| 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) |
| September 2025 | Varonis acquired SlashNextProvides email security using predictive AI against spearphishing and social engineering | Email security | $150m | Report on Varonis buying SlashNext, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | Unico acquired OwnIDPasswordless decentralised authentication and identity solutions | MFA, MFA and passwordless authentication | Undisclosed | Report on Unico buying OwnID, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | UltraViolet Cyber acquired Black DuckApplication security testing services business | AST, Application security testing | Undisclosed | Report on UltraViolet Cyber buying Black Duck, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | Thrive acquired VitalCORE | | Undisclosed | Report on Thrive buying VitalCORE, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | Tego acquired VigilAigentProvides managed security services | MSSP, Managed security services | Undisclosed | Report on Tego buying VigilAigent, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | Sunstone Partners acquired Clearwater | | Undisclosed | Report on Sunstone Partners buying Clearwater, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | Spreedly acquired Dodgeball | Fraud prevention, Fraud and payment fraud prevention | Undisclosed | Report on Spreedly buying Dodgeball, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | Spectrotel acquired Mosaic NetworX | SASE, SASE and SSE | Undisclosed | Report on Spectrotel buying Mosaic NetworX, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | SecurityScorecard acquired HyperComplyUses artificial intelligence to handle security forms and rule keeping | GRC, GRC and compliance automation | Undisclosed | Report on SecurityScorecard buying HyperComply, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | Seclab acquired Seckiot | OT security, OT and ICS security | Undisclosed | Report on Seclab buying Seckiot, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | SDG Corporation acquired Hub City MediaConsultancy specialising in identity and access management integration services | IAM, Identity and access management | Undisclosed | Report on SDG Corporation buying Hub City Media, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | Scope Technologies acquired Plurilock Security (Cloud Codes)Indian firm providing secure single sign-on and distributed storage solutions | IAM, Identity and access management | Undisclosed | Report on Scope Technologies buying Plurilock Security (Cloud Codes), September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | Mitsubishi Electric acquired Nozomi NetworksNozomi Networks provides OT and IoT security solutions for critical infrastructure, offering asset visibility and threat detection. | OT security, OT and ICS security | $883m | Report on Mitsubishi Electric buying Nozomi Networks, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | IDtech acquired OwnIDUS startup offering passwordless and passkey authentication with biometric login | MFA, MFA and passwordless authentication | Undisclosed | Report on IDtech buying OwnID, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | Harness acquired Qwiet AIAgentic AI-powered vulnerability detection and reachability analysis for application code | AST, Application security testing | Undisclosed | Report on Harness buying Qwiet AI, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | Halon acquired ElevenGerman provider of email threat intelligence for mailbox providers and ISPs | Email security | Undisclosed | Report on Halon buying Eleven, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | Hack the Box acquired LetsDefendHands-on cyber defence training platform for blue team professionals | Awareness training, Security awareness and human risk | Undisclosed | Report on Hack the Box buying LetsDefend, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | Fortified Health Security acquired LatitudeHealthcare cybersecurity advisory firm for HITRUST, risk and third-party risk | Consulting, Security consulting and vCISO | Undisclosed | Report on Fortified Health Security buying Latitude, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | Fairdinkum Consulting acquired Tech 2020 SolutionsManaged services provider offering IT solutions to regional clients | MSSP, Managed security services | Undisclosed | Report on Fairdinkum Consulting buying Tech 2020 Solutions, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | F5 acquired CalypsoAISecures AI at inference with red teaming and real-time defences | AI security, AI and LLM security | $180m | Report on F5 buying CalypsoAI, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | EchoStor acquired CyberNorthEnterprise and public sector IT solutions in data protection and cloud | MSSP, Managed security services | Undisclosed | Report on EchoStor buying CyberNorth, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | EbankIT acquired SecuritySideCybersecurity capabilities including security and fraud prevention for banks | Fraud prevention, Fraud and payment fraud prevention | Undisclosed | Report on EbankIT buying SecuritySide, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | DigiCert acquired ValimailValimail provides automated DMARC and email authentication services to stop phishing and domain impersonation. | DMARC, DMARC and email authentication | Undisclosed | Report on DigiCert buying Valimail, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | CrowdStrike acquired PangeaProvides security protections for enterprise AI systems | AI security, AI and LLM security | Undisclosed | Report on CrowdStrike buying Pangea, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | CompassMSP acquired SimplegridManaged services provider for financial, legal and healthcare sectors | MSSP, Managed security services | Undisclosed | Report on CompassMSP buying Simplegrid, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2025 | Com Laude acquired MarkmonitorCorporate domain registrar and brand protection services for large brands | DRP, Digital risk and brand protection | Undisclosed | Report on Com Laude buying Markmonitor, September 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |