Island
PrivateLast Round
Series E
Mar 26, 2025
Est. Valuation
$4.8B
Total Funding Raised
$800M
Momentum
Top 50%
of companies Caplight tracks
Company Overview
Island is a cybersecurity and enterprise software company that offers a browser platform enabling secure and efficient workflows while providing organizations with comprehensive control and visibility over their digital environments.
Sector
Cybersecurity
Verticals
Application Security, Cloud Security, Endpoint Security, Zero Trust, Identity & Access
Business Model
B2B
Customer Profile
Subscription SaaS
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 |
|---|---|---|
| Palo Alto Networks | 84% | |
| Menlo Security | 83% | |
| Cloud Software Group | 80% |
Island Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| 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 | ||||
Series A | Jan 19, 2022 |
Key People
Founding team and executive leadership
Island Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Citi Ventures | Series D, Series E |
| Georgian | Series A, Series B, Series D, Series C, Series E, Series B Extension |
| Cyberstarts | Series A, Series B, Series D, Series C, Series E |
| FUSION | Series A |
| Stripes | Series A, Series B, Series D, Series C, Series E |
| EDBI | Series D, Series E |
| Sequoia Capital | Series A, Series B, Series C, Series E, Series D |
Market signals
Structured signals derived from secondary market and firmographic data.
- Apr 25, 2026
Product integrations with Forcepoint for DLP announced.
- Apr 25, 2026
Product integrations with Symantec for DLP announced.
Recent news
Latest coverage and updates
- identified_as_competitor_ofSep 24, 2026
Island identified as competitor of Palo Alto Networks, Inc..
- expands_offices_toSep 24, 2026
Island expanded offices to Asia on Sep 24th '26.
- has_valuationSep 24, 2026
Island Inc. had valuation of $6.4B on Mar 1st '25.
- receives_financingSep 24, 2026
Island Inc. received financing of $400M in Series F 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 with no public stock price. No recent secondary market data is available.
How much is Island worth (valuation)?
Island's valuation is estimated at $4.8B 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. Visit https://www.caplight.com to learn more.
When was Island's last funding round?
Island's most recent funding round was Series E on March 26, 2025.
Who are the main investors in Island?
Key investors in Island include Georgian, Sequoia Capital, Prysm Capital, Coatue Management, Insight Partners.
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 for private companies. Visit https://www.caplight.com to monitor Island's secondary market activity and sign up for updates.