| May 2021 | Crossword Cybersecurity acquired Verifiable Credentials LimitedBuilds linking software for systems that prove identity claims | | $3.9m | Report on Crossword Cybersecurity buying Verifiable Credentials Limited, May 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| May 2021 | Cisco acquired Kenna SecurityA digital defence firm working on tools that track system weaknesses | Vulnerability management | Undisclosed | Report on Cisco buying Kenna Security, May 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| May 2021 | Centricus Acquisition Corp acquired Arqit LimitedDevelops quantum encryption technology to secure communications against all attacks | Encryption, Encryption and key management | Undisclosed | Report on Centricus Acquisition Corp buying Arqit Limited, May 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| May 2021 | Belcan acquired VICTOR42Gives public bodies and businesses tech, information and digital defence help | | Undisclosed | Report on Belcan buying VICTOR42, May 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| May 2021 | Ascend Technologies acquired Switchfast TechnologiesSpecialises in customised IT services, including cybersecurity services | MSSP, Managed security services | Undisclosed | Report on Ascend Technologies buying Switchfast Technologies, May 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| May 2021 | Aryaka acquired SecucloudGerman company that developed a SASE platform | SASE, SASE and SSE | Undisclosed | Report on Aryaka buying Secucloud, May 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| May 2021 | Acuant acquired Hello SodaA British firm giving identity checks and KYC tools | IAM, Identity and access management | Undisclosed | Report on Acuant buying Hello Soda, May 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| May 2021 | Accenture acquired LinkbynetFrench cloud services provider offering cloud optimisation, transformation and security services | Consulting, Security consulting and vCISO | Undisclosed | Report on Accenture buying Linkbynet, May 2021 (opens in a new tab) |
| May 2021 | Absolute Software acquired NetMotionSpecialises in secure access solutions | ZTNA, Zero trust network access | $340m | Report on Absolute Software buying NetMotion, May 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Zywave acquired EnquironRisk management and advice services for employers and insurers | | Undisclosed | Report on Zywave buying Enquiron, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Zscaler acquired TrustdomeCloud infrastructure entitlement management governing access across clouds and identities | CNAPP, Cloud security (CNAPP and CSPM) | Undisclosed | Report on Zscaler buying Trustdome, April 2021 (opens in a new tab)via Wikipedia (opens in a new tab) |
| April 2021 | WhiteSource acquired DiffendSupplies a threat detection tool built on open source | SCA, Software supply chain and SBOM | Undisclosed | Report on WhiteSource buying Diffend, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Thycotic acquired CentrifyPrivileged access management company | PAM, Privileged access management | Undisclosed | Report on Thycotic buying Centrify, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Thoma Bravo acquired ProofpointProofpoint provides cybersecurity solutions to protect people, data, and AI across email, cloud, and collaboration tools. | Email security | $12.3bn | Report on Thoma Bravo buying Proofpoint, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | StrikeForce Technologies acquired Cybersecurity Risk SolutionsGives cyber, privacy and data protection tools for homes and firms | | Undisclosed | Report on StrikeForce Technologies buying Cybersecurity Risk Solutions, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | rhipe acquired emt DistributionDistributor of cybersecurity solutions | | Undisclosed | Report on rhipe buying emt Distribution, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Rapid7 acquired VelociraptorOpen source endpoint monitoring, forensics and incident response tech | IR, Incident response | Undisclosed | Report on Rapid7 buying Velociraptor, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Performanta acquired Identity ExpertsProvides identity and access management solutions | IAM, Identity and access management | Undisclosed | Report on Performanta buying Identity Experts, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | OneTrust acquired ConvercentEthics and compliance software for governance and risk management | GRC, GRC and compliance automation | Undisclosed | Report on OneTrust buying Convercent, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Netsurit acquired Cyber CityCloud services and cybersecurity managed service provider | MSSP, Managed security services | Undisclosed | Report on Netsurit buying Cyber City, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | McNally Capital acquired Orbis OperationsProvides physical and cyber security and intelligence services | Consulting, Security consulting and vCISO | Undisclosed | Report on McNally Capital buying Orbis Operations, April 2021 (opens in a new tab) |
| April 2021 | Mastercard acquired EkataProvides digital identity verification | IGA, Identity governance and administration | $850m | Report on Mastercard buying Ekata, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Logicalis acquired ÁudeaSpecialises in cybersecurity and regulatory compliance | GRC, GRC and compliance automation | Undisclosed | Report on Logicalis buying Áudea, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Keyfactor acquired PrimeKeyProvides PKI and signing solutions | Encryption, Encryption and key management | Undisclosed | Report on Keyfactor buying PrimeKey, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Information Analysis Incorporated acquired TellengerDelivers security, cloud computing and data analysis work | MSSP, Managed security services | Undisclosed | Report on Information Analysis Incorporated buying Tellenger, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Fifosys acquired Enforce TechnologyOffers cybersecurity and cloud solutions | MSSP, Managed security services | Undisclosed | Report on Fifosys buying Enforce Technology, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Everbridge acquired xMattersProvides incident response and management services | IR, Incident response | $240m | Report on Everbridge buying xMatters, April 2021 (opens in a new tab) |
| April 2021 | Entrust acquired WorldReachChecks identities and papers for state bodies and travel firms | IGA, Identity governance and administration | Undisclosed | Report on Entrust buying WorldReach, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | ENSCO acquired ExostrategiesProvides enterprise architecture and risk management for space and intelligence communities | | Undisclosed | Report on ENSCO buying Exostrategies, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Dynamic Quest acquired Integrated SolutionsRuns company tech, digital defence and recovery from disasters for clients | MSSP, Managed security services | Undisclosed | Report on Dynamic Quest buying Integrated Solutions, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Cofense acquired CyberfishEmploys machine learning to stop fake messages and dodgy sites | Email security | Undisclosed | Report on Cofense buying Cyberfish, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Coalfire acquired Neuralys CorporationA web tool for organising tests that probe system weaknesses | Pen testing, Penetration testing | Undisclosed | Report on Coalfire buying Neuralys Corporation, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Cellebrite acquired TWC Tech Holdings II Corporation | | Undisclosed | Report on Cellebrite buying TWC Tech Holdings II Corporation, April 2021 (opens in a new tab)via Wikipedia (opens in a new tab) |
| April 2021 | Boxphish acquired PurplephishCyber awareness and training company based in the United Kingdom | Awareness training, Security awareness and human risk | Undisclosed | Report on Boxphish buying Purplephish, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Atos acquired cryptovisionMakes cryptographic goods and services that protect digital identities | Encryption, Encryption and key management | Undisclosed | Report on Atos buying cryptovision, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Altron acquired LawtrustSupplies digital trust and cyber security offerings | | Undisclosed | Report on Altron buying Lawtrust, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | AdEPT acquired Datrix | | $12.5m | Report on AdEPT buying Datrix, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | Accenture acquired OpenmindedOffers advice, cloud protection, defence and managed security work | MSSP, Managed security services | Undisclosed | Report on Accenture buying Openminded, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2021 | 1Password acquired SecretHubSpecialises in secrets management solutions for enterprises | Secrets management | Undisclosed | Report on 1Password buying SecretHub, April 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Wipro acquired Ampion | Consulting, Security consulting and vCISO | Undisclosed | Report on Wipro buying Ampion, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | VMware acquired Mesh7Provides cloud-native API security technology for applications | API security | Undisclosed | Report on VMware buying Mesh7, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | VENZA acquired CyberTekSupplies complete digital defence and outsourced tech support | | Undisclosed | Report on VENZA buying CyberTek, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Trust Stamp acquired PixelPinLets people reach their accounts using a picture | MFA, MFA and passwordless authentication | Undisclosed | Report on Trust Stamp buying PixelPin, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | TPG Capital acquired ThycoticProvides privileged access management solutions | PAM, Privileged access management | Undisclosed | Report on TPG Capital buying Thycotic, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | TiG acquired ThirdSpaceProvides professional services for Microsoft identity and cybersecurity solutions | Consulting, Security consulting and vCISO | Undisclosed | Report on TiG buying ThirdSpace, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Tesserent acquired Secure LogicProvides managed security services to government clients | MSSP, Managed security services | Undisclosed | Report on Tesserent buying Secure Logic, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Sumo Logic acquired DFLabsProvides security orchestration, automation and response tools | SOAR, SOAR and security automation | Undisclosed | Report on Sumo Logic buying DFLabs, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Sontiq acquired Breach ClarityProvides personalised breach risk intelligence technology | ITDR, Identity threat detection and response | Undisclosed | Report on Sontiq buying Breach Clarity, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | Sonatype acquired MuseDevAnalyses developer pull requests for security, performance and reliability bugs | AST, Application security testing | Undisclosed | Report on Sonatype buying MuseDev, March 2021 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2021 | SailPoint acquired ERP MaestroGives SaaS governance, risk and compliance tools with SoD monitoring | GRC, GRC and compliance automation | Undisclosed | Report on SailPoint buying ERP Maestro, March 2021 (opens in a new tab) |