Exchange Commission Greg GarciaAssistant secretary for cybersecurity and telecommunicationsU.S. Department of Homeland Security Kevin MartinChairmanFederal Communications Commission Ted StevensChairmanSenate Commerce Committee Join the Network World communities on Facebook and LinkedIn to comment on topics that are top of mind. Related: Networking Cisco Systems Microsoft IBM Oracle Verizon Copyright © 2006 IDG Communications, Inc.