| 12 Oct 2026 | IonQ acquired ElisityElisity provides identity-based microsegmentation software to contain lateral movement across enterprise networks. | $1.3bn | Report on IonQ buying Elisity, 12 Oct 2026 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| September 2026 | Island raised a Series F roundIsland provides an enterprise browser that integrates security, IT, and AI-powered productivity for organisations.Investor Evolution Equity Partners | $400m | Report on the Island funding round of September 2026 (opens in a new tab)via Security, Funded (opens in a new tab) |
| March 2026 | Ekinops acquired ChimereProvides universal zero trust network access to connect endpoints with enterprise resources | Undisclosed | Report on Ekinops buying Chimere, March 2026 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| January 2026 | Zeroport raised a seed roundInvestor lool ventures | $10m | Report on the Zeroport funding round of January 2026 (opens in a new tab)via Security, Funded (opens in a new tab) |
| January 2026 | NetBird raised a Series A roundInvestor Pace Capital | $9.9m | Report on the NetBird funding round of January 2026 (opens in a new tab)via Security, Funded (opens in a new tab) |
| December 2025 | Outpost24 acquired InfinipointChecks devices and their state, then lets staff log in safely | 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 | Undisclosed | Report on Northern Telecom buying C-STEM, December 2025 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| June 2025 | Zero Networks raised a Series C roundZero Networks provides automated microsegmentation and zero trust security to stop lateral movement and contain attacks.Investor Highland Europe | $55m | Report on the Zero Networks funding round of June 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| May 2025 | Defguard raised a pre-seed roundInvestor Hard2beat | $1.4m | Report on the Defguard funding round of May 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| April 2025 | Tailscale raised a Series C roundInvestor Accel | $160m | Report on the Tailscale funding round of April 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| April 2025 | Portnox raised a Series B roundInvestor Updata Partners | $37.5m | Report on the Portnox funding round of April 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| March 2025 | Island raised a Series E roundIsland provides an enterprise browser that integrates security, IT, and AI-powered productivity for organisations.Investor Coatue | $250m | Report on the Island funding round of March 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| March 2025 | Knocknoc raised a seed roundInvestor Decibel Partners | Undisclosed | Report on the Knocknoc funding round of March 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| February 2025 | Island raised private equity fundingIsland provides an enterprise browser that integrates security, IT, and AI-powered productivity for organisations.Investor Coatue | Undisclosed | Report on the Island funding round of February 2025 (opens in a new tab)via Security, Funded (opens in a new tab) |
| December 2024 | NetBird raised a seed roundInvestors Nauta Capital and InReach Ventures | $4.2m | Report on the NetBird funding round of December 2024 (opens in a new tab)via Security, Funded (opens in a new tab) |
| December 2024 | Citrix acquired DeviceTrustProvides real-time protection for virtual desktop and desktop-as-a-service users | Undisclosed | Report on Citrix buying DeviceTrust, December 2024 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| October 2024 | TerraZone raised a corporate roundInvestor World Health Energy Holdings | Undisclosed | Report on the TerraZone funding round of October 2024 (opens in a new tab)via Security, Funded (opens in a new tab) |
| October 2024 | Island raised a Series D roundIsland provides an enterprise browser that integrates security, IT, and AI-powered productivity for organisations.Investors Coatue and Sequoia Capital | Undisclosed | Report on the Island funding round of October 2024 (opens in a new tab)via Security, Funded (opens in a new tab) |
| September 2024 | P0 Security raised a Series A roundInvestor SYN Ventures | $15m | Report on the P0 Security funding round of September 2024 (opens in a new tab)via Security, Funded (opens in a new tab) |
| June 2024 | Pomerium raised a Series A roundInvestor Benchmark | $13.8m | Report on the Pomerium funding round of June 2024 (opens in a new tab)via Security, Funded (opens in a new tab) |
| May 2024 | Island raised a Series D roundIsland provides an enterprise browser that integrates security, IT, and AI-powered productivity for organisations.Investors Coatue and Sequoia Capital | $175m | Report on the Island funding round of May 2024 (opens in a new tab)via Security, Funded (opens in a new tab) |
| May 2024 | Elisity raised a Series B roundElisity provides identity-based microsegmentation software to contain lateral movement across enterprise networks.Investor Insight Partners | $37m | Report on the Elisity funding round of May 2024 (opens in a new tab)via Security, Funded (opens in a new tab) |
| May 2024 | Cloudflare acquired BastionZeroStartup providing native access management for servers, Kubernetes and databases | Undisclosed | Report on Cloudflare buying BastionZero, May 2024 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| April 2024 | Zscaler acquired Airgap NetworksCompany offering tools that divide networks and grant safe entry | Undisclosed | Report on Zscaler buying Airgap Networks, April 2024 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| January 2024 | SonicWall acquired Banyan SecurityZero-trust network access technology | Undisclosed | Report on SonicWall buying Banyan Security, January 2024 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| December 2023 | Bowtie raised a seed round | $3.2m | Report on the Bowtie funding round of December 2023 (opens in a new tab) |
