Island Funding: $810M Raised, Series E (2025)

Island is a Cybersecurity company based in Dallas, Texas. It has raised $810M in total funding. Latest round: Series E.

Island funding overview

Island is a Cybersecurity company based in Dallas, Texas. Island has raised $810M in total disclosed funding. That places its disclosed total in the $250M–$1B range. Its most recent disclosed round is a Series E announced in March 2025. The round record for Island runs through 2025; nothing later has been disclosed. Investors on record include Insight Partners, Sequoia Capital, Stripes, Cisco Investments, Coatue, Georgian and 5 others. 11 distinct backers are named across the disclosed rounds.

Island at a glance

Total raised
$810M
Latest round
Series E
Latest round date
March 2025
Industry
Cybersecurity
Headquarters
Dallas, Texas
Notable investors
Insight Partners, Sequoia Capital, Stripes, Cisco Investments, Coatue, Georgian, Cyberstarts, Palo Alto Networks

Frequently asked about Island funding

How much has Island raised?
Island has raised $810M in total disclosed funding across the rounds on record.
Who has invested in Island?
Insight Partners, Sequoia Capital, Stripes, Cisco Investments, Coatue, Georgian are named among the investors backing Island.
What was the latest Island funding round?
The most recent disclosed round is a Series E, announced in March 2025.
Where is Island based?
Island is based in Dallas, Texas.
What sector does Island operate in?
Island is tracked under Cybersecurity from Dallas, Texas, with $810M in disclosed funding.
When did Island last raise?
The last disclosed Island round closed in March 2025 at Series E.

Island totals reflect disclosed capital only — undisclosed extensions and secondaries are excluded. Use the related Cybersecurity companies in Dallas below to benchmark round size and investor mix.

Island pitch deck

The investor deck Island used to raise — 2022, Series B, 11-slide deck is broken down slide by slide, including the slides it leads with and the questions it leaves open.

Island founders (2)

Companies related to Island (40)

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•By Alejandro Cremades