| Name | Country | Market Cap (US$) |
|---|
| MNEMO EVOLUTION & INTEGRATION SERVICES S.A. | Spain | Private |
| Mobileforce Technologies Inc | United States | Private |
| Mobilitec, Inc. | United States | Private |
| Mobite A/S | Denmark | Private |
| Mobitrac, Inc. | United States | Private |
| Mobliss Inc. | United States | Private |
| MOCOM LTD | United Kingdom | Private |
| MODUS MEDIA INTERNATIONAL DUBLIN | Republic of Ireland | Private |
| MORSE BUSINESS APPLICATIONS LTD | United Kingdom | Private |
| Mosaic Technologies Corporation | Canada | Private |
| Moss Software Inc | United States | Private |
| Motive Communications Inc | United States | Private |
| MPI Tech A/S | Denmark | Private |
| Msg Systems Ag | Germany | Private |
| MTCSC, Inc. | United States | Private |
| MTF Data AG | Switzerland | Private |
| Multiactive Software Inc | Canada | Private |
| MySQL AB | Sweden | Private |
| N C R GLOBAL SOLUTIONS LTD | Republic of Ireland | Private |
| N I I T TECHNOLOGIES LTD | United Kingdom | Private |
| N M COMPUTER SERVICES PTY LTD | Australia | Private |
| N.C.H. NETWORK COMPUTER HOUSE SPA | Italy | Private |
| Nanjing Xinwang Technology Company Limited | China | Private |
| NARUS, Inc. | United States | Private |
| NATIONAL MILK RECORDS EMPLOYEE SHARE SCHEME TRUSTEES LTD | United Kingdom | Private |
| Naughty Dog, Inc. | United States | Private |
| Navisys Inc | United States | Private |
| NAVITIME JAPAN CO.,LTD. | Japan | Private |
| Navitrak International Corp | Canada | Private |
| NBS Technologies Inc | Canada | Private |
| nCipher plc | United Kingdom | Private |
| NCR Ceska republika spol. s r.o. | Czech Republic | Private |
| NDCHealth Corporation | United States | Private |
| NDS TECHNOLOGIES FRANCE | France | Private |
| NDS UK | United Kingdom | Private |
| NEC AEROSPACE SYSTEM LTD. | Japan | Private |
| NEC SOFTWARE KYUSYU,LTD. | Japan | Private |
| NEC System Technologies | Japan | Private |
| NEC TECHNOLOGIES (UK) LTD | United Kingdom | Private |
| NedGraphics N.V. | Netherlands | Private |
| Neogent, Inc. | United States | Private |
| Netcube Systems Inc | United States | Private |
| NetFormx, Inc. | United States | Private |
| NetGalactic Inc. | India | Private |
| NETIQ EUROPE LTD | Republic of Ireland | Private |
| NETIQ IRELAND LIMITED | Republic of Ireland | Private |
| Netkoncept A/S | Denmark | Private |
| NetRaker | United States | Private |
| Netsize | France | Private |
| NETSIZE ESPANA S.L. | Spain | Private |
| Netwise AB | Sweden | Private |
| NETWORK APPLIANCE LTD. | United Kingdom | Private |
| Network General Corporation | United States | Private |
| NeuLion Incorporated | United States | Private |
| Neverfail Inc. | United States | Private |
| New Moon Systems, Inc. | United States | Private |
| Newbay Software Ltd | Republic of Ireland | Private |
| NewCheck Corp. | United States | Private |
| Newfoundland and Labrador Refining Corporation | Canada | Private |
| NewsEdge Corporation | United States | Private |
| NEWTON INC. | Japan | Private |
| Nexidia, Inc. | United States | Private |
| NEXTIRAONE SERVICES LTD | United Kingdom | Private |
| NextMark, Inc. | United States | Private |
| Nexus Group International Inc. | Canada | Private |
| Nexxlink Technologies Inc. | Canada | Private |
| NHN JAPAN CORPORATION | Japan | Private |
| Nicator Group Ab | Sweden | Private |
| Nihon Inter Systems K.K. | Japan | Private |
| NIHON SYNOPSYS CO.,LTD. | Japan | Private |
| Niku Corporation | United States | Private |
| Nippon COMSYS Corporation | Japan | Private |
| Niscom Inc. | Japan | Private |
| NitroSecurity Inc | United States | Private |
| Norcom Information Technology AG | Germany | Private |
| Nordic Processor AB | Sweden | Private |
| NORTHBROOK TECHNOLOGY OF NORTHERN IRELAND LTD | United Kingdom | Private |
| NORTHGATE HR LTD | United Kingdom | Private |
| Northgate Information Solutions plc | United Kingdom | Private |
| NORTHGATE INFORMATION SOLUTIONS U K LTD | United Kingdom | Private |
| Notiva Corporation | United States | Private |
| Novarra, Inc. | United States | Private |
| NOVELL IRELAND SOFTWARE LTD | Republic of Ireland | Private |
| NOVELL U.K. LTD | United Kingdom | Private |
| Novelsoft GmbH | Switzerland | Private |
| Novitech AS | Slovakia | Private |
| NOXS Belgium NV | Belgium | Private |
| NRX Global Corporation | Canada | Private |
| NS SOLUTIONS KANSAI CORPORATION | Japan | Private |
| NSB Retail Systems plc | United Kingdom | Private |
| NTL (CWC) PROGRAMMING LTD | United Kingdom | Private |
| Ntt Data Systems Corporation | Japan | Private |
| Ntt Software Corp | Japan | Private |
| Numetrix Limited | Canada | Private |
| Oao Corporation | United States | Private |
| OASI DIAGRAM OUTSOURCING APPLICATIVO E SERVIZI INNOVATIVI SPA | Italy | Private |
| Oasis Silicon Systems Ag | Germany | Private |
| Obigo AB | Sweden | Private |
| Object Products Inc | United States | Private |
| Objectif Pty Ltd | Australia | Private |
|
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