Island
PrivateLast Round
Series F
Sep 24, 2026
Est. Valuation
$6.4B
Total Funding Raised
$1.2B
Momentum
Top 1%
of companies Caplight tracks
Company Overview
Island is a cybersecurity company that provides an enterprise browser platform designed to offer organizations comprehensive control, visibility, and security over their digital environments.
Sector
Cybersecurity
Verticals
Cloud Security, Zero Trust, Application Security
Business Model
B2B
Customer Profile
Subscription SaaS, Services & Consulting
AI Layer
Application
Keywords
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Island Comparables
Compare Island with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Netskope | 88% | |
| Palo Alto Networks | 84% | |
| Menlo Security | 81% |
Island Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series F | Sep 24, 2026 | ||||
| Series E | Mar 26, 2025 | ||||
| Series D | Apr 30, 2024 | ||||
| Series C | Oct 23, 2023 | ||||
| Series B Extension | Nov 10, 2022 | ||||
Series B | Mar 23, 2022 |
Key People
Founding team and executive leadership
Island Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Geodesic Capital | Series E |
| Citi Ventures | Series D, Series E |
| Georgian | Series A, Series B, Series D, Series C, Series E, Series F, Series B Extension |
| Cyberstarts | Series A, Series B, Series D, Series C, Series E, Series F |
| FUSION | Series A |
| Stripes | Series A, Series B, Series D, Series C, Series E |
| Squarepoint Ventures | Series F |
Market signals
Structured signals derived from secondary market and firmographic data.
- Sep 24, 2026
$400M round led by Evolution Equity Partners.
- Apr 25, 2026
Product integrations with Forcepoint for DLP announced.
Recent news
Latest coverage and updates
- identified_as_competitor_ofSep 24, 2026
Island identified as competitor of Palo Alto Networks, Inc..
- has_valuationSep 24, 2026
Island Inc. had valuation of $4.8B on Mar 1st '25.
- has_valuationSep 24, 2026
Island Inc. reaches a $6.4B valuation in Texas on Sep 24th '26
- receives_financingSep 24, 2026
Island Inc. receives $400M Series F financing in Texas on Sep 24th '26
- expands_offices_toSep 24, 2026
Island expanded offices to Europe on Sep 24th '26.
Island Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
Request accessAppears On
Curated lists and screens where this company is featured.
Frequently Asked Questions
Common questions about Island's valuation, stock price, and market status.
Is Island a public or private company?
Island is a private company.
What is the current stock price of Island?
Island is a private company, so its shares have no public market price. Caplight tracks Island's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Island worth (valuation)?
Island's valuation is estimated at $6.4B based on funding round data.
Can I buy Island stock?
Island shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Island's last funding round?
Island's most recent funding round was Series F on September 24, 2026.
Who are the main investors in Island?
Key investors in Island include Georgian, Sequoia Capital, Evolution Equity Partners, Prysm Capital, Coatue Management.
Will Island IPO soon?
No public IPO plans have been announced for Island.
How can I track Island secondary market activity?
Caplight tracks bids, offers, and trades in Island's shares on secondary markets.