| Year | Company | Business | Value | |
|---|
| 2008 | DiviTech A/S | Digital service management | Not Dislosed | |
| 2008 | Jabber | Presence | Not Dislosed | |
| 2008 | Nuova Systems, Inc. | Computer networking | $678,000,000 | |
| 2008 | PostPath | Email | $215,000,000 | |
| 2008 | Pure Networks | Computer software | $120,000,000 | |
| 2007 | BroadWare Technologies | Surveillance | Not Dislosed | |
| 2007 | Cognio | Mobile software | Not Dislosed | |
| 2007 | Five Across | Social networking service | Not Dislosed | |
| 2007 | Ironport | Computer security | $830,000,000 | |
| 2007 | Latigent | Business performance management | Not Dislosed | |
| 2007 | Navini Networks | Wireless LAN | $330,000,000 | |
| 2007 | NeoPath | Data storage | Not Dislosed | |
| 2007 | Reactivity | Web services | $135,000,000 | |
| 2007 | Securent | Digital rights management | $100,000,000 | |
| 2007 | SpansLogic | Computer networking | Not Dislosed | |
| 2007 | Utah Street Networks | Social networking service | Not Dislosed | |
| 2007 | WebEx | Web conferencing | $3,200,000,000 | |
| 2006 | Arroyo Video Solutions | Video on demand | $92,000,000 | |
| 2006 | Ashley Laurent | Gateways | Not Dislosed | |
| 2006 | Audium | Voice over Internet Protocol | $19,800,000 | |
| 2006 | Greenfield Networks | Semiconductors | Not Dislosed | |
| 2006 | Meetinghouse | Computer security | $43,700,000 | |
| 2006 | Metreos | Voice over Internet Protocol | $28,000,000 | |
| 2006 | Orative | Mobile software | $31,000,000 | |
| 2006 | SyPixx Networks | Surveillance | $51,000,000 | |
| 2006 | Tivella | Digital signage / IPTV | Not Dislosed | |
| 2005 | Airespace | Wireless LAN | $450,000,000 | |
| 2005 | Cybertrust | Information gathering | $14,000,000 | |
| 2005 | FineGround Networks | Network security | $70,000,000 | |
| 2005 | KISS Technology | Entertainment technology | $61,000,000 | |
| 2005 | M.I. Secure Corporation | Virtual private networks | $13,000,000 | |
| 2005 | Nemo Systems | Computer networking | $12,500,000 | |
| 2005 | Netsift | Computer networking | $30,000,000 | |
| 2005 | Scientific-Atlanta | Digital cable | $6,900,000,000 | |
| 2005 | Sheer Networks | Service management | $97,000,000 | |
| 2005 | Sipura Technology | Voice over Internet Protocol | $68,000,000 | |
| 2005 | Topspin Communications | LAN switching | $250,000,000 | |
| 2005 | Vihana | Semiconductors | $30,000,000 | |
| 2004 | Actona Technologies | Data storage | $82,000,000 | |
| 2004 | BCN Systems | Routers | $34,000,000 | |
| 2004 | dynamicsoft | Communication software | $55,000,000 | |
| 2004 | Jahi Networks | Network management | $16,000,000 | |
| 2004 | NetSolve | Information technology | Not Dislosed | |
| 2004 | Parc Technologies | Routers | $9,000,000 | |
| 2004 | P-Cube | Service Delivery Platform | $200,000,000 | |
| 2004 | Perfigo | Computer networking | $74,000,000 | |
| 2004 | Procket Networks | Routers | $89,000,000 | |
| 2004 | Protego Networks | Network security | $65,000,000 | |
| 2004 | Riverhead Networks | Computer security | $39,000,000 | |
| 2004 | Twingo Systems | Computer security | $5,000,000 | |
| 2003 | Latitude Communications | Web conferencing | $80,000,000 | |
| 2003 | Linksys | Computer networking | $500,000,000 | |
