Article · Wikipedia archive · Last revised May 29, 2026

List of acquisitions by Cisco

Cisco Systems, Inc., commonly known as Cisco, is an American computer networking company. Cisco made its first acquisition in 1993, which was followed by a series of further acquisitions.

Last revised
May 29, 2026
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≈ 33 min
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The Cisco Systems campus in San Jose source ↗

Cisco Systems, Inc., commonly known as Cisco, is an American computer networking company. Cisco made its first acquisition in 1993,1 which was followed by a series of further acquisitions.

Founded in 1984, Cisco did not acquire a company during the first seven years of its existence; but, on September 24, 1993, Cisco acquired Crescendo Communications, a LAN switching company.2 Following the first Cisco takeover purchase, acquisitions have constituted 50 percent of the company's business activity.2

The company's largest acquisition as of October 2023 is the purchase of Splunk—a software company that develops software for the analysis and monitoring of machine-generated dataUS$28 billion.3 Cisco's previous largest acquisition was tied between Cerent Corporation and Scientific Atlanta for $6.9 billion in 1999 and 2005 respectively.45

The majority of companies acquired by Cisco are based in the United States (U.S.) and a total of 149 companies had been acquired as of March 2011.6 Most of the companies acquired by Cisco are related to computer networking, with several LAN switching and Voice over Internet Protocol (VoIP) companies included in the list of acquisitions.6

List

Each acquisition is for the respective company in its entirety, unless otherwise specified, and the date of the agreement between Cisco Systems and the subject of the acquisition is listed. The value of each acquisition is listed in the US$ currency because Cisco Systems is headquartered in California, U.S.

The majority of its products and business units have come from acquisitions, with Cisco Systems spending more than $70 billion to acquire approximately 218 organizations as of October 2021.

Date Company Business Country Value (USD) References
September 24, 1993 Crescendo Communications LAN switching  United States $94,500,000 7
July 12, 1994 Newport Systems Solutions Router $95,000,000 8910
October 24, 1994 Kalpana LAN switching $204,000,000 11
December 8, 1994 LightStream ATM switching $120,000,000 12
August 10, 1995 Combinet Remote office routers $114,200,000 13
September 6, 1995 Internet Junction Gateway $5,500,000 14
October 27, 1995 Network Translation Firewalls $30,000,000 1516
November 6, 1995 Grand Junction Networks LAN switching $345,000,000 171819
January 23, 1996 TGV Software Internet software company $115,000,000 2021
Updated on ClearOS' web page: ClearOS Pedigree22
April 22, 1996 StrataCom ATM switching $4,000,000,000 2324
July 22, 1996 Telebit Modems $200,000,000 2526
August 6, 1996 Nashoba Networks LAN switching $100,000,000 2728
September 3, 1996 Granite Systems Computer networking $220,000,000 2930
October 14, 1996 Netsys Technologies Network simulation $79,000,000 3132
December 1996 Metaplex Computer networking  Australia 33
March 26, 1997 Telesend Broadband Internet access  United States 3435
June 9, 1997 Skystone Systems Synchronous optical networking  Canada $89,100,000 3637
June 24, 1997 Global Internet Software Group Firewall  United States $40,250,000 38
June 24, 1997 Ardent Communications Broadband Internet access $156,000,000 39
September 2, 1997 Integrated Network Digital subscriber line 40
December 22, 1997 LightSpeed International Voice over Internet Protocol $160,000,000 41
February 18, 1998 WheelGroup Computer security $124,000,000 4243
March 10, 1998 NetSpeed Broadband Internet access $236,000,000 44
March 11, 1998 Precept Software Internet television $84,000,000 45
May 4, 1998 CLASS Data Systems Computer networking $50,000,000 46
July 28, 1998 Summa Four LAN switching $116,000,000 47
August 21, 1998 American Internet Computer networking $56,000,000 48
September 15, 1998 Clarity Wireless Wireless networking $157,000,000 49
October 14, 1998 Selsius Systems Voice over Internet Protocol $145,000,000 50
December 2, 1998 Pipelinks Synchronous optical networking $126,000,000 51
April 8, 1999 Fibex Systems Digital loop carrier $250,000,000 5253
April 8, 1999 Sentient Networks Voice over Internet Protocol $195,000,000 52
April 13, 1999 GeoTel Communications $2,000,000,000 5
April 28, 1999 Amteva Technologies $170,000,000 5
June 17, 1999 TransMedia Communications Gateways $407,000,000 5
June 29, 1999 StratumOne Communications Synchronous optical networking $435,000,000 5
August 16, 1999 Calista Private branch exchange $55,000,000 5
August 18, 1999 MaxComm Technologies Voice over Internet Protocol $143,000,000 5
August 26, 1999 Monterey Networks Synchronous optical networking $500,000,000 5
August 26, 1999 Cerent $6,900,000,000 5
August 31, 1999 IBM Networking Hardware Division Computer networking $2,000,000,000 54
September 15, 1999 COCOM A/S Cable modems  Denmark $65,600,000 5
September 22, 1999 Webline Communications Contact management  United States $325,000,000 55
October 26, 1999 Tasmania Network Systems Web cache $25,000,000 5
November 9, 1999 Aironet Wireless Communications Wireless LAN $799,000,000 5
November 11, 1999 V-Bits Digital video $128,000,000 5
December 16, 1999 Worldwide Data Systems Information technology consulting $25,500,000 5
December 17, 1999 Internet Engineering Group (IEng) High performance routing software $25,000,000 56
December 20, 1999 Pirelli Optical Systems Fiber-optic communication  Italy $2,150,000,000 57
January 19, 2000 Compatible Systems Virtual private networking  United States $317,000,000 5859
January 19, 2000 Altiga Networks $250,000,000 5859
February 16, 2000 Growth Networks Chipsets $355,000,000 60
March 1, 2000 Atlantech Technologies Network management  United Kingdom $180,000,000 61
March 16, 2000 JetCell Mobile telephones  United States $200,000,000 62
March 16, 2000 infoGear Technology Information management $301,000,000 63
March 29, 2000 SightPath Content delivery $800,000,000 64
April 11, 2000 PentaCom LAN switching  Israel $118,000,000 65
April 12, 2000 Seagull Semiconductor Computer networking $19,000,000 66
May 5, 2000 Arrowpoint Communications LAN switching  United States $5,700,000,000 67
May 12, 2000 Qeyton Systems Wavelength-division multiplexing  Sweden $800,000,000 68
June 5, 2000 HyNEX Internet access  Israel $127,000,000 69
July 7, 2000 Netiverse LAN switching  United States $210,000,000 70
2001 AuroraNetics Computer networking $150,000,000 71
July 25, 2000 Komodo Technology Voice over Internet Protocol $175,000,000 72
July 27, 2000 NuSpeed Internet Systems iSCSI $450,000,000 73
August 1, 2000 IPmobile Mobile software $425,000,000 74
August 31, 2000 PixStream Media player (application software) $369,000,000 75
September 28, 2000 IPCell Technologies Voice over Internet Protocol $200,000,000 76
September 28, 2000 Vovida Networks $169,000,000 76
October 20, 2000 CAIS Software Integrated development environment $170,000,000 77
November 10, 2000 Active Voice Communication software $266,000,000 78
November 13, 2000 Radiata Wireless networking  Australia $295,000,000 79
December 14, 2000 ExiO Communications  United States $155,000,000 80
July 27, 2001 Allegro Systems Virtual private networks $181,000,000 81
May 1, 2002 Hammerhead Networks Computer networking $173,000,000 82
May 1, 2002 Navarro Networks $85,000,000 82
July 25, 2002 AYR Networks $113,000,000 83
August 20, 2002 Andiamo Systems Data storage $2,500,000,000 84
October 22, 2002 Psionic Software Intrusion detection $12,000,000 85
January 24, 2003 Okena $154,000,000 86
March 19, 2003 SignalWorks Echo cancellation $13,500,000 87
March 20, 2003 Linksys Computer networking $500,000,000 88
November 12, 2003 Latitude Communications Web conferencing $80,000,000 89
March 12, 2004 Twingo Systems Computer security $5,000,000 90
March 22, 2004 Riverhead Networks $39,000,000 91
June 17, 2004 Procket Networks Routers $89,000,000 92
June 29, 2004 Actona Technologies Data storage $82,000,000 93
July 8, 2004 Parc Technologies Routers  United Kingdom $9,000,000 94
August 23, 2004 P-Cube Service Delivery Platform  Israel $200,000,000 95
September 9, 2004 NetSolve Information technology  United States $128,500,000 9697
September 13, 2004 dynamicsoft Communication software $55,000,000 9899
October 21, 2004 Perfigo Computer networking $74,000,000 100
November 17, 2004 Jahi Networks Network management $16,000,000 101
December 9, 2004 BCN Systems Routers $34,000,000 102
December 20, 2004 Protego Networks Network security $65,000,000 103
January 12, 2005 Airespace Wireless LAN $450,000,000 104105
April 14, 2005 Topspin Communications LAN switching $250,000,000 106107
April 26, 2005 Sipura Technology Voice over Internet Protocol $68,000,000 108109
May 23, 2005 Vihana Semiconductors $30,000,000 110111
May 26, 2005 FineGround Networks Network security $70,000,000 112113
June 14, 2005 M.I. Secure Corporation Virtual private networks $13,000,000 114
June 27, 2005 Netsift Computer networking $30,000,000 115
July 22, 2005 KISS Technology Entertainment technology  Denmark $61,000,000 116
July 26, 2005 Sheer Networks Service management  United States $97,000,000 117
September 30, 2005 Nemo Systems Computer networking $12,500,000 118
November 18, 2005 Scientific Atlanta Digital cable $6,900,000,000 119
November 29, 2005 Cybertrust Information gathering $14,000,000 120
March 7, 2006 SyPixx Networks Surveillance $51,000,000 121
June 8, 2006 Metreos Voice over Internet Protocol $28,000,000 122
June 8, 2006 Audium $19,800,000 122
July 6, 2006 Meetinghouse Computer security $43,700,000 123124
August 21, 2006 Arroyo Video Solutions Video on demand $92,000,000 125126
October 10, 2006 Ashley Laurent Gateways 127
October 25, 2006 Orative Mobile software $31,000,000 128
November 13, 2006 Greenfield Networks Semiconductors 129
December 15, 2006 Tivella Digital signage / IPTV 130
January 4, 2007 IronPort Computer security $830,000,000 131132
February 9, 2007 Five Across Social networking service 133134
February 21, 2007 Reactivity Web services $135,000,000 135136
March 5, 2007 Utah Street Networks Social networking service 137138
March 13, 2007 NeoPath Data storage 139140
March 15, 2007 WebEx Web conferencing $3,200,000,000 141142
March 28, 2007 SpansLogic Computer networking 143144
May 21, 2007 BroadWare Technologies Surveillance 145146
September 18, 2007 Cognio Mobile software 147148
September 27, 2007 Latigent Business performance management 149150
October 23, 2007 Navini Networks WiMAX $330,000,000 151152
November 1, 2007 Securent Digital rights management $100,000,000 153154
April 8, 2008 Nuova Systems, Inc. Computer networking $678,000,000 155
June 10, 2008 DiviTech A/S Digital service management  Denmark 156
July 23, 2008 Pure Networks, Inc. Computer software  United States $120,000,000 157
