# Island closes $400 million Series F at $6.4 billion valuation

_Published Friday, September 25, 2026 at 3:20 AM EDT · Capital, AI · Latest · Tier 2 — Notable_

![Island closes $400 million Series F at $6.4 billion valuation — Primary](https://static.phemex.com/pubimg/5f24b9c7d4a63a9b37534cc0f17bac8297747a09775c6caafd6b97af02f9b372.png)

Enterprise software startup Island has closed a $400 million Series F round led by Evolution Equity Partners, valuing the company at $6.4 billion. Prysm Capital, Sequoia Capital, Coatue Management, Cyberstarts, Insight Partners and JP Morgan Growth Equity Partners also participated.

Island plans to use the capital to develop its enterprise AI infrastructure and expand its market reach as it helps businesses deploy AI agents. The stated uses describe its plans for the funding; they do not establish how much of the round has been spent.

## Sources

- [phemex.com](https://phemex.com/news/article/ai-startup-island-raises-400m-series-f-at-64b-valuation-97738)

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Canonical: https://techandbusiness.org/newswire/83k64jnprUFxTAwPSG191-
Published: 2026-09-25T07:20:06.505Z
Story chronology: 2026-09-24T12:00:00.000Z
Retrieved: 2026-09-25T08:43:29.548Z
Publisher: Tech & Business (techandbusiness.org)