| 2003 | Okena | Intrusion detection | $154,000,000 | |
| 2003 | SignalWorks | Echo cancellation | $13,500,000 | |
| 2002 | Andiamo Systems | Data storage | $2,500,000,000 | |
| 2002 | AYR Networks | Computer networking | $113,000,000 | |
| 2002 | Hammerhead Networking | Computer networking | $100,000,000 | |
| 2002 | Navarro Networks | Computer networking | $73,000,000 | |
| 2002 | Psionic Software | Intrusion detection | $12,000,000 | |
| 2001 | Allegro Systems | Virtual private networks | $181,000,000 | |
| 2000 | Active Voice | Communication software | $266,000,000 | |
| 2000 | Alantech Technologies | Network management | $180,000,000 | |
| 2000 | Altiga Networks | Virtual private networking | $250,000,000 | |
| 2000 | Arrowpoint Communications | LAN switching | $5,700,000,000 | |
| 2000 | AuroraNetics | Computer networking | $150,000,000 | |
| 2000 | CAIS Software | Integrated development environment | $170,000,000 | |
| 2000 | Compatible Systems | Virtual private networking | $317,000,000 | |
| 2000 | ExiO Communications | Wireless networking | $155,000,000 | |
| 2000 | Growth Networks | Chipsets | $355,000,000 | |
| 2000 | HyNEX | Internet access | $127,000,000 | |
| 2000 | infoGear Technology | Information management | $301,000,000 | |
| 2000 | IPCell Technologies | Voice over Internet Protocol | $200,000,000 | |
| 2000 | IPmobile | Mobile software | $425,000,000 | |
| 2000 | JetCell | Mobile telephones | $200,000,000 | |
| 2000 | Komodo Technology | Voice over Internet Protocol | $175,000,000 | |
| 2000 | Netiverse | LAN switching | $210,000,000 | |
| 2000 | NuSpeed Internet Systems | iSCSI | $450,000,000 | |
| 2000 | PentaCom | LAN switching | $118,000,000 | |
| 2000 | PixStream | Media player (application software) | $369,000,000 | |
| 2000 | Qeyton Systems | Wavelength-division multiplexing | $800,000,000 | |
| 2000 | Radiata | Wireless networking | $295,000,000 | |
| 2000 | Seagull Semiconductor | Computer networking | $19,000,000 | |
| 2000 | SightPath | Content delivery | $800,000,000 | |
| 2000 | Vovida Networks | Voice over Internet Protocol | $169,000,000 | |
| 1999 | Aironet Wireless Communications | Wireless LAN | $799,000,000 | |
| 1999 | Amteva Technologies | Voice over Internet Protocol | $170,000,000 | |
| 1999 | Calista | Private branch exchange | $55,000,000 | |
| 1999 | Cerent Corporation | Synchronous optical networking | $3,700,000,000 | |
| 1999 | Cocom | Cable modems | $65,600,000 | |
| 1999 | Fibex Systems | Digital loop carrier | $250,000,000 | |
| 1999 | GeoTel Communications | Voice over Internet Protocol | $2,000,000,000 | |
| 1999 | Internet Engineering Group | Synchronous optical networking | $25,000,000 | |
| 1999 | MaxComm Technologies | Voice over Internet Protocol | $143,000,000 | |
| 1999 | Monterey Networks | Synchronous optical networking | $3,700,000,000 | |
| 1999 | Pirelli Optical Systems | Fiber-optic communication | $2,150,000,000 | |
| 1999 | Sentient Networks | Voice over Internet Protocol | $195,000,000 | |
| 1999 | StratumOne Communications | Synchronous optical networking | $435,000,000 | |
| 1999 | Tasmania Network Systems | Web cache | $25,000,000 | |
| 1999 | TransMedia Communications | Gateways | $407,000,000 | |
| 1999 | V-Bits | Digital video | $128,000,000 | |