| Year | Company | Business | Value | |
|---|
| 2008 | AppStream | Application Streaming | $53,000,000 | |
| 2008 | Huawei Technologies Co., Ltd. | Telecommunications | $150,000,000 | |
| 2008 | MessageLabs | SaaS Security Provider | $695,000,000 | |
| 2008 | nSuite Technologies | Desktop virtualization | $20,000,000 | |
| 2008 | PC Tools | Utility software | $250,000,000 | |
| 2008 | SwapDrive | Web-based software | $124,000,000 | |
| 2007 | 4FrontSecurity | Risk management | Not Dislosed | |
| 2007 | Altiris | Wholesale software | $1,015,000,000 | |
| 2007 | DolphinSearch | Next generation technology | Not Dislosed | |
| 2007 | Vontu | Data security software | $350,000,000 | |
| 2006 | BindView | Network management software | $211,306,000 | |
| 2006 | Company-i | Information technology | $25,000,000 | |
| 2006 | IMlogic | IM protection software | $90,700,000 | |
| 2006 | Relicore | Management software | Not Dislosed | |
| 2006 | Revivio | Continuous data protection | Not Dislosed | |
| 2005 | Sygate Technologies | Software | Not Dislosed | |
| 2005 | Veritas Software | Business applications software | $13,520,000,000 | |
| 2005 | WholeSecurity | Security software | Not Dislosed | |
| 2004 | @stake | Digital security | Not Dislosed | |
| 2004 | Brightmail | Anti-spam software | $370,000,000 | |
| 2004 | LIRIC Associates | Computer consulting | Not Dislosed | |
| 2004 | ON Technology | Network security software | $101,110,000 | |
| 2004 | Platform Logic | Software | Not Dislosed | |
| 2004 | TurnTide | Anti-spam software | $28,000,000 | |
| 2003 | Nexland | Internet access | $19,600,000 | |
| 2003 | PowerQuest | Software | $150,000,000 | |
| 2003 | Roxio-Goback Sys Recovery Ast | System recovery | $13,000,000 | |
| 2003 | SafeWeb | Security and privacy | $26,000,000 | |
| 2002 | Mountain Wave | Enterprise security management | $20,000,000 | |
| 2002 | Recourse Technologies | Internet security | $135,000,000 | |
| 2002 | Riptech | Managed security | $145,000,000 | |
| 2002 | SecurityFocus | Computer system security | $75,000,000 | |
| 2001 | Lindner & Pelc Consult | Computer consulting | Not Dislosed | |
| 2000 | AXENT Technologies | Software | $988,066,000 | |
| 2000 | Brightmail | Anti-spam software | $18,000,000 | |
| 2000 | L-3 Commun Network Security | Security solutions | $20,000,000 | |
| 1999 | Quarterdeck | Utilities and community software | $78,411,000 | |
| 1999 | Urlabs | Internet software | Not Dislosed | |
| 1998 | Binary Research | Disk cloning technology | $27,500,000 | |
| 1998 | Eastman Software-Storage Mgmt | Storage migration technology | $10,000,000 | |
| 1998 | Intel Corp-Anti Virus Business | Anti-virus software | Not Dislosed | |
| 1996 | Fast Track | Open network design | $7,462,500 | |
| 1995 | Delrina | Software | $378,080,000 | |
| 1995 | Sytron | Computer peripheral | Not Dislosed | |
| 1994 | Central Point Software | Utility software | $62,960,000 | |
| 1994 | Intec Systems | Mobile computing | $1,610,000 | |
| 1994 | Quest Development | Data management software | Not Dislosed | |
| 1994 | SLR Systems | Software | $2,300,000 | |
| 1993 | Contact Software International | Management software | $47,000,000 | |
| 1993 | DataEase Intl Inc-Cert Tech | Software | $8,180,000 | |
| 1993 | Fifth Generation Systems | Utilities software | $43,250,000 | |
| 1993 | NetDistributor | Software | Not Dislosed | |
| 1993 | Trik | Management software | Not Dislosed | |
| 1992 | Certus International | Anti-virus software | $3,260,000 | |
| 1992 | Dynamic Microprocessor Associates | Software | $21,800,000 | |
| 1992 | MultiScope | Debugging software | $6,765,000 | |
| 1992 | Symantec UK | Wholesale software | $26,200,000 | |
| 1992 | Whitewater Group | Programming tools | $3,280,000 | |
| 1991 | Leonard Development Group | Computer programming | Not Dislosed | |
| 1991 | Zortech International | Thermal insulation | $12,100,000 | |
| 1990 | Peter Norton Computing | Computer software | $70,000,000 | |
| 1987 | Think Technologies | Software | Not Dislosed | |
| 1984 | C&E Software | Software | Not Dislosed | |