| Name | Country | Market Cap (US$) |
|---|
| Galileo International, Inc. (Del) | United States | Private |
| Gamespy Industries, Inc. | United States | Private |
| GAMESTOP GROUP LTD | Republic of Ireland | Private |
| Gancom, Inc | United States | Private |
| Garden.com, Inc. | United States | Private |
| GARTNER AUSTRALASIA PTY LIMITED | Australia | Private |
| Gascard Inc | United States | Private |
| Gateway Systems (India) Pvt. Ltd. | India | Private |
| Gather Inc. | United States | Private |
| GaVI Gesellschaft für angewandte Versicherungs-Informatik mbH | Germany | Private |
| Gay Financial Network, Inc. | United States | Private |
| GB GROUP PLC | United Kingdom | Private |
| GC Micro Corporation | United States | Private |
| GE CAPITAL INFORMATION TECHNOLOGY SOLUTIONS HOLDINGS | United Kingdom | Private |
| Ge Capital International Services - Americas Inc | United States | Private |
| GE EUROPEAN EQUIPMENT FINANCE LTD | United Kingdom | Private |
| GE.SI. GESTIONE SISTEMI INFORMATICI SOCIETA' CONSORTILE PER AZIO | Italy | Private |
| GEAC ENTERPRISE SOLUTIONS DEVELOPMENT LTD | United Kingdom | Private |
| gearunlimited.com Inc. | Canada | Private |
| Gedas U S A Inc | United States | Private |
| GEDAS UNITED KINGDOM LTD | United Kingdom | Private |
| Geek Squad, Inc. | United States | Private |
| Gemini Voice Solutions, Inc. | United States | Private |
| Gemplex, Inc. | United States | Private |
| GENERAL ELECTRIC HEALTHCARE ESPANA SA | Spain | Private |
| General Information Services Inc | United States | Private |
| Generali VIS Informatik GmbH | Austria | Private |
| Generic Media, Inc. | United States | Private |
| GENERIC SOFTWARE CONSULTANTS LTD. | United Kingdom | Private |
| Genesee Survey Services Inc | United States | Private |
| Genesis Corp | United States | Private |
| Genisys Consulting, Inc. | United States | Private |
| Genuity Inc. | United States | Private |
| GeoCities | United States | Private |
| Geomatikk AS | Norway | Private |
| Georg Fischer Logimatik Ag | Switzerland | Private |
| Gerry Weber Service International GmbH | Germany | Private |
| GESIS Gesellschaft für Informationssysteme mit beschränkter Haft | Germany | Private |
| Getronics Australia Pty Limited | Australia | Private |
| Getronics Belgium NV | Belgium | Private |
| GETRONICS LTD | United Kingdom | Private |
| GetThere.com, Inc. | United States | Private |
| GETTY IMAGES PTY LTD | Australia | Private |
| GfD Gesellschaft für Datenverarbeitung mbH | Germany | Private |
| Gfinet Inc | United States | Private |
| GFK MARKETING SERVICE JAPAN LTD. | Japan | Private |
| Ggs Management, Inc. | United States | Private |
| GiftCertificates.com, Inc. | United States | Private |
| GIFU-KEN SHICHOSON GYOSEI JOHO CENTER, FOUNDATION | Japan | Private |
| GIFUKEN SANGYO KEIZAI SHINKO CENTER, FOUNDATION | Japan | Private |
| Gigex, Inc. | United States | Private |
| GimmeaBid.com, Inc. | United States | Private |
| GISA GmbH | Germany | Private |
| Glass's Guide Service Ltd | United Kingdom | Private |
| Glenn Computer Corp | United States | Private |
| Global Analytic Information Technology Services, Inc. | United States | Private |
| Global Domains International, Inc. | United States | Private |
| Global eXchange Services, Inc. | United States | Private |
| Global Knowledge Network Corporation | United States | Private |
| Global Resource Management Inc | United States | Private |
| GLOBAL SHARED SERVICES SRL | Italy | Private |
| Global Value Services SPA | Italy | Private |
| Global Value Soluçoes S/A. | Brazil | Private |
| GlobalCenter, Inc. | Bermuda | Private |
| GlobalEnglish Corporation | United States | Private |
| GlobalLearningSystems | United States | Private |
| GlobalSpec, Inc. | United States | Private |
| GLOBE-SYS Informatikai Tanacsado Korlatolt Felelossegu Tarsasag | Hungary | Private |
| GLOBIX HOLDINGS (UK) LTD | United Kingdom | Private |
| Go2 Systems, Inc. | United States | Private |
| GoBeam, Inc. | United States | Private |
| Gocargo.Com | United States | Private |
| Gomez Advisors, Inc. | United States | Private |
| GOOGLE IRELAND LTD | Republic of Ireland | Private |
| goracing.com, inc. | United States | Private |
| Grande Communications Holdings Inc. | United States | Private |
| Grant Media, LLC | United States | Private |
| Graydon Belgium NV | Belgium | Private |
| Great Works Internet | United States | Private |
| Green Informatique Groupe | France | Private |
| GREY MATTER LTD | United Kingdom | Private |
| GREYHAWK North America, LLC | United States | Private |
| Groceryworks.Com Inc | United States | Private |
| GROP, K.K. | Japan | Private |
| GRUPO IT DEUSTO SOCIEDAD LIMITADA. | Spain | Private |
| GRZ IT Center Linz GmbH | Austria | Private |
| GTI SOFTWARE Y NETWORKING SA | Spain | Private |
| Gts Novera Contact, S.R.O. | Czech Republic | Private |
| Guardent Inc | United States | Private |
| Guideline Inc | United States | Private |
| GWS Gesellschaft für Warenwirtschafts-Systeme mbH | Germany | Private |
| GXS LTD | United Kingdom | Private |
| Half.com, Inc. | United States | Private |
| Hammer Group Plc | United Kingdom | Private |
| HANKYU BUSINESS ASSOCIATE CO.,LTD. | Japan | Private |
| Harland Simon Group plc | United Kingdom | Private |
| Harris InfoSource International Inc. | United States | Private |
| Harris Interactive Inc | United States | Private |
| Hartfield Titus & Donnelly LLC | United States | Private |
| Hartlepool Water plc | United Kingdom | Private |
|
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