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Island, an enterprise software company that makes a browser for business use, announced a $250 million Series E on March 26, 2025. The company said Coatue Management led the round and that the financing valued Island at $4.8 billion. The Series E is no longer its latest funding: Island announced a $400 million Series F at a $6.4 billion valuation on September 24, 2026.
What Island’s $250 million Series E involved
Island announced the Series E on March 26, 2025. In its announcement, the company said Coatue Management led the round, existing investors also participated, and the financing brought its total outside investment to approximately $730 million. Island did not identify every participant in its release.
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TechCrunch reported that Insight Partners, Sequoia, and Canapi Ventures participated, among others, but that list should not be treated as exhaustive. TechCrunch put the valuation at $4.85 billion; Island’s own figure was $4.8 billion. The difference is a rounding discrepancy in reporting on the same round, not evidence of two separate valuations.
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Island describes its product as a Chromium-based browser that integrates enterprise security, IT, data, access, and productivity controls into the browsing experience. Its Series E announcement named secure access to SaaS and web applications, zero-trust network access, bring-your-own-device (BYOD) use, contractor onboarding, mergers and acquisitions transitions, and reduced reliance on virtual desktop infrastructure (VDI) as use cases.
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- 【Five Gigabit Ports】1 Gigabit WAN Port plus 2 Gigabit WAN/LAN Ports plus 2 Gigabit LAN Port. Up to 3 WAN ports optimize bandwidth usage through one device.
- 【One USB WAN Port】Mobile broadband via 4G/3G modem is supported for WAN backup by connecting to the USB port. For complete list of compatible 4G/3G modems, please visit TP-Link website.
- 【Abundant Security Features】Advanced firewall policies, DoS defense, IP/MAC/URL filtering, speed test and more security functions protect your network and data.
- 【Highly Secure VPN】Supports up to 20× LAN-to-LAN IPsec, 16× OpenVPN, 16× L2TP, and 16× PPTP VPN connections.
- Security - SPI Firewall, VPN Pass through, FTP/H.323/PPTP/SIP/IPsec ALG, DoS Defence, Ping of Death and Local Management. Standards and Protocols IEEE 802.3, 802.3u, 802.3ab, IEEE 802.3x, IEEE 802.1q
These are Island’s product descriptions and intended use cases, not independently validated findings about security, performance, or customer outcomes. The funding announcements reviewed do not establish pricing, contract terms, customer-side return on investment, or comparative test results.
How Island has changed since the Series E
The Series E announcement said Island had approximately 500 employees and 450 customers in March 2025. Island also said its annual recurring revenue had more than doubled each year since it emerged from stealth in February 2022. Those are company-reported figures, not audited financial disclosures.
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- High performance hardware with one 10G/Multi-Gig configurable LAN/WAN port, one 2.5G WAN port, three 2.5G LAN ports and one 10G SFP+ port for long-distance backhaul
- Dual WAN Ports with failover and load balancing for reliable, seamless connectivity. Optimize network performance and security with up to 32 VLANs
- Secure remote network access via IPSec Site-to-Site and Client-to-Site VPN, Open VPN and WireGuard, with up to 100 client device connections and 30 VPN tunnels
- Integrates with NETGEAR Pro WiFi Access Points and select Smart switches as part of NETGEAR’s Enterprise Network Solution, designed for easy SME management
- NETGEAR Insight for remote network management anytime, from anywhere. Includes 1-year subscription
On September 24, 2026, Island announced a subsequent $400 million Series F led by Evolution Equity Partners, with existing and new investors participating. Island said the round valued it at $6.4 billion. Its later announcement reported 1,000 employees and said annual recurring revenue had doubled each fiscal year since its 2022 launch; these, too, are company-reported metrics. The 2026 release also described Island as an “agentic control plane for enterprises,” extending its browser foundation across endpoints, networks, applications, and data, with governance for people and AI agents. That is Island’s framing of its expanded position.
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A private-company valuation reported with a funding round is not a public stock price or a figure at which ordinary readers can necessarily buy or sell shares. Island’s $4.8 billion figure describes the valuation it reported for the 2025 financing; the $6.4 billion figure is the company’s reported valuation for its later 2026 round. Neither figure, by itself, establishes profitability, revenue, or what an individual investment would be worth.
Quick Recap
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- ALL-IN-ONE VPN SOLUTION FOR REMOTE WORK: Extends your corporate network to homes or remote offices, enabling access with enhanced security to resources without complex setup. Ideal for small businesses, entrepreneurs, and enterprises supporting remote or hybrid teams
- ENTERPRISE-GRADE SECURITY & ENCRYPTION: Helps protect sensitive data using IPSec, PPTP, L2TP, OpenVPN, SSL, and strong encryption (DES, 3DES, AES), reducing risk from external threats in an increasingly digital landscape
- FOLLOWS NDAA & TAA FOR ENHANCED TRUST: Made in Taiwan. Meets government and industry standards, making it well-suited for agencies and businesses under strict regulations, while providing reassurance for any organization seeking elevated data protection
- DUAL WAN FAILOVER FOR CONTINUOUS CONNECTIVITY: Automatically switches to a backup internet source if the primary goes down, minimizing disruptions to crucial tasks like video calls or file sharing. Load balancing ensures optimized bandwidth for smoother, more reliable performance
- SIMPLIFIED MANAGEMENT: Web-based and SNMP tools offer clear visibility and control, reducing complex troubleshooting and making it easier to deploy
Rank #3
- Separate and Secure Usage – Up to five SSIDs to separate and prioritize devices for different business scenarios.
- Customizable Guest Portal – Customize the SSID, portal type, brand name and templates to fit your business style.
- Backup WAN for Stable Connectivity - The USB port can be used as a backup WAN by connecting it to a mobile phone with hotspot to maintain a reliable internet connection
- Enterprise-grade Network Security – Receive a free subscription to ASUS AiProtection Pro and safe browsing features to secure your WiFi environment.
- Easy management – The all-in-one ASUS ExpertWiFi app provides easy setup and hassle-free management of your WiFi network.
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