| December 2025 | Broadwing Capital acquired CloudScale365Managed IT, cloud, hosting and security solutions for smaller businesses | MSSP, Managed security services | Undisclosed | Report on Broadwing Capital buying CloudScale365, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | BigBear.ai acquired Ask SageGenerative AI platform for secure deployment in regulated environments | AI security, AI and LLM security | Undisclosed | Report on BigBear.ai buying Ask Sage, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | Bastion acquired Phronesis SecurityProvides cyber security audit, assurance and technical assessment services | Consulting, Security consulting and vCISO | Undisclosed | Report on Bastion buying Phronesis Security, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | Arteris acquired CycuitySemiconductor cybersecurity assurance specialist | IoT security, IoT, embedded and product security | Undisclosed | Report on Arteris buying Cycuity, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | Aretum acquired Veterans EngineeringSupplies government bodies with digital and cloud protection skills | Consulting, Security consulting and vCISO | Undisclosed | Report on Aretum buying Veterans Engineering, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | Akamai Technologies acquired FermyonFunction as a service company, not described in the source | | Undisclosed | Report on Akamai Technologies buying Fermyon, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Zscaler acquired SPLXProvides AI security tools including asset discovery and automated red teaming | AI security, AI and LLM security | Undisclosed | Report on Zscaler buying SPLX, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Yokogawa acquired IntellisyncProvides cybersecurity as a service with a 24/7 security operations centre | MSSP, Managed security services | Undisclosed | Report on Yokogawa buying Intellisync, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Xantaro Group acquired AnykeyGerman IT system house offering IT infrastructure and security expertise | | Undisclosed | Report on Xantaro Group buying Anykey, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | WALLIX acquired MalizenAnalyses user behaviour with AI to detect anomalies and cyber risks | ITDR, Identity threat detection and response | Undisclosed | Report on WALLIX buying Malizen, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | SSL.com acquired VikingCloudSells digital certificates as part of a cybersecurity and compliance business | Encryption, Encryption and key management | Undisclosed | Report on SSL.com buying VikingCloud, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | SEK (Security Ecosystem Knowledge) acquired NetbrIdentity and access management provider serving Brazilian banks and telecoms | IAM, Identity and access management | Undisclosed | Report on SEK (Security Ecosystem Knowledge) buying Netbr, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | SAFE acquired BalbixSpecialises in continuous threat exposure management | ASM, Attack surface management | Undisclosed | Report on SAFE buying Balbix, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Saepio acquired RupturaOffensive security specialist providing penetration testing services | Pen testing, Penetration testing | Undisclosed | Report on Saepio buying Ruptura, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | RKON Technologies acquired ScaleSecImplements and enhances cloud security capabilities across major cloud platforms | CNAPP, Cloud security (CNAPP and CSPM) | Undisclosed | Report on RKON Technologies buying ScaleSec, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Redsquid acquired CyberseerUK security operations centre provider with 24/7 managed detection and response | MDR, Managed detection and response | Undisclosed | Report on Redsquid buying Cyberseer, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Pentera acquired EVA Information SecurityOffensive security firm doing AI red teaming and penetration testing | Pen testing, Penetration testing | Undisclosed | Report on Pentera buying EVA Information Security, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Omega Systems acquired PEAKE Technology Partners | | Undisclosed | Report on Omega Systems buying PEAKE Technology Partners, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | MorganFranklin Cyber acquired Lynx Technology PartnersProvides cybersecurity and risk management services to organisations | GRC, GRC and compliance automation | Undisclosed | Report on MorganFranklin Cyber buying Lynx Technology Partners, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Meditology Services acquired CORL | TPRM, Third-party risk and security ratings | Undisclosed | Report on Meditology Services buying CORL, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | McAfee acquired MineOSConsumer privacy app that protects personal data | DLP, Data loss prevention | Undisclosed | Report on McAfee buying MineOS, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Markon acquired PLEXProvides cybersecurity, AI and secure enterprise engineering services | MSSP, Managed security services | Undisclosed | Report on Markon buying PLEX, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Huntress acquired Inside AgentFinds threats and rogue staff inside Microsoft 365 automatically | ITDR, Identity threat detection and response | Undisclosed | Report on Huntress buying Inside Agent, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Hexaware acquired CyberSolveSpecialist in identity and access management solutions and large identity programmes | IAM, Identity and access management | Undisclosed | Report on Hexaware buying CyberSolve, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Harbor IT acquired New England Network SolutionsManaged service provider with cybersecurity and compliance expertise for healthcare and life sciences | MSSP, Managed security services | Undisclosed | Report on Harbor IT buying New England Network Solutions, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Entag acquired Rubicon 8Provides cloud networking, cybersecurity and endpoint services to