| November 2023 | Method Security raised a seed round | EDR, EDR and XDR | $4.5m | Report on the Method Security funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | HydroX AI raised a seed roundInvestor Vitalbridge Capital | AI security, AI and LLM security | $4m | Report on the HydroX AI funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | GREYSCOUT raised a seed roundInvestors Act Venture Capital and Tribal.vc | DRP, Digital risk and brand protection | $4.3m | Report on the GREYSCOUT funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | Cognna raised a seed roundInvestor Impact46 | EDR, EDR and XDR | $2.3m | Report on the Cognna funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | Cavelo raised a seed roundInvestor Inovia Capital | ASM, Attack surface management | $3.6m | Report on the Cavelo funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | CAST AI raised a Series B roundInvestors Creandum, Uncorrelated Ventures and Vintage Investment Partners | Backup, Backup and cyber recovery | $35m | Report on the CAST AI funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | zeroRISC raised a seed roundInvestor Cambridge Angels Group | IoT security, IoT, embedded and product security | $5m | Report on the zeroRISC funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | Xage Security raised a Series B roundInvestor SAIC | IoT security, IoT, embedded and product security | $20m | Report on the Xage Security funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | Wraithwatch raised a seed roundInvestor Founders Fund | BAS, Breach and attack simulation | $8m | Report on the Wraithwatch funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | Vigilant Ops raised a seed roundInvestor DataTribe | SCA, Software supply chain and SBOM | Undisclosed | Report on the Vigilant Ops funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | spiderSilk raised a Series A roundInvestor Wa’ed Ventures | ASM, Attack surface management | $9m | Report on the spiderSilk funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | Polymer raised a seed round | DLP, Data loss prevention | $1.7m | Report on the Polymer funding round of November 2023 (opens in a new tab) |
| November 2023 | P0 Security raised a seed roundInvestors Lightspeed Venture Partners and SVA | ZTNA, Zero trust network access | $5m | Report on the P0 Security funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | Ostra Cybersecurity raised funding | MSSP, Managed security services | $2.5m | Report on the Ostra Cybersecurity funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | IO Connect Services raised private equity fundingInvestor East Los Capital | Consulting, Security consulting and vCISO | $8.5m | Report on the IO Connect Services funding round of November 2023 (opens in a new tab) |
| November 2023 | HyperSphere Technologies raised a seed roundInvestor Lightning Capital | Encryption, Encryption and key management | $3.3m | Report on the HyperSphere Technologies funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | Graylog raised a Series C roundInvestors Silver Lake Waterman, Harbert Growth Partners and Piper Sandler | SIEM | $9m | Report on the Graylog funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | Graylog raised debt fundingInvestors Silver Lake Waterman, Harbert Growth Partners and Piper Sandler | SIEM | $30m | Report on the Graylog funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | FusionAuth raised fundingInvestor Updata Partners | CIAM, Customer identity | $65m | Report on the FusionAuth funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | Cowbell Cyber raised a Series B roundInvestor Prosperity7 Ventures | DRP, Digital risk and brand protection | $25m | Report on the Cowbell Cyber funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | Chainguard raised a Series B roundChainguard builds hardened, verified open source container images, libraries and packages to reduce vulnerabilities.Investor Spark Capital | SCA, Software supply chain and SBOM | $61m | Report on the Chainguard funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2023 | Yuengling’s Ice Cream acquired ReachOut Technology | | Undisclosed | Report on Yuengling’s Ice Cream buying ReachOut Technology, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | Washington Harbour Partners acquired SIXGENSells safety and testing goods to public bodies and businesses | | Undisclosed | Report on Washington Harbour Partners buying SIXGEN, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | Vertu Capital acquired ActiveState SoftwareSecure open source integration platform for enterprise software developers | SCA, Software supply chain and SBOM | Undisclosed | Report on Vertu Capital buying ActiveState Software, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | VC3 acquired GO ConceptsOhio provider of managed IT, business continuity, cybersecurity and cloud services | MSSP, Managed security services | Undisclosed | Report on VC3 buying GO Concepts, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | Travelers acquired Corvus Insurance Holdings | | $435m | Report on Travelers buying Corvus Insurance Holdings, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | Thrive acquired 4ITSouth Florida managed service provider handling intricate technology projects | MSSP, Managed security services | Undisclosed | Report on Thrive buying 