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| | | 3Leaf Systems | 1530 | | 3ware | 1226 |
| | ACCESS Systems Americas, Inc. | 502 | | agámi Systems, Inc. | 640 | | Altinity | 1212 | | Altor Networks | | | American Express | 1308 | | APC | 520 | | Applied Data Systems | 1316 | | Appro Intl Inc | 1500 | | Apress | 1312 | | Aptitune Corp | 839 | | Arastra, Inc. | 420 | | ASCO (Emerson Network Power) | 413 | | Astaro Corporation | 1307 | | Avocent | 626 |
| | BiTMICRO Networks, Inc. | 515 | | Bivio Networks, Inc. | 744 | | Blade.org | 726 | | Blue Lane Technologies, Inc | 300 | | Brocade | 526 |
| | CA, Inc. | | | Centrify Corporation | 1501 | | Channel Performance, Inc. | 416 | | Chelsio Communications | 939 | | Cisco Systems, Inc. | | | Citrix Systems Inc | | | Cluster Resources, Inc. | 514 | | Compellent Technologies | 1102 - 1 | | Compellent Technologies | 702 - 1 | | Concursive | 1408 | | COPAN Systems | 740 | | Coverity | 1100 | | Coyote Point Systems | 631 | | Creative Commons | .org 12 | | Cyberscience Corp | 1522 |
| | Data Domain | 1220 | | DataSynapse | 826 | | Dice | 915 | | Dimensional Insight | 1302 | | Distributed Management Task Force (DMTF) | 443 | | DNF Corp | 1315 | | DRBL / Clonezilla (NCHC, Taiwan) | .org 3 | | DriveSavers Data Recovery Inc. | 1430 |
| | Emerson Network Power | 419 | | Enhance Technology, Inc. | 739 | | Etherboot Project | .org 10 |
| | Finisar Corp | 639 | | Fujitsu | 1200 | | Fusion-io | 1103 |
| | GroundWork Open Source, Inc. | 501 |
| | HighPoint Technologies, Inc | 1517 | | Hummingbird - The Open Text Connectivity Solutions Group | 1419 | | Hyperic | 1319 |
| | IBM | | | IEEE Computer Society | 1527 | | ImageStream | 401 | | Ingres | 1408 | | InMage | 1210 | | Installfest for Schools | 1044 | | Intel Corporation | 616 | | Interface Masters Technologies | 1411 | | IPBrick | 1244 |
| | Kerio | 734 | | Krugle | 1317 |
| | Liebert FS Battery-Free UPS Solution | 323 | | Likewise Software | 1340 | | Linpus Technologies, Inc. | 1216 | | Linux Journal | 1622 | | Linux Pro Magazine | 1144 |
| | Messaging Architects | 1526 | | Mission Critical Magazine | 327 | | Myricom | 700 |
| | NetApp | 726-2 | | Neterion | 833 | | New York Times | 1143 | | Novell, Inc. | |
| | One Course Source | 1600 | | Openbravo | 1515 | | Opengear | 322 | | OpenMoko | 1625 | | Oracle Corporation | |
| | Pearson Education | 1529 | | Polywell Computers, Inc | 509 | | Promise Technology | 834 |
| | QLogic Corporation | 410 |
| | Rackable Systems | 602 | | Raritan | 426 | | rPath | 1208 |
| | ServePath Server Hosting | 900 | | Server Technology | 1420 | | Serverlift Corporation | 525 | | Siemon | 321 | | Silicon Mechanics | 1426 | | Splunk | 1416 | | Storage Networking Industry Association | 632 | | StrongMail Systems | | | SugarCRM | 1415 | | Super Micro Computer Inc | 1125 | | SwingSeat(TM) by SmartMotion Technology Inc. | 1334 |
| | Talend | 1408 | | Telelogic | 1603 | | Texas Instruments | 1232 | | The Free BSD Project | .org 1 | | The Gentoo Foundation | .org 11 | | The Linux Foundation | | | TileFlow | 840 | | Townsend Networks | 511 | | Trolltech | 901 | | Trusted Computer Solutions | 1407 | | TWIKI.NET | 1525 | | Tyan Computer Corporation | 1301 |
| | Ubuntu | 716 | | UCSC Extension in Silicon Valley | 1624 | | Unicon Systems Inc | 505 | | Unison | 816 | | Untangle | 932 |
| | Violin Memory | 1502 | | VMware, inc. | 1326 | | Vyatta, Inc. | 1422 |
| | Wind River | 500 |
| | Xen.org | 307 | | Xiotech Corporation | 1409 | | Xirrus | 402 |
| | Zeus Technology | 726-1 | | Zmanda, Inc. | 1504 |

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