Australian organisations | MSSP, Managed security services | Undisclosed | Report on Entag buying Rubicon 8, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Corsica Technologies acquired AccountabilITManaged service provider offering cybersecurity and Microsoft services to mid-market and enterprise clients | MSSP, Managed security services | Undisclosed | Report on Corsica Technologies buying AccountabilIT, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Coalition acquired WirespeedManaged detection and response company | MDR, Managed detection and response | Undisclosed | Report on Coalition buying Wirespeed, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Bugcrowd acquired Mayhem SecurityApplication security firm offering technology for finding and prioritising vulnerabilities | AST, Application security testing | Undisclosed | Report on Bugcrowd buying Mayhem Security, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Axiom GRC acquired IS PartnersProvides cyber assurance and compliance audits across frameworks such as SOC 2 and ISO 27001 | Audits, Compliance audits (SOC 2, ISO 27001) | Undisclosed | Report on Axiom GRC buying IS Partners, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Arctic Wolf acquired UpSight SecurityProvides predictive AI and rollback capabilities for endpoint security | EDR, EDR and XDR | Undisclosed | Report on Arctic Wolf buying UpSight Security, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Amplix acquired 24By7SecurityCybersecurity consulting and compliance firm | Consulting, Security consulting and vCISO | Undisclosed | Report on Amplix buying 24By7Security, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | Allurity acquired Monti Stampa Furrer & Partners (MSF Partners)Skilled people who guard vital property and key systems | Consulting, Security consulting and vCISO | Undisclosed | Report on Allurity buying Monti Stampa Furrer & Partners (MSF Partners), November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2025 | 3LS Inc acquired Intrust ITManaged service provider offering IT support and cybersecurity protection | MSSP, Managed security services | Undisclosed | Report on 3LS Inc buying Intrust IT, November 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2025 | Veeam acquired Securiti AIData security posture management company | DSPM, Data security posture management | $1.7bn | Report on Veeam buying Securiti AI, October 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2025 | Vectra AI acquired NetographyNetwork observability company providing cloud-native visibility for cyberattack defence | NDR, Network detection and response | Undisclosed | Report on Vectra AI buying Netography, October 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2025 | Twilio acquired StytchIdentity platform for authenticating human users and AI agents | CIAM, Customer identity | Undisclosed | Report on Twilio buying Stytch, October 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2025 | Searchlight Cyber acquired IntangicRisk management company helping organisations measure and mitigate cyber risk | TPRM, Third-party risk and security ratings | Undisclosed | Report on Searchlight Cyber buying Intangic, October 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2025 | Robert Simonds acquired NSO GroupControversial spyware maker known for surveillance technology | | Undisclosed | Report on Robert Simonds buying NSO Group, October 2025 (opens in a new tab) |
| October 2025 | Riveron acquired Eden DataAustin advisory firm with cybersecurity and governance risk compliance expertise | GRC, GRC and compliance automation | Undisclosed | Report on Riveron buying Eden Data, October 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2025 | RecordPoint acquired RedactiveMelbourne startup helping companies adopt AI securely, compliantly and at scale | AI security, AI and LLM security | Undisclosed | Report on RecordPoint buying Redactive, October 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2025 | Ping Identity acquired KeylessLondon firm specialising in privacy-preserving biometric authentication technology | MFA, MFA and passwordless authentication | Undisclosed | Report on Ping Identity buying Keyless, October 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2025 | Pentera acquired DevOceanSpecialises in remediation management for security findings | Vulnerability management | $30m | Report on Pentera buying DevOcean, October 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2025 | LevelBlue acquired Cybereason | EDR, EDR and XDR | Undisclosed | Report on LevelBlue buying Cybereason, October 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2025 | JumpCloud acquired BreezA tool for spotting, probing and answering identity dangers | ITDR, Identity threat detection and response | Undisclosed | Report on JumpCloud buying Breez, October 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2025 | Imprivata acquired VerosintDetects and responds to identity-based threats using AI risk intelligence | ITDR, Identity threat detection and response | Undisclosed | Report on Imprivata buying Verosint, October 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2025 | Francisco Partners acquired JamfJamf provides management and security software for Apple devices in organisations. | Mobile security | $2.2bn | Report on Francisco Partners buying Jamf, October 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2025 | Dataminr acquired ThreatConnect | Threat intel, Threat intelligence | $290m | Report on Dataminr buying ThreatConnect, October 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| 8 Sept 2025 | SentinelOne acquired Observo AIObservo AI built an AI-native security data pipeline that filtered and enriched telemetry before it reached the SIEM. | Data pipelines, Security data pipelines | $225m | Report on SentinelOne buying Observo AI, 8 Sept 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | Wysetek Systems acquired Scalezee TechnologiesSpecialised DevSecOps and cloud services firm | | Undisclosed | Report on Wysetek Systems buying Scalezee Technologies, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |