| December 2025 | Symposit acquired HumanLinkHuman factors engineering consultancy for aviation and transportation security training | Awareness training, Security awareness and human risk | Undisclosed | Report on Symposit buying HumanLink, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | SPIE acquired Cyqueo | | Undisclosed | Report on SPIE buying Cyqueo, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | Silent Push acquired HYASWatches for threats early and filters domain name lookups | Threat intel, Threat intelligence | Undisclosed | Report on Silent Push buying HYAS, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | ServiceNow acquired VezaVeza provides an identity security platform that manages access to data across cloud and on-premises systems. | IGA, Identity governance and administration | $1bn | Report on ServiceNow buying Veza, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | ServiceNow acquired ArmisArmis provides cyber exposure management and security for connected devices and operational technology. | IoT security, IoT, embedded and product security | $7.8bn | Report on ServiceNow buying Armis, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | Red River acquired InvictusNational security services provider with cyber, intelligence and enterprise modernisation capabilities | Consulting, Security consulting and vCISO | Undisclosed | Report on Red River buying Invictus, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | Red Hat acquired Chatterbox LabsAI security and safety company offering guardrails and safety testing | AI security, AI and LLM security | Undisclosed | Report on Red Hat buying Chatterbox Labs, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | oXya acquired Axl & TraxSAP cyber security, access control and risk management consulting | IGA, Identity governance and administration | Undisclosed | Report on oXya buying Axl & Trax, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | Outpost24 acquired InfinipointChecks devices and their state, then lets staff log in safely | ZTNA, Zero trust network access | Undisclosed | Report on Outpost24 buying Infinipoint, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | Northern Telecom acquired C-STEMZero trust architecture and managed IT solutions | ZTNA, Zero trust network access | Undisclosed | Report on Northern Telecom buying C-STEM, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | MetaCompliance acquired JunglemapSecurity and compliance awareness training using NanoLearning methodology | Awareness training, Security awareness and human risk | Undisclosed | Report on MetaCompliance buying Junglemap, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | Limerston Capital acquired AristiCHECK and CREST-accredited Birmingham-based cyber security consultancy with over 15 years of experience delivering penetration testing, red teaming, and OT security assessments for government and private sector clients. | Pen testing, Penetration testing | Undisclosed | Report on Limerston Capital buying Aristi, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | itSynergy acquired ComplyIT and cybersecurity services for registered investment advisers | MSSP, Managed security services | Undisclosed | Report on itSynergy buying Comply, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | Integrity360 acquired RedshiftAfrican cyber security services firm, details not described | MSSP, Managed security services | Undisclosed | Report on Integrity360 buying Redshift, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | Integrity360 acquired CrescoBenelux cyber security services firm, details not described | MSSP, Managed security services | Undisclosed | Report on Integrity360 buying Cresco, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | Infinum acquired AMR CyberSecurityPenetration testing and security consulting services | Pen testing, Penetration testing | Undisclosed | Report on Infinum buying AMR CyberSecurity, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | ID-Pal acquired NorthRowKnow your business checks and anti-money laundering compliance intelligence | GRC, GRC and compliance automation | Undisclosed | Report on ID-Pal buying NorthRow, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | Harbor IT acquired ZAG TechnicalManaged service provider for agricultural manufacturing, with OT and IT expertise | MSSP, Managed security services | Undisclosed | Report on Harbor IT buying ZAG Technical, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | Cyderes acquired LucidumA data layer built around identity for current cyber defence | ITDR, Identity threat detection and response | Undisclosed | Report on Cyderes buying Lucidum, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | Checkmarx acquired TromzoBuilds AI-native autonomous security agents for application security | SOAR, SOAR and security automation | Undisclosed | Report on Checkmarx buying Tromzo, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2025 | BTQ acquired KeypairKorean full-stack security company with post-quantum cryptography intellectual property | Encryption, Encryption and key management | Undisclosed | Report on BTQ buying Keypair, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| 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 | vijil raised fundingInvestor Brightmind Partners | AI security, AI and LLM security | $17m | Report on the vijil funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | SpecterOps raised fundingAdversary-focused security firm created by former DoD red team operators. Creators of BloodHound. CREST-accredited for penetration testing, red teaming, and purple team assessments. | Pen testing, Penetration testing | $30m | Report on the SpecterOps funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | Social Links raised a seed roundOSINT and social media investigation software, including SL Crimewall, an API and a Maltego integration, used by law enforcement and corporate security teams.Investor Yellow Rocks! | OSINT, OSINT tools | $3m | Report on the Social Links funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | Opti raised a seed roundInvestors YL Ventures, Mayfield Fund and Hetz Ventures | IAM, Identity and access management | $20m | Report on the Opti funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | NetFoundry raised a Series A roundInvestor Cisco Investments | SASE, SASE and SSE | $15m | Report on the NetFoundry funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | CodeNotary raised funding | SCA, Software supply chain and SBOM | $16.5m | Report on the CodeNotary funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | Clover Security raised a Series A roundInvestors Notable Capital and Team8 | AST, Application security testing | $30m | Report on the Clover Security funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | Blast Security raised a seed roundBlast Security provides a preemptive cloud defense platform.Investors 10D and MizMaa Ventures | CNAPP, Cloud security (CNAPP and CSPM) | $10m | Report on the Blast Security funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | Augmentt raised a Series A roundInvestor Camber Partners | MSSP, Managed security services | $12.9m | Report on the Augmentt funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | Twenty Technologies raised a Series A roundInvestor Caffeinated Capital | Pen testing, Penetration testing | $38m | Report on the Twenty Technologies funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | ShorePoint raised private equity fundingInvestor CM Equity Partners | Consulting, Security consulting and vCISO | Undisclosed | Report on the ShorePoint funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | Secure.com raised a seed roundInvestor Disrupt Ventures | SOAR, SOAR and security automation | $4.5m | Report on the Secure.com funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | Runlayer raised a seed roundInvestors Khosla Ventures and Felicis | AI security, AI and LLM security | $11m | Report on the Runlayer funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | ROOTKey raised a seed round | | Undisclosed | Report on the ROOTKey funding round of November 2025 (opens in a new tab) |
| November 2025 | Nudge Security raised a Series A roundInvestor Cerberus Ventures | SSPM, SaaS security | $22.5m | Report on the Nudge Security funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | Method Security raised a Series A roundInvestors Andreessen Horowitz and General Catalyst | NDR, Network detection and response | $21.5m | Report on the Method Security funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | Mate Security raised a seed roundInvestors Team8 and Insight Partners | SOAR, SOAR and security automation | $15.5m | Report on the Mate Security funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | Kestrel AI raised a seed roundInvestor Team Ignite Ventures | IR, Incident response | Undisclosed | Report on the Kestrel AI funding round of November 2025 (opens in a new tab) |
| November 2025 | Guardio raised a Series B roundGuardio provides online protection for individuals and businesses, securing accounts and devices.Investor ION Crossover Partners | Email security | $80m | Report on the Guardio funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | Feroot Security raised a Series A roundInvestor True Ventures | AST, Application security testing | $14m | Report on the Feroot Security funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | Elevate Services Group raised debt funding | MSSP, Managed security services | $8m | Report on the Elevate Services Group funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | Doppel raised a Series C roundDoppel provides an AI-powered platform for social engineering defense and digital risk protection.Investor Bessemer Venture Partners | DRP, Digital risk and brand protection | $70m | Report on the Doppel funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2025 | Cybrary raised funding | Awareness training, Security awareness and human risk | $4.5m | Report on the Cybrary funding round of November 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |