Island
Island develops the Enterprise Browser, a Chromium-based browser with integrated security, control, and governance features for organizations.
Secondary Market Price
Secondary Market Price
How island.io Measures Up
To help you manage your island.io equity, Prospect has run the company through our machine learning model.
Prospect Rating
2X
Based on our data, we rate island.io at 2X, meaning we anticipate its value will at least double over the next four years. For an employee with stock, this rating suggests a strong likelihood that their equity will appreciate in value.
Exit Risk
Very Low Risk
We give Island.io a "Very Low Risk" rating because it is scaling quickly, has fundraised since the market downturn, and is backed by top investors, all of which point to a higher likelihood of an employee liquidity event compared to other startups.
Funding Stage
Series E
A Series E funding round suggests Island.io is a mature company, offering more stability and structure than a brand-new startup. For you, this means joining a well-established team with a proven track record, which often translates to a more predictable work environment.
Secondary Market Price Chart
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Prospect Projected Future island.io Prices
Prospect’s machine learning model has been trained on the same data top-tier investors use to project the likely range of outcomes for island.io's equity. Create a free account to view 10th-90th percentile projections over 2, 4, and 6 years.
Powerful tools to earn more from your equity
Company Description
Island is a technology company that develops and provides a product known as the Enterprise Browser. Based on Chromium, the browser is designed to give organizations centralized control, visibility, and governance over work performed in a web browser. It integrates security and productivity tools directly, allowing administrators to manage data access, prevent data leakage, and secure workflows for employees, contractors, and bring-your-own-device (BYOD) scenarios. The company was founded in 2020 by Michael Fey and Dan Amiga and was previously named Zero Abstraction. Headquartered in Dallas, Texas, Island also maintains a research and development office in Tel Aviv, Israel.
The company is focused on global expansion, investing in research and development to add product capabilities, and educating the market on the enterprise browser category. Island has raised significant capital, with total funding estimated to be between $700 million and $1 billion. A Series E funding round in March 2025 reportedly raised $250 million, with the company's valuation cited at $4.8 billion. The company achieved a $1.3 billion valuation just weeks after its launch in 2022, signaling rapid market interest. Island is also actively patenting technology related to browser security, including methods for kernel-based process protection and defense against man-in-the-middle attacks.
- Sequoia Capital
- Insight Partners
- Coatue
- Georgian
- Capital One Ventures
- Cisco
- Canapi
- Stripe
- Co-Founder, CEO Mike Fey
- Co-Founder, CTO Dan Amiga
Peer Group Comparison
Vs Peer Group of >$4B Startups
Frequently Asked Questions
Joining Anduril as an employee is another way to acquire equity, typically through stock options included in compensation packages.
Is island.io worth joining?
With a $4.8 billion valuation, backing from top investors like Sequoia, and a "Very Low Risk" rating, Island presents a strong profile for potential employees. Platforms like Prospect can help you evaluate an equity offer by providing data-driven insights and comparing it to other high-growth startups.
What should I do with my island.io stock?
Deciding what to do with private company stock is a complex financial decision that depends on your personal circumstances. You can use specialized platforms that offer tools and personalized strategies to help you understand tax implications and model different scenarios for your equity.
Can you sell island.io stock?
As Island is a private company, its stock cannot be sold on public exchanges, but opportunities may arise through secondary markets or company-organized tender offers. Tools from services like Prospect can help you navigate these sales by identifying which shares are most tax-optimal to sell.
How can I find the value of my island.io stock?
The value of private stock is typically based on the company's most recent valuation, which for Island was $4.8 billion. To estimate the potential future worth of your specific holdings, you can use platforms that provide an equity calculator and predictive models based on venture capital data.
What is island.io's equity worth?
Island's most recent valuation places the company's total equity at $4.8 billion, a figure determined during its last funding round. The value of an individual's stake depends on their specific grant, and its potential can be assessed using data on the company’s profile.
What is island.io's stock ticker symbol?
Island is a private company and therefore does not have a stock ticker symbol. Ticker symbols are only assigned to companies whose shares are listed and traded on public stock exchanges.
Can I buy or sell island.io stock?
Since Island is a private company, its stock is not available for purchase or sale on public markets like the NYSE or NASDAQ. Selling shares is generally limited to existing shareholders, such as employees and early investors, during specific liquidity events.
What is the criteria to buy or invest in island.io stock?
Investing in a private company like Island is typically restricted to venture capital firms and accredited investors who meet specific financial thresholds. The company's major investors include institutional firms like Insight Partners and Sequoia Capital.
