• XcaliburTrading, Inc.
• Xcare.net
• Xcel Communications Corporation
• Xcert International, Inc.
• Xenonics
• XEROX
• Xerox Global Services
• Xilinx
• XiNCOM
• XIOtech Corporation
• Xiran
• XL Connect
• Xnergy, Inc.
• XN Holdings
• XO Communications
• Xoriant
• Xporta, Inc.
• XP Software, Inc.
• XP Systems
• Xsequor
• XS International
• X-TEL Communications, Inc.
• Xtrasource Inc
• XVionics
• Xytrans, Inc.