| Name | Country | Market Cap (US$) |
|---|
| Micrognosis Inc. | United States | Private |
| MICROMUSE U K HOLDINGS LTD | United Kingdom | Private |
| MICRON TECHNOLOGY ITALIA SRL | Italy | Private |
| MICROS-FIDELIO GmbH | Germany | Private |
| MICROS-FIDELIO U.K. LTD | United Kingdom | Private |
| Microsoft France | France | Private |
| Microsoft GmbH | Germany | Private |
| Microsoft Hong Kong Limited | Hong Kong | Private |
| MICROSOFT INSTITUTE PTY. LIMITED | Australia | Private |
| MICROSOFT IRELAND OPERATIONS LTD | Republic of Ireland | Private |
| MICROSOFT RESEARCH LTD | United Kingdom | Private |
| Microsol Holdings, Ltd. | Republic of Ireland | Private |
| MICROSTRATEGY LTD | United Kingdom | Private |
| Microtek Computer Technology (Wujiang) Co.,Ltd. | China | Private |
| MicroTest, Inc. | United States | Private |
| MicroTouch Systems, Inc. | United States | Private |
| Microware Systems Corporation | United States | Private |
| Micsom Ltd | Finland | Private |
| MIDLAND SOFTWARE LTD | United Kingdom | Private |
| MidStream Technologies, Inc. | United States | Private |
| Migo Software Inc | United States | Private |
| Millennial Net, Inc. | United States | Private |
| Millennium Electronics | United States | Private |
| Miller Anlagen Gesellschaft mit beschränkter Haftung | Germany | Private |
| Miller Leasing Miete Gesellschaft mit beschränkter Haftung | Germany | Private |
| Miltope Group Inc. | United States | Private |
| MIMOS SMART COMPUTING SDN BHD | Malaysia | Private |
| MIND S.P.A. | Italy | Private |
| MINDCSAPE FRANCE | France | Private |
| MINDTREE CONSULTING PRIVATE LTD. | Japan | Private |
| MINO GROUP, K.K. | Japan | Private |
| Miracom, Inc. | South Korea | Private |
| Miramar Systems, Inc. | United States | Private |
| Miro Displays GmbH | Germany | Private |
| Misawa Van Corporation | Japan | Private |
| Mission Critical Technical Services Corp | United States | Private |
| Mission Testing plc | United Kingdom | Private |
| MISSLER SOFTWARE | France | Private |
| Misys Healthcare Systems | United States | Private |
| MISYS INTERNATIONAL BANKING SYSTEMS LTD | Republic of Ireland | Private |
| MISYS INTERNATIONAL BANKING SYSTEMS SA | Luxembourg | Private |
| Mitrionics AB | Sweden | Private |
| Mitsubishi Display Devices Amer Inc | United States | Private |
| Mitsui Leasing & Development, Ltd. | Japan | Private |
| MIYAKOSHI SEIKI K.K. | Japan | Private |
| MIYUKI SEIKI K.K. | Japan | Private |
| Mkc Stat Corporation | Japan | Private |
| MKIRisk Software, Inc. | United States | Private |
| Mks Software Inc | United States | Private |
| ML Indústria Eletrônica S/A. | Brazil | Private |
| MMT Computing plc | United Kingdom | Private |
| MNEMO EVOLUTION & INTEGRATION SERVICES S.A. | Spain | Private |
| Mobileforce Technologies 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 |
| Moduslink Electronic Technology (Shenzhen) Co., Ltd. | China | Private |
| MODUSLINK KILDARE | Republic of Ireland | Private |
| Mokoh & Associates, Inc. | Taiwan | Private |
| Moneyline | France | Private |
| Mosaic Technologies Corporation | Canada | Private |
| Moss Software Inc | United States | Private |
| Motion Computing, Inc. | United States | Private |
| Motive Communications Inc | United States | Private |
| Motorola Computer Group (MCG) | United States | Private |
| MPC Corporation | United States | Private |
| MPI Tech A/S | Denmark | Private |
| MRO Software Inc. | United States | Private |
| MSI Computer (SZ) Co., Ltd. | China | Private |
| MSL FRANCE OPERATIONS | France | Private |
| MTF Data AG | Switzerland | Private |
| Multiactive Software Inc | Canada | Private |
| MULTITECH SYSTEMS PTE. LTD. | Singapore | Private |
| MUSASHI ENGINEERING CO.,LTD. | Japan | Private |
| Mutoh Europe NV | Belgium | Private |
| Mylex Corporation | United States | Private |
| Mynd | United States | Private |
| Myriad Logic Inc | United States | Private |
| N C R GLOBAL SOLUTIONS LTD | Republic of Ireland | Private |
| N C R LTD | United Kingdom | Private |
| N H S INFORMATION AUTHORITY | United Kingdom | Private |
| N I I T TECHNOLOGIES LTD | United Kingdom | Private |
| N M COMPUTER SERVICES PTY LTD | Australia | Private |
| N TECH, K.K. | Japan | Private |
| N. B. Jackets de Puerto Rico | Puerto Rico | Private |
| N.C.H. NETWORK COMPUTER HOUSE SPA | Italy | Private |
| N.I.P. NIKUV INTERNATIONAL PROJECTS LTD. | Israel | Private |
| N.V. Xerox S.A. | Belgium | Private |
| N2H2, Inc. | United States | Private |
| NAGAHAMA CANON INC. | Japan | Private |
| NAI Technologies, Inc. | United States | Private |
| NAKAJIMA ALL PRECISION CO.,LTD. | Japan | Private |
| NAMIKI PRECISION OF S'PORE PTE LTD | Singapore | Private |
| NANOX CO.,LTD. | Japan | Private |
| NARUS, Inc. | United States | Private |
| National Display Systems Inc | United States | Private |
| National Education Training Group | United States | Private |
| National Group For Communications & Computer Ltd | Saudi Arabia | Private |
|
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