Funding round
Island Series E
Island, which works in enterprise browser software development in Coppell, raised $250M in a Series E round announced on 26 Mar 2025, led by Coatue, at a $4.80B post-money valuation. 13 firms took part, 13 of them already investors. It is Island's fourth venture round on record; the one before was a Series D in Apr 2024.
$250M
Amount raised
$4.80B
Post-money valuation
13
Investors
1 lead
1.6x
Step-up from the Series D
$3.00B in Apr 2024
5.2%
Stake sold
new money over the post-money
Valuation
What this round says about the price
This round priced Island at $4.80B after the new money, 1.6 times the $3.00B of its Series D (Apr 2024). The $250M bought investors about 5.2% of the company. It came 11 months after Island's Series D. It is 24% of the $1.04B Island has raised in the venture rounds on record. Island raised again 18 months later: a Series F round of $400M in Sep 2026