# Island funding rounds and investors

As of 8 Nov 2026, Island has raised $1.1B across 6 verified rounds on record; latest: $400 million Series F led by Evolution Equity, announced 24 Sep 2026.

Island makes an enterprise browser and control plane that secures how employees and AI agents reach business applications and data.

Website: https://island.io  
Headquarters: Dallas, USA  
Page: https://fireround.dev/companies/island

## Verified rounds

| Announced | Round | Amount | Lead investors | Other investors | Sources |
| --- | --- | --- | --- | --- | --- |
| 2026-09-24 | Series F | $400 million | Evolution Equity | Alta Park Capital, Coatue, Cyberstarts, Dmitri Alperovitch, Georgian, G Squared, Insight Partners, J.P. Morgan Growth Equity Partners, Prysm Capital, Sequoia Capital, Squarepoint Capital | [island.io](https://www.island.io/press/island-announces-400-million-series-f-bringing-valuation-to-6-4-billion), [island.io](https://www.island.io/press/new-island-enterprise-platform), [globenewswire.com](https://www.globenewswire.com/de/news-release/2026/09/24/3368154/0/en/island-announces-400-million-series-f-bringing-valuation-to-6-4-billion.html) |
| 2025-03-26 | Series E | $250 million | Coatue | Insight Partners, Sequoia Capital, Canapi Ventures | [island.io](https://www.island.io/press/island-secures-250-million-as-valuation-continues-to-soar-to-nearly-5-billion), [businesswire.com](https://www.businesswire.com/news/home/20250326755283/en/Island-Secures-%24250-Million-as-Valuation-Continues-to-Soar-to-Nearly-%245-Billion), [techcrunch.com](https://techcrunch.com/2025/03/26/island-lands-250m-in-funding-at-a-4-8b-valuation) |
| 2024-04-30 | Series D | $175 million | Coatue, Sequoia Capital | none named | [island.io](https://www.island.io/press/island-raises-175-million-in-series-d-funding), [techcrunch.com](https://techcrunch.com/2024/04/30/island-secure-enterprise-browser-lands-175m-3b-valuation), [reuters.com](https://www.reuters.com/technology/island-hits-3-billion-valuation-after-latest-fund-raise-2024-04-30) |
| 2023-10-23 | Series C | $100 million | Prysm Capital | Canapi Ventures, Insight Partners, Stripes, Sequoia Capital, Cyberstarts, Georgian | [island.io](https://www.island.io/press/island-raises-100-million-in-series-c-funding) |
| 2022-11-10 | Series B extension | $60 million | Georgian | none named | [island.io](https://www.island.io/press/island-extends-its-series-b-with-an-additional-60m-investment), [businessinsider.com](https://www.businessinsider.com/island-enterprise-browser-startup-brings-in-60m-funding-extension-2022-11), [venturecapitaljournal.com](https://www.venturecapitaljournal.com/web-browser-island-picks-up-60m-series-b-extension) |
| 2022-03-23 | Series B | $115 million | Insight Partners | Stripes, Sequoia Capital | [island.io](https://www.island.io/press/island-raises-115-million-in-series-b-funding-to-enable-massive-innovation-on-enterprise-browser) |

Source: Fireround (https://fireround.dev), an open-source funding feed. Each round is checked against the pages listed with it.