Company profile
Island
Enterprise browser plus AI Protect: prompts, tool calls, Island MCP Gateway — agentic control plane for humans and AI agents.
- Status
- PrivateResearch map: Series F / private · Dallas · $6.4B
- Valuation
- $6.4B Sep 24, 2026CyberMerge Funding Tracker — CNBC/CTech/GlobeNewswire Sep 24: Evolution Equity–led Series F at $6.4B. Prior March 2025 $250M at $4.8B (CTech). Source
- Latest funding
- Series F · $400M Sep 24, 2026CNBC / CTech / GlobeNewswire Source
- HQ
- Dallas / US (Startup Radar)
- Website
- island.io
- Last updated
Categories
Funding & valuation
| Date | Round | Amount | Valuation | Source |
|---|---|---|---|---|
| Sep 24, 2026 | Series F | $400M | $6.4B | CNBC / CTech / GlobeNewswireCNBC/CTech/GlobeNewswire Sep 24: Evolution Equity–led Series F at $6.4B. Prior March 2025 $250M at $4.8B (CTech). |
Research map notes
- Research map · AI Agent Security · $6.4B Series F $400M (Sep 24 2026, Evolution Equity) — $6.4B valuation Source (recorded Oct 1, 2026)
Latest signals
- Startup Radar · AI Security · snapshot Sep 29, 2026 24 Sep 2026: $400M Series F led by Evolution Equity Partners; valuation $6.4B (Sequoia, Coatue, Insight, Cyberstarts, J.P. Morgan Growth Equity also in); enterprise browser expanding into agentic control plane for humans and AI agents (primary GlobeNewswire/CNBC/CTech 9/24). Source
- Startup Radar · Threat Detection · snapshot Sep 24, 2026 24 Sep 2026: $400M Series F @ $6.4B (Evolution Equity–led; Sequoia/Coatue/Insight/Cyberstarts/J.P. Morgan Growth Equity); browser + last-mile phishing/malware detection plus AI Protect / MCP Gateway (GlobeNewswire/CNBC/CTech 9/24). Source
Versus matchups
- Island Enterprise Browser vs Prisma Access BrowserBrowser · Archive
Versus calls are editorial, not audited market share.
Competitors
Same-category peers from CyberMerge Research maps, Startup Radar and What's The Use tags.
- Palo Alto NetworksPublic · PANWEnterprise security platform spanning NGFW, SASE, CNAPP, and Cortex SOC analytics.
- MicrosoftPublic · MSFTIdentity, endpoint, cloud, email, and SOC tooling integrated across Microsoft 365 and Azure.
- CrowdStrikePublic · CRWDCloud-native endpoint and identity security with managed hunting and XDR.
- CiscoPublic · CSCONetworking-led security spanning access, email, XDR, and industrial control environments.
- RecoPrivateIdentity/SaaS graph for apps, AI agents, and NHIs: discovers agents, maps reach to…
- Eve SecurityPrivateAgentic AI runtime security (EveGuard): Agent-in-the-Loop observability, intent/data policy enforcement, and…
- HiddenLayerPrivateModel and agent discovery, AI supply-chain scanning, attack simulation, runtime firewall, AIBOM.
- KontextPrivateRuntime authorization for AI agents: sits between the agent and target systems, checks each requested action…
- OuterlimitPrivateDecentralized security and authorization layer for agentic AI: extends Zero Trust to the agent action layer…
- Token SecurityPrivateAgentless machine and AI-agent identity governance from legacy apps through cloud and SaaS.
- 7AIPrivateMulti-agent AI SOC (Cybereason co-founders); swarming agents cover detection-to-response on the existing…
- Dropzone AIPrivateAgentic SOC analyst for end-to-end alert investigation; expanding into AI Threat Hunter / intel agents.
Related CyberMerge stories
- Island’s $6.4B bet: the browser was the beachhead. Agents are the product. Sep 24, 2026 · Funding
- Jamf buys Keep Aware’s browser BDR. Apple MDM just entered Island’s surface. Sep 24, 2026 · M&A
- Don't invent a TAM for the enterprise browser. Watch the displacement. Aug 27, 2026 · MARKET INSIGHTS
On the desk
- Startup Radar · Sep 24, 2026 Island raised $400M Series F at $6.4B — Evolution Equity–led; agentic control plane beyond enterprise browser. CNBC / CTech / GlobeNewswire
Figures appear only as recorded in CyberMerge data, with source and date. “Undisclosed” means no published figure in our data. Editorial, not investment advice. Last updated . Spot an error? Tell the desk.