| November 2023 | P0 Security raised a seed roundInvestors Lightspeed Venture Partners and SVA | $5m | Report on the P0 Security funding round of November 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| October 2023 | Island raised a Series C roundIsland provides an enterprise browser that integrates security, IT, and AI-powered productivity for organisations.Investor Prysm Capital | $100m | Report on the Island funding round of October 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| September 2023 | Discern Security raised a seed roundInvestors BoldCap, WestWave Capital and Cyber Mentor Fund | $3m | Report on the Discern Security funding round of September 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| July 2023 | Cyclops Security raised a seed roundInvestors Merlin Ventures, Insight Partners, TAL Ventures and toDay.Ventures | $6.4m | Report on the Cyclops Security funding round of July 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| June 2023 | Venn raised a Series A roundInvestor NewSpring | $29m | Report on the Venn funding round of June 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| May 2023 | Lumeus.ai raised a seed roundInvestor Tola Capital | $6m | Report on the Lumeus.ai funding round of May 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| May 2023 | NetBird raised a pre-seed roundInvestor Antler | $1.2m | Report on the NetBird funding round of May 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| April 2023 | Sonet.io raised a seed roundInvestors The Hive and WestWave Capital | $6m | Report on the Sonet.io funding round of April 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| April 2023 | Allurity acquired CloudComputingWorks on identity, zero trust and keeping data safe | Undisclosed | Report on Allurity buying CloudComputing, April 2023 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| March 2023 | Orro Group raised fundingInvestor Macquarie Capital | $150m | Report on the Orro Group funding round of March 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| February 2023 | Procyon.ai raised a seed roundInvestors Lobby Capital, GTM Capital and First Rays Venture Partners | $6.5m | Report on the Procyon.ai funding round of February 2023 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2022 | Cloudbrink raised fundingInvestors Highland Capital Partners and The Fabric | $25m | Report on the Cloudbrink funding round of November 2022 (opens in a new tab)via Security, Funded (opens in a new tab) |
| November 2022 | Island raised a Series B roundIsland provides an enterprise browser that integrates security, IT, and AI-powered productivity for organisations.Investor Georgian | $60m | Report on the Island funding round of November 2022 (opens in a new tab)via Security, Funded (opens in a new tab) |
| October 2022 | Cyolo raised fundingInvestor IBM Ventures | Undisclosed | Report on the Cyolo funding round of October 2022 (opens in a new tab)via Security, Funded (opens in a new tab) |
| July 2022 | Island raised a Series B roundIsland provides an enterprise browser that integrates security, IT, and AI-powered productivity for organisations.Investor Cisco Investments | $10m | Report on the Island funding round of July 2022 (opens in a new tab)via Security, Funded (opens in a new tab) |
| June 2022 | Cyolo raised a Series B roundInvestor National Grid Partners (NGP) | $60m | Report on the Cyolo funding round of June 2022 (opens in a new tab)via Security, Funded (opens in a new tab) |
| June 2022 | Johnson Controls acquired Tempered NetworksZero trust security provider | Undisclosed | Report on Johnson Controls buying Tempered Networks, June 2022 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| June 2022 | Corel acquired AwinguSecure remote access technology provider | Undisclosed | Report on Corel buying Awingu, June 2022 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| May 2022 | Tailscale raised a Series B roundInvestors CRV and Insight Partners | $99m | Report on the Tailscale funding round of May 2022 (opens in a new tab) |
| April 2022 | Twingate raised a Series B roundTwingate provides identity-based access to private resources, replacing traditional VPNs for remote work.Investor 8VC | $42m | Report on the Twingate funding round of April 2022 (opens in a new tab) |
| March 2022 | Island raised a Series B roundIsland provides an enterprise browser that integrates security, IT, and AI-powered productivity for organisations.Investor Insight Partners | $115m | Report on the Island funding round of March 2022 (opens in a new tab) |
| March 2022 | Belden acquired Macmon secureMakes network access control software | Undisclosed | Report on Belden buying Macmon secure, March 2022 (opens in a new tab)via SecurityWeek (opens in a new tab) |
| February 2022 | Zero Networks raised a Series A roundZero Networks provides automated microsegmentation and zero trust security to stop lateral movement and contain attacks. | $20.3m | Report on the Zero Networks funding round of February 2022 (opens in a new tab) |
| February 2022 | Talon Cyber Security raised a seed round | $17m | Report on the Talon Cyber Security funding round of February 2022 (opens in a new tab) |