Island Valuation, Funding & Investors
Island is valued at $4.8B as of March 2025.
Last Island valuation
$4.8B
Series E · Mar 2025
Last Island funding round
$250M
Series E · Mar 2025
Cumulative funding Island raised
$810M
across 7 funding rounds
Key investors in Island
Sequoia Capital
Insight Partners
Stripes
Cyberstarts
Georgian
Coatue
About Island
Island is a San Francisco-headquartered cybersecurity firm developing an enterprise web browser. Launched in 2019, its platform enforces zero-trust isolation for web apps, preventing malware and data exfiltration on employee devices. Adopted by Fortune 500 companies like Block and Snowflake, it integrates with MDM tools for policy enforcement across macOS, Windows, and ChromeOS fleets.
Founded
2020
HQ
Dallas, TXWebsite
Status
Privately held
Customer focus
B2B
Revenue model
Subscription
Valuation
$4.8B (Mar 2025)
Island Valuation
Island is currently valued at $4.8B, based on its Series E in March 2025.
The $250M round was led by Coatue, with participation from Georgian, JPMorgan Growth Equity Partners, Canapi Ventures, Geodesic Capital, Cyberstarts and 2 other investors.
Island's valuation has grown 3.7x from $1.3B at its Series A in February 2022 to $4.8B in March 2025, across 7 priced rounds.
Island valuation by funding round
| Date | Stage | Valuation |
|---|---|---|
| Mar 2025 | Series E | $4.8B |
| Apr 2024 | Series D | $3B |
| Oct 2023 | Series C | $1.5B |
| Nov 2022 | Series B | $1.3B |
| Jul 2022 | Series B | $1.3B |
| Mar 2022 | Series B | $1.3B |
| Feb 2022 | Series A | $1.3B |
Island Funding History
Island has raised a total of $810M across 7 funding rounds.
Island's first fundraising round was a $100M Series A in February 2022. The most recent completed round was a $250M Series E in March 2025.
Island funding rounds
| Date | Stage | Investors | Raised | Valuation | Deal Summary |
|---|---|---|---|---|---|
| Mar 2025 | Series E | Coatue (lead); Georgian; JPMorgan Growth Equity Partners; Canapi Ventures; Geodesic Capital; Cyberstarts; Sequoia Capital; Insight Partners | $250M | $4.8B | Island is a Dallas-based cybersecurity startup founded in 2020 that develops the Enterprise Browser, a secure browser designed for enterprises to enhance security, productivity, and IT control by embedding IT, security, and productivity features directly into the browser. It provides universal application access control, device visibility, management, and automation, serving sectors like defense, financial services, government, higher education, hospitality, manufacturing, and retail. The browser modernizes IT stacks, simplifies complexity, and protects against modern threats amid rising AI adoption. On March 26, 2025, Island raised $250 million in a Series E funding round led by Coatue Management, with participation from existing investors including Insight Partners, Sequoia Capital, Canapi Ventures, Cyberstarts, Georgian, and others such as Capital One Ventures, Citi Ventures, and J.P. Morgan Growth Equity Partners. This round brings total funding to approximately $730 million. The post-money valuation reached $4.8 billion, up from $2.9-3 billion in the April 2024 Series D ($175 million), $1.5 billion in the October 2023 Series C ($100 million), and $1.3 billion in the March 2022 Series B ($115 million). The funding will support scaling product development and talent acquisition to meet enterprise demands. Island employs over 450 people, with 200 in Tel Aviv led by CTO Dan Amiga. CEO Mike Fey emphasized the Enterprise Browser's role in upgrading consumer browsers for enterprise use, driving value for knowledge workers, IT, and security teams. Coatue's David Schneider highlighted Island's execution and its establishment of a new standard in secure environments. This round reflects strong investor confidence in Island's growth trajectory, with valuation more than quadrupling since October 2023 amid growing demand for secure enterprise browsers. It positions Island competitively in cybersecurity, especially post major deals like Alphabet's Wiz acquisition, amid rising cyber venture funding. |
| Apr 2024 | Series D | Coatue (lead); Sequoia Capital (lead); Capital One Ventures; Cyberstarts; Citi Ventures; Insight Partners | $175M | $3B | Island is a cybersecurity company developing the Enterprise Browser, a secure browser that integrates productivity, IT management, and security features, replacing tools like VPNs, data loss prevention, and mobile device management to reduce costs and complexity for enterprises. It targets knowledge workers, IT/security teams across Fortune 1000 companies, midmarket firms, government, and education, emerging from stealth in February 2022 with around 200-450 customers by 2024-2025 and approximately 500 employees, half in product/engineering. On April 30, 2024, Island raised $175 million in a Series D growth funding round led by Coatue and Sequoia Capital, with participation from Capital One Ventures, Citi Ventures, Cyberstarts, Insight Partners, and others, doubling the company's post-money valuation to $3 billion from $1.5 billion in the prior October 2023 Series C. This brought total funding to around $487 million at that time. CEO Mike Fey highlighted the browser's role in IT modernization, emphasizing ROI through simplified stacks and embedded security. Traction includes steady customer growth to about 200 by April 2024, described as exponential, with annual recurring revenue more than doubling each year since 2022, reaching 'decent' and 'meaningful' ARR levels with good margins, positioning Island as an IPO candidate in the future. The company defines a new enterprise browser category amid rising demand for secure browsing solutions. A subsequent $250 million Series E round in March 2025, led by Coatue with existing investors, valued Island at $4.8 billion (nearing $5 billion), bringing total funding to $730 million and enabling further product scaling and talent acquisition. |
| Oct 2023 | Series C | Prysm Capital (lead); Georgian; Canapi Ventures; Cyberstarts; Sequoia Capital; Insight Partners; Stripes | $100M | $1.5B | Island is a cybersecurity startup founded in 2020 by Dan Amiga and Mike Fey, headquartered in Dallas, Texas, with operations in Tel Aviv. The company develops the Island Enterprise Browser, a secure browser for enterprise use that provides malware and phishing protection, ad and tracker blocking, and supports BYOD, work-from-anywhere, and contractor access patterns. It enhances workforce productivity and user experience while protecting users and data at the point of interaction with SaaS and internal web applications. Gartner highlights enterprise browsers as evolving into the core platform for enterprise productivity and security software. On October 23, 2023, Island raised $100 million in a Series C funding round led by Prysm Capital, with participation from Canapi Ventures and existing investors Insight Partners, Stripes, Sequoia Capital, Cyberstarts, and Georgian. This round increased the company's post-money valuation to $1.5 billion, up from $1.3 billion in its March 2022 Series B where it raised $115 million. Total funding raised exceeded $325 million. Investors praised Island's product-market fit, leadership in the high-growth enterprise browser market, and success with large enterprises including Fortune 100 customers. Island reported selling over 2 million browsers to customers across major verticals and segments. The funding supports global scaling, R&D investment, customer success, and geographic expansion. CEO Mike Fey noted the capital infusion accelerates growth amid strong performance despite market headwinds. The company employs around 220 people and continues to innovate, such as introducing Self-Protection for its browser in May prior to the round. |
| Nov 2022 | Series B | Georgian (lead); Cisco Investments; Sequoia Capital; Insight Partners; Stripes | $60M | $1.3B | Island is a cybersecurity company that pioneered the enterprise browser, providing a secure, enterprise-ready web browser to replace consumer browsers for knowledge workers, IT departments, and security teams. It improves productivity, simplifies IT stacks, reduces complexity, and embeds security features, with additional offerings in generative AI data loss prevention (DLP) and ancillary services like integration and training. The company emerged from stealth in February 2022 and quickly gained traction with Fortune 100 enterprises, banks, hotels, retailers, government agencies, and higher education institutions, securing over 450 customers worldwide by 2025. In 2022, Island raised four funding rounds in a compressed 10-month period: a $100 million Series A in February led by Insight Partners, a $115 million Series B in March also led by Insight Partners, a $10 million Series B top-up in July led by Cisco Investments, and a $60 million Series B extension in November led by Georgian with participation from Cisco Investments, Insight Partners, Sequoia Capital, and Stripes. These rounds brought total funding to around $285 million by late 2022, with motivations including product launch, market expansion, strategic partnerships, and customer base growth. The company grew to approximately 500 employees by mid-2025, with over 200 in engineering and product. Subsequent rounds included a $175 million Series D in 2024 led by Coatue and Sequoia, valuing Island at $3 billion (total funding ~$487 million), and a $250 million Series E in March 2025 led by Coatue, reaching $4.8 billion valuation and ~$730-810 million total raised. Island holds an estimated 15% share of the secure enterprise browser market as of 2025, with its valuation trajectory linked to revenue growth amid a 2022 SaaS valuation crash that affected public peers. |
| Jul 2022 | Series B | Cisco Investments (lead) | $10M | $1.3B | Island is an enterprise-focused cybersecurity company that developed a Chromium-based secure browser designed specifically for enterprise use. The Enterprise Browser embeds security, IT, and productivity tools directly into the browsing experience, providing organizations with complete control over the last mile of user interaction with SaaS and web applications. Founded by Mike Fey and Dan Amiga, Island officially launched from stealth in February 2022 after developing its core technology. In March 2022, Island closed a $115 million Series B funding round led by Insight Partners at a $1.3 billion post-money valuation, with participation from existing investors Stripes and Sequoia Capital. In July 2022, Cisco Investments joined the company as a strategic investor with an additional $10 million investment as part of a Series B extension, supplementing the earlier round. By the time of later funding rounds, Island had demonstrated strong commercial traction with 450+ customers spanning Fortune 1000 firms, mid-sized businesses, government bodies, and academic institutions, and reported that its annual recurring revenue was doubling year-over-year. |
| Mar 2022 | Series B | Insight Partners (lead); Sequoia Capital; Stripes | $115M | $1.3B | Island is a cybersecurity startup that develops the Enterprise Browser, a Chromium-based browser designed for enterprise use, embedding security, IT, and productivity tools to provide secure access to applications, reduce IT complexity, and enhance productivity for knowledge workers. Founded in 2020 by CEO Mike Fey and CTO Dan Amiga, with operations in Dallas and Tel Aviv, the company emerged from stealth in February 2022. In March 2022, Island announced a $115 million Series B funding round led by Insight Partners, achieving a post-money valuation of $1.3 billion and unicorn status just seven weeks after launch, with participation from investors including Sequoia Capital and Stripes. The Series B round highlighted early investor confidence in Island's unique value proposition of transforming standard browsers into secure enterprise solutions to combat cyber threats. This funding came shortly after the company's public debut, underscoring rapid traction in the enterprise market. Subsequent rounds built on this foundation, including a $100 million Series C in October 2023 at $1.5 billion valuation led by Prysm Capital, a $175 million Series D in April 2024 at around $3 billion co-led by Sequoia and Coatue, and a $250 million Series E in March 2025 at approximately $4.8 billion led by Coatue, bringing total funding to about $730-750 million. Island has demonstrated strong growth post-Series B, signing 450 customers including Fortune 100 firms, Mattress Firm, Swiss Life, Fiverr, and organizations in defense, financial services, government, and other sectors. The company reports annual recurring revenue more than doubling each year since launch, employs around 500 people with over 200 in R&D, and positions itself as a cornerstone for IT modernization amid rising AI adoption and cybersecurity demands. |
| Feb 2022 | Series A | Insight Partners (lead); Cyberstarts; Sequoia Capital; Stripes; Cerca Partners | $100M | $1.3B | Island is a Dallas-based cybersecurity startup founded in 2020 that develops an enterprise browser designed to provide superior security compared to consumer browsers like Safari and Chrome, targeting enterprise customers across industries. The company emerged from stealth in February 2022 with a $100 million Series A round led by Sequoia and Insight Partners, followed quickly by a $115 million Series B in March 2022 led by Insight Partners with participation from Stripes and Sequoia, valuing Island at a $1.3 billion post-money unicorn valuation and bringing total funding to over $215 million at that point. This rapid second raise in 2022 reflected strong early customer demand and product scalability, as noted by CEO Michael Fey, with the funding aimed at expanding headcount from 120 to 200 employees, opening a London office for EMEA growth, and accelerating R&D and innovation in enterprise browsing security. Investors highlighted Island's market traction and potential to lead the enterprise browser category amid rising cybersecurity needs. Subsequent rounds included a Series C in October 2023 raising $100 million at $1.5 billion valuation led by Prysm Capital with Canapi Ventures and existing backers like Insight, Stripes, Sequoia, Cyberstarts, and Georgian, by which point Island had sold over 2 million browsers to Fortune 100 customers. |
Who has invested in Island?
14 investors have backed Island across its funding rounds, including Sequoia Capital, Insight Partners, Stripes, Cyberstarts, Georgian and Coatue.
Lead investors include Coatue, Sequoia Capital, Prysm Capital, Georgian, Cisco Investments and 1 other investor.
Island Investors
| Investor | HQ | Rounds | Role | First check |
|---|---|---|---|---|
| San Francisco, CA | 6 | Lead | Feb 2022 | |
| New York City, NY | 6 | Lead | Feb 2022 | |
 Tel Aviv | 4 | Participant | Feb 2022 | |
| New York City, NY | 4 | Participant | Feb 2022 | |
 Toronto | 3 | Lead | Nov 2022 | |
| Wilmington, DE | 2 | Participant | Oct 2023 | |
| United States | 2 | Lead | Jul 2022 | |
| New York City, NY | 2 | Lead | Apr 2024 | |
| New York City, NY | 1 | Participant | Mar 2025 | |
| San Francisco, CA | 1 | Participant | Mar 2025 | |
| Princeton, NJ | 1 | Lead | Oct 2023 | |
| San Francisco, CA | 1 | Participant | Apr 2024 | |
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Start Free TrialIsland Competitors
Island competitors include listed companies like Box and BlackBerry, and private ones like Cato Networks, Sysdig, Aviatrix and Coalition.
| Company | HQ | Status | Revenue | EBITDA | Valuation | Revenue Multiple |
|---|---|---|---|---|---|---|
| Tel Aviv | Private | $300M | - | $4.8B | 16.0x | |
| San Francisco, CA | Private | - | - | $2.5B | - | |
| San Jose, CA | Private | $40M | - | $2B | 50.0x | |
| United States | Publicly listed | $1.2B | $124M | $4.8B | 4.3x | |
| Canada | Publicly listed | $549M | $83M | $4.7B | 7.8x | |
| San Francisco, CA | Private | $325M | - | $5B | - |
Island Public Comps
Island is still privately-owned, but its public comps include Box, BlackBerry, IONOS Group, Trend Micro, United Internet, Clear Secure, Varonis Systems, Wangsu, Glory View Technology and Tenable.
| Last FY | EV/Revenue | EV/EBITDA | ||||||
|---|---|---|---|---|---|---|---|---|
| Revenue | EBITDA | Last FY | LTM | 2027E | Last FY | LTM | 2027E | |
| $1.2B | $124M | 4.5x | 4.3x | 43.0x | 13.8x | |||
| $549M | $83M | 8.3x | 7.8x | 54.9x | 36.6x | |||
| $1.5B | $522M | 4.1x | 3.9x | 11.8x | 10.5x | |||
| $1.8B | $488M | 2.2x | 2.1x | 8.0x | 8.1x | |||
| $7B | $1.5B | 1.4x | 1.4x | 6.8x | 6.4x | |||
| $901M | $216M | 3.7x | 3.2x | 15.3x | 9.5x | |||
| $624M | ($147M) | 8.5x | 7.5x | (36.0x) | 229.5x | |||
| $695M | $138M | 6.4x | 6.0x | 32.6x | 30.5x | |||
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Common questions about Island
| When was Island founded? | Island was founded in 2020. |
| Where is Island headquartered? | Island is headquartered in Dallas, TX, United States. |
| Is Island publicly listed? | No, Island is a private, VC-backed company. |
| What is Island's valuation? | Island was last valued at $4.8B in its Series E in March 2025. |
| How much funding has Island raised? | Island has raised $810M across 7 funding rounds. |
| What was Island's last funding round? | Island's last funding round was a $250M Series E in March 2025, led by Coatue. |
| Who are Island's investors? | Island's investors include Sequoia Capital, Insight Partners, Cyberstarts, Stripes, Georgian, Canapi Ventures, Cisco Investments, Coatue, JPMorgan Growth Equity Partners, Geodesic Capital and 4 others. |
| Which companies are comparable to Island? | Companies comparable to Island include Cato Networks, Sysdig, Aviatrix, Box, BlackBerry and Coalition. |
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