4IT, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | System One acquired KeyLogicOffers secure development practices and protection advice to clients | | Undisclosed | Report on System One buying KeyLogic, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | Summit 7 acquired CSW SystemsProvides security solutions for sensitive and classified information handling organisations | | Undisclosed | Report on Summit 7 buying CSW Systems, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | SonicWall acquired Solutions GrantedProvides cybersecurity solutions and services to MSPs and MSSPs | MSSP, Managed security services | Undisclosed | Report on SonicWall buying Solutions Granted, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | SentinelOne acquired Krebs Stamos GroupStrategic risk analysis and advisory services founded by security leaders | Consulting, Security consulting and vCISO | Undisclosed | Report on SentinelOne buying Krebs Stamos Group, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | PureHealth acquired PureCSCloud and technology services provider specialising in cyber security and AI systems | MSSP, Managed security services | Undisclosed | Report on PureHealth buying PureCS, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | Palo Alto Networks acquired Talon Cyber SecurityProvides a secure enterprise browser for cloud data security | SASE, SASE and SSE | $625m | Report on Palo Alto Networks buying Talon Cyber Security, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | PagerDuty acquired JeliEnables automated incident management and improves enterprise resilience | IR, Incident response | Undisclosed | Report on PagerDuty buying Jeli, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | Nostra acquired EnclaveDublin IT service provider known for digital transformation and cybersecurity | MSSP, Managed security services | Undisclosed | Report on Nostra buying Enclave, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | Nostra acquired CompunetCork managed service provider offering Microsoft cloud solutions and IT services | MSSP, Managed security services | Undisclosed | Report on Nostra buying Compunet, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | MetaCompliance acquired Increase Your SkillsProvides cybersecurity awareness training to organisations in Germany | Awareness training, Security awareness and human risk | Undisclosed | Report on MetaCompliance buying Increase Your Skills, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | Madison Dearborn Partners acquired T2S Solutions | | Undisclosed | Report on Madison Dearborn Partners buying T2S Solutions, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | Kiteworks acquired ownCloudSecure and compliant file sharing and collaboration | | Undisclosed | Report on Kiteworks buying ownCloud, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | Kiteworks acquired MaytechData file transfer solutions for various industries | | Undisclosed | Report on Kiteworks buying Maytech, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | Kiteworks acquired DRACOONSecure and compliant file sharing and collaboration | | Undisclosed | Report on Kiteworks buying DRACOON, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | IP Pathways acquired Tenax SolutionsSecurity solutions provider offering vulnerability scans, penetration testing and compliance examinations | Pen testing, Penetration testing | Undisclosed | Report on IP Pathways buying Tenax Solutions, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | Exterro acquired DivebellData discovery SaaS for structured and unstructured data | | Undisclosed | Report on Exterro buying Divebell, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | DynTek and rSolutions acquired ArctiqCloud, DevOps and automation solution integrator | | Undisclosed | Report on DynTek and rSolutions buying Arctiq, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | Dataprise acquired PEIIT services provider with Microsoft expertise for businesses | MSSP, Managed security services | Undisclosed | Report on Dataprise buying PEI, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | Certn acquired TrustmaticIdentity document reading, face liveness detection and biometrics | IAM, Identity and access management | Undisclosed | Report on Certn buying Trustmatic, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | C3 Integrated Solutions acquired Ingalls Information SecurityCybersecurity risk management with incident response and security operations | MDR, Managed detection and response | Undisclosed | Report on C3 Integrated Solutions buying Ingalls Information Security, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | Boltonshield acquired ScanmeterExternal attack surface management firm based in Switzerland | ASM, Attack surface management | Undisclosed | Report on Boltonshield buying Scanmeter, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | BlueVoyant acquired Conquest CyberProvides cyber risk management services to the US government | | Undisclosed | Report on BlueVoyant buying Conquest Cyber, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| November 2023 | AMYNA Systems acquired EPL AdvisorsAdvises on planning, dealing with investors, raising money and first deals | Consulting, Security consulting and vCISO | Undisclosed | Report on AMYNA Systems buying EPL Advisors, November 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |