Island Current · Verified less than 14 days ago · Last verified: Oct 6, 2026

Island: $1.3B valuation, IPO Readiness 62, Series D. Island is the enterprise browser providing secure, managed access to all business applications with built-in d. Track live on The IPO Stack.

Series DCybersecurityprivate
62
/100
IPO Readiness Score
Grade C — Moderate IPO Readiness
TechStackIPO proprietary score based on funding scale, valuation, stage progression & momentum.
Track Island →

Island is the enterprise browser providing secure, managed access to all business applications with built-in data loss prevention, zero trust enforcement, and granular access controls. Valued at $1.3B with $200M raised, Island serves Fortune 500 companies and competes with Zscaler, Palo Alto Networks, and Menlo Security in the $50B+ secure access service edge (SASE) market. Major defensetech IPO candidate as enterprises replace traditional VPNs with enterprise browsers for secure remote access.

Valuation
$1.3B
Total Funding
$485M
Stage
Series D
Sector
Cybersecurity
Headquarters
Dallas, TX
CEO
Mike Fey
IPO Status
private

Funding History

September 2020
Series A
$15M
February 2022
Series B
$115M
August 2023
Series C
$175M
October 2026
Series D
$115M
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Track Island IPO timeline, funding rounds, investor activity, and valuation on TechStackIPO — the pre-IPO intelligence platform.

Frequently Asked Questions

When is Island going public? +

Island has not publicly announced IPO plans. Track TechStackIPO for the latest signals and subscribe to The IPO Stack for weekly updates.

What is Island's current valuation? +

Island is valued at $1.3B as of August 2023. This valuation is based on its most recent private funding round tracked by TechStackIPO.

How can I invest in Island before IPO? +

Accredited investors can access Island shares through secondary market platforms, pre-IPO investment funds, and broker-dealer platforms that facilitate private company transactions. TechStackIPO's marketplace tracks available access options. Note: pre-IPO investments carry higher risk and limited liquidity compared to public market investing.

What is Island's IPO Readiness Score? +

Island scores 62/100 (Grade: C) on TechStackIPO's IPO Readiness Index. The score evaluates funding scale, valuation trajectory, funding momentum, stage progression, and company maturity. Scores above 70 indicate strong near-term IPO potential.

How much total funding has Island raised? +

Island has raised $485M in total venture capital and private equity funding, with backing from Insight Partners, Sequoia Capital, Coatue.

Who are Island's key investors? +

Island's notable investors include Insight Partners, Sequoia Capital, Coatue. Full investor details, funding round history, and lead investor breakdowns are available on TechStackIPO.

What sector is Island in? +

Island is a Cybersecurity company. Island is the enterprise browser providing secure, managed access to all business applications with built-in data loss p.

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