| November 2021 | Valeo Networks acquired On Time TechManaged service provider | MSSP, Managed security services | Undisclosed | Report on Valeo Networks buying On Time Tech, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Team Cymru acquired AmplicyProvides threat surface management | ASM, Attack surface management | Undisclosed | Report on Team Cymru buying Amplicy, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Sift acquired KeylessProvides passwordless and multi-factor authentication | MFA, MFA and passwordless authentication | Undisclosed | Report on Sift buying Keyless, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Sesa acquired DatefDelivers cloud and security help such as finding and answering threats | MDR, Managed detection and response | Undisclosed | Report on Sesa buying Datef, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | SecureAuth acquired AccepttoProvides risk-based continuous authentication platform | MFA, MFA and passwordless authentication | Undisclosed | Report on SecureAuth buying Acceptto, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Schwarz Group acquired XM CyberXM Cyber provides a platform for continuous exposure management across hybrid environments. | ASM, Attack surface management | $700m | Report on Schwarz Group buying XM Cyber, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Recovery Point Systems acquired GeminareKeeps firms running when systems fail, protecting information and restoring operations | Backup, Backup and cyber recovery | Undisclosed | Report on Recovery Point Systems buying Geminare, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Outpost24 acquired SpecopsOffers tools for managing passwords and checking who users are | Password managers | Undisclosed | Report on Outpost24 buying Specops, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Open Text Corporation acquired ZixEmail security company | Email security | $860m | Report on Open Text Corporation buying Zix, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Open Text Corporation acquired BricataNetwork detection and response firm | NDR, Network detection and response | Undisclosed | Report on Open Text Corporation buying Bricata, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Meriplex acquired Optimum NetworkingProvides managed IT and cybersecurity services | MSSP, Managed security services | Undisclosed | Report on Meriplex buying Optimum Networking, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | ManTech acquired Gryphon Technologies | | $350m | Report on ManTech buying Gryphon Technologies, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Lacework acquired SolubleCloud infrastructure management firm specialising in infrastructure as code | CNAPP, Cloud security (CNAPP and CSPM) | Undisclosed | Report on Lacework buying Soluble, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Kerv acquired GyrocomNetwork and security integrator specialising in SD-WAN, managed networks and SASE | SASE, SASE and SSE | Undisclosed | Report on Kerv buying Gyrocom, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Immersive Labs acquired Snap LabsCreates spaces for cyber training, study and showing tools | Awareness training, Security awareness and human risk | Undisclosed | Report on Immersive Labs buying Snap Labs, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | IK Partners acquired TruesecProvides cybersecurity services including risk assessments, penetration testing and threat detection | MSSP, Managed security services | Undisclosed | Report on IK Partners buying Truesec, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Ideagen acquired CompliSpaceProvides governance, risk, compliance and policy management software for education and social care | GRC, GRC and compliance automation | $76m | Report on Ideagen buying CompliSpace, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Ideagen acquired CompliancePath | GRC, GRC and compliance automation | $12m | Report on Ideagen buying CompliancePath, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | IBM acquired ReaQtaDevelops autonomous threat detection and response technology | EDR, EDR and XDR | Undisclosed | Report on IBM buying ReaQta, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | General Informatics acquired Versiant | | Undisclosed | Report on General Informatics buying Versiant, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | GBG acquired AcuantProvides trusted identity products and identity verification | Fraud prevention, Fraud and payment fraud prevention | $736m | Report on GBG buying Acuant, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Entreda acquired PrivvaSpecialises in enterprise risk management | TPRM, Third-party risk and security ratings | Undisclosed | Report on Entreda buying Privva, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | DomainTools acquired Farsight SecuritySpecialises in DNS-based threat intelligence | Threat intel, Threat intelligence | Undisclosed | Report on DomainTools buying Farsight Security, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | DNV acquired Applied RiskIndustrial cybersecurity company | OT security, OT and ICS security | Undisclosed | Report on DNV buying Applied Risk, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | CrowdStrike acquired SecureCircleProvides SaaS service extending zero trust security to endpoint data | DLP, Data loss prevention | Undisclosed | Report on CrowdStrike buying SecureCircle, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Coinbase acquired Unbound SecurityIsraeli startup protecting cryptographic keys and credentials | Encryption, Encryption and key management | $150m | Report on Coinbase buying Unbound Security, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Clearlake Capital acquired Quest SoftwareMakes software for security, data insight and running IT | | $5.4bn | Report on Clearlake Capital buying Quest Software, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Cipherpoint acquired Virtual Information Technology Pty Limited (VIT Cyber Security)Australian provider of managed IT and security solutions | MSSP, Managed security services | $1m | Report on Cipherpoint buying Virtual Information Technology Pty Limited (VIT Cyber Security), November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Cerberus Sentinel acquired Atlantic Technology Systems | | Undisclosed | Report on Cerberus Sentinel buying Atlantic Technology Systems, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Celsius Network acquired GK8Israeli blockchain cybersecurity firm protecting financial institutions' digital assets | Encryption, Encryption and key management | $115m | Report on Celsius Network buying GK8, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Celcom Axiata Berhad acquired BridgenetMalaysian provider of IT and managed security services | MSSP, Managed security services | Undisclosed | Report on Celcom Axiata Berhad buying Bridgenet, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Cegeka acquired SecurITIdentity and access management specialist based in Amsterdam | IAM, Identity and access management | Undisclosed | Report on Cegeka buying SecurIT, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | Buchanan & Edwards acquired RenXTechProvides cybersecurity and technical analysis services to the US government | MSSP, Managed security services | Undisclosed | Report on Buchanan & Edwards buying RenXTech, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2021 | BlueHalo acquired AsymmetrikTechnology and analytics firm providing cybersecurity to government organisations | Consulting, Security consulting and vCISO | Undisclosed | Report on BlueHalo buying Asymmetrik, November 2021 (opens in a new tab) |
| November 2021 | Appsian Security acquired Q SoftwareSpecialises in security and compliance for JD Edwards and Oracle ERP systems | GRC, GRC and compliance automation | Undisclosed | Report on Appsian Security buying Q Software, November 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2021 | Xperience acquired Green DuckCloud and cybersecurity company with services focused on assessment | Consulting, Security consulting and vCISO | Undisclosed | Report on Xperience buying Green Duck, October 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2021 | WidePoint acquired IT AuthoritiesManaged service provider, managed security service provider and cloud service provider | MSSP, Managed security services | Undisclosed | Report on WidePoint buying IT Authorities, October 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2021 | TransUnion acquired SontiqProvides identity security and identity monitoring products using credit data | ITDR, Identity threat detection and response | $638m | Report on TransUnion buying Sontiq, October 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2021 | Tetra Tech acquired Enterprise AutomationAdvises on and builds factory control and automation systems | OT security, OT and ICS security | Undisclosed | Report on Tetra Tech buying Enterprise Automation, October 2021 (opens in a new tab) |
| October 2021 | SystemLabs acquired RedCoinCybersecurity firm offering security services and products | MSSP, Managed security services | Undisclosed | Report on SystemLabs buying RedCoin, October 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2021 | Sysnet Global Solutions acquired TrustwaveSpecialises in PCI compliance for payment card industry standards | GRC, GRC and compliance automation | $80m | Report on Sysnet Global Solutions buying Trustwave, October 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2021 | SUSE acquired NeuVectorMakes container security software for Kubernetes environments | CWPP, Cloud workload and container security | $130m | Report on SUSE buying NeuVector, October 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2021 | Summit Partners acquired Invicti SecuritySells application security testing software | AST, Application security testing | $625m | Report on Summit Partners buying Invicti Security, October 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2021 | Sollensys acquired CeleritIT services business serving the financial sector since 1985 | | Undisclosed | Report on Sollensys buying Celerit, October 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2021 | Sollensys acquired Abstract MediaAugmented and virtual reality company for corporate training experiences | | Undisclosed | Report on Sollensys buying Abstract Media, October 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2021 | Snyk acquired CloudSkiffFrench cloud security firm behind open source drift detection tool driftctl | CWPP, Cloud workload and container security | Undisclosed | Report on Snyk buying CloudSkiff, October 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2021 | SIA acquired Net StudioItalian company selling digital identity and access management | IAM, Identity and access management | Undisclosed | Report on SIA buying Net Studio, October 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2021 | Scanmarket acquired SymfactSoftware for managing contracts and supplier danger, using AI, aimed at lawyers | TPRM, Third-party risk and security ratings | Undisclosed | Report on Scanmarket buying Symfact, October 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2021 | RealDefense acquired STOPzillaCreates virus protection and speed-up tools for home users and small firms | EPP, Endpoint protection and antivirus | Undisclosed | Report on RealDefense buying STOPzilla, October 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2021 | Plurilock acquired CloudCodesIndia-based cloud security firm providing cloud security products | CNAPP, Cloud security (CNAPP and CSPM) | $1.7m | Report on Plurilock buying CloudCodes, October 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |