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Cybersecurity startup Island raised $175 million in a Series D financing round led by Coatue and Sequoia Capital to enhance its secure enterprise browser.

PRIVATEFeb 08, 2025•over 1 year ago

Amount Raised

$175 Million

Round Type

series d

Dallas

Investors

Prysm CapitalGeorgianStripesInsight PartnersSequoia CapitalCoatue

Description

Island raised $175 million in a Series D financing round, increasing its valuation to $4.5 billion. This funding event was led by Coatue along with existing investors Sequoia Capital, Insight Partners, Stripes, Georgian, and Prysm Capital.

Company Information

Company

Island

Location

Dallas, Texas, United States

About

What if the enterprise had complete control over the browser? What would it mean for security, for productivity, for work itself? Introducing Island, the Enterprise Browser - the ideal enterprise workplace, where work flows freely while remaining fundamentally secure. With the core needs of the enterprise naturally embedded in the browser itself, Island gives organizations complete control, visibility, and governance over the last mile, while delivering the same smooth Chromium-based browser experience users expect. Led by experienced leaders in enterprise security and browser technology and backed by leading venture funds -- Insight Partners, Sequoia Capital, Cyberstarts and Stripes Capital -- Island is redefining the future of work for some of the largest, most respected enterprises in the world.

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Predictive Intelligence
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ML-powered predictions for Island's next move

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Funding Insights

Based on industry data
VC-backed spending patterns
VC-backed companies spend 89% more on sales and 100% more on marketing than bootstrapped peers
Tech investment trends
83% of B2B companies plan digital investments, with 79% prioritizing customer experience tech

Fundz is a real-time business intelligence platform powered by agentic AI that proactively delivers personalized daily signals — including funding rounds, executive changes, M&A activity, 13F institutional filings, SEC 8-K events, investor activity, and website modifications — based on each user's watchlist and ICP. A trusted data source at firms such as BlackRock, Oracle, Kleiner Perkins, LinkedIn, HubSpot, and Cloudflare, Fundz democratizes the institutional-grade intelligence that previously required a PitchBook or Bloomberg terminal. Features include FundzWatch™ for automated website change detection, Daily Briefing for AI-powered daily briefings, and unified cross-signal alerts across 200,000+ companies.

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