August 27, 2008 PostPath Email $215,000,000 158
September 19, 2008 Jabber, Inc. Presence 159
January 27, 2009 Richards-Zeta Building Intelligence Building management systems 160
March 19, 2009 Pure Digital Technologies Digital video $590,000,000 161162
May 1, 2009 Tidal Software Job scheduling $105,000,000 163
October 27, 2009 ScanSafe SaaS Web Security Provider  United Kingdom $183,000,000 164165
November 2, 2009 Set-top box business of DVN Cable  China 166
December 18, 2009 Starent Networks System Architecture Evolution  United States $2,900,000,000 167
April 18, 2010 Tandberg Videoconferencing  Norway $3,300,000,000 168
May 18, 2010 MOTO Development Group Product design  United States 169
May 20, 2010 CoreOptics Digital signal processing 170
August 26, 2010 ExtendMedia Video 171
September 2, 2010 Arch Rock Corporation Smart Grid 172
December 1, 2010 LineSider Technologies Network Management Software 173
January 26, 2011 Pari Networks Network Configuration and Change Management (NCCM) 174
February 4, 2011 Inlet Technologies Adaptive Bit Rate (ABR) digital media processing platforms $95,000,000 175
March 29, 2011 newScale Inc. [Cisco Intelligent Automation for Cloud] 176
August 21, 2011 AXIOSS Software and Talent IT Service Management Software  Finland $31,000,000 177178
August 29, 2011 Versly Integrated Software  United States 179180
October 20, 2011 BNI Video Video $99,000,000 181182
March 15, 2012 NDS Group Conditional Access  United Kingdom $5,000,000,000 183
March 19, 2012 Lightwire Silicon Photonics  United States $271,000,000
July 16, 2012 Virtuata Software Security 184
November 15, 2012 Cloupia Cloud Services $125,000,000 185
November 19, 2012 Meraki Wired and Wireless Cloud Networking $1,200,000,000 186
November 29, 2012 Cariden Network planning, design and traffic management solutions for telecommunications service providers $141,000,000 187
January 23, 2013 Intucell Mobile Software  Israel $475,000,000 188
January 29, 2013 Cognitive Security Cyber Threat Protection  Czech Republic 189
March 25, 2013 SolveDirect Cloud services  Austria $21,194,000 190
April 3, 2013 Ubiquisys Mobile software  United Kingdom $310,000,000 191
May 29, 2013 JouleX Energy Management  United States $107,000,000 192
July 30, 2013 Composite Software Data Virtualization $180,000,000 193
July 23, 2013 Sourcefire Computer Security $2,700,000,000 194195
August 30, 2013 BroadHop Leading provider of next generation policy control and service management for carrier networks worldwide.
September 10, 2013 Whiptail Scalable solid state memory system provider $415,000,000 196197
December 10, 2013 Insieme Application-centric data center infrastructure 198
December 17, 2013 Collaborate.com Mobile collaboration and cloud computing 199
February 2014 Tetration Analytics Data Center Analytics and Security Solution
June 16, 2014 ThreatGRID Unified malware analysis and threat intelligence 200
June 27, 2014 Assemblage Cloud collaboration software  Denmark 201
July 9, 2014 Tail-f Systems Network service orchestration solutions  Sweden 202
July 27, 2014 Metacloud Deploys and operates private clouds for global organizations with a unique OpenStack-as-a-Service model  United States 203
May 29, 2015 Tropo Provides development platform for real time communications 204
December 10, 2014 Neohapsis Security Consulting 205
April 13, 2015 Embrane Application-centric network services including firewalls (FW), virtual private networks (VPNs), load balancers (LB) and SSL offload engines 206
June 12, 2015 Piston Cloud Computing Provides software that enables streamlined operational deployment of large scale distributed systems 207
June 30, 2015 OpenDNS Cloud-delivered enterprise security service $635,000,000 208
July 7, 2015 MaintenanceNet Provides a cloud-based software platform that uses data analytics and automation to manage and scale attach and renewals of recurring customer contracts. $139,000,000 209
October 12, 2015 Pawaa Provides secure on-premise and cloud-based file sharing software.  India
October 25, 2015 1 Mainstream Offers a cloud-based video platform designed to quickly launch live and on-demand OTT video services to a variety of connected devices  United States 210
November 3, 2015 ParStream Realtime Edge Analytics Database for IoT  Germany 211
November 20, 2015 Acano Acano provides collaboration infrastructure and conferencing software  United Kingdom $700,000,000 212
December 22, 2015 Lancope Enhances Cisco's Security Everywhere strategy.  United States $452,500,000 213
February 3, 2016 Jasper Technologies Developers of an Internet of Things cloud platform $1,400,000,000 214
March 1, 2016 CliQr Technologies Application defined cloud orchestration platform $260,000,000 215
March 2, 2016 Leaba Semiconductor Fabless Semiconductor  Israel $320,000,000 216
June 28, 2016 CloudLock Cloud-Security Provider  United States $293,000,000 217
October 17, 2016 Heroik Labs, Inc / Worklife Meeting productivity
January 24, 2017 AppDynamics Application Performance Management $3,700,000,000 218
May 1, 2017 Viptela Inc. Software-defined WAN $610,000,000 219
May 11, 2017 MindMeld Inc. Conversational Artificial Intelligence $125,000,000 220
July 31, 2017 Observable Networks, Inc. Cloud-Security Provider 221
September 22, 2017 Springpath Inc Hyper-converged Data Platform $320,000,000 222
October 19, 2017 Perspica, Inc. Machine Learning 223
October 25, 2017 BroadSoft Cloud Collaboration and Contact Center Platform $1,900,000,000 224
December 21, 2017 Cmpute.io (47Line Technologies) software solution to analyze cloud-deployed workloads and consumption patterns for cost-optimization strategies India 225
February 9, 2018 Skyport Systems Cloud managed secure edge compute server platform  United States 226
May 1, 2018 Accompany Develops a relationship intelligence platform and has built one of the richest databases of decision makers in the world  United States 227
June 19, 2018 July Systems Cloud-based mobile experience and location services 228
November 21, 2018 Ensoft Ltd Software solutions for service provider networks United Kingdom 229
August 2, 2018 Duo Security Cloud-based access security, identity management, and multi-factor authentication (MFA) services  United States $2,350,000,000 230
December 18, 2018 Luxtera Privately held semiconductor company 231
December 18, 2018 Singularity Networks Network Analytics Company 232
June 6, 2019 Sentryo Cybersecurity for the Industrial Internet  France 233
July 9, 2019 Acacia Communications Optical Interconnects  United States $2,600,000,000 234
August 6, 2019 Voicea Meeting transcription, voice search, and meeting highlights/action items
April 6, 2020 Fluidmesh Networks Wireless mesh networks  Italy 235
May 28, 2020 ThousandEyes Cloud & Internet Intelligence for Enterprises and Service Providers  United States $1,000,000,000 236
July 31, 2020 Modcam Video analytics  Sweden 237
September 30, 2020 BabbleLabs Computer audio background noise reduction software  United States 238
October 1, 2020 Portshift Computer application security solutions  Israel 239
November 16, 2020 Banzai Cloud Secure cloud-native application deployment  Hungary 240
February 19, 2021 IMImobile Cloud communications software  United Kingdom $730,000,000 241
June 22, 2021 Sedona Systems Cross-Domain Network Controller  Israel 242
June 30, 2021 Kenna Security Risk-based Vulnerability Management  United States 243
July 8, 2021 Socio Labs Event technology platform 244
September 28, 2022 Syrmia Networks Embedded System Software  Serbia 245
February 24, 2023 Valtix Cloud network security  United States 246
March 29, 2023 Lightspin Cloud security  Israel 247
April 30, 2023 Smartlook User analytics  Czech Republic 248
May 31, 2023 Armorblox AI-powered threat detection  United States 249
June 21, 2023 Accedian High Performance Service Assurance  Canada 250
August 31, 2023 Oort Identity security and management  United States 251
September 21, 2023 Splunk Data analysis platform for real-time cybersecurity, full-stack observability, and machine learning telemetry $28,000,000,000 3
December 21, 2023 Isovalent Cloud Networking and Security 252
August 8, 2024 DeepFactor Cloud-native application security company 253
August 26, 2024 Robust Intelligence AI Security 254
October 3, 2024 Deeper Insights AI Ltd Deeper Insights helps organizations design, build, and implement AI solutions and services for enterprise use cases United Kingdom 255
December 16, 2024 SnapAttack Threat detection and engineering platform  United States 256
August 25, 2025 Aura Asset Intelligence Cyber Asset Attack Surface Management  Canada 257
November 13, 2024 NeuralFabric AI training platform  United States 258
November 14, 2024 EzDubs, Inc. Real time AI speech translation 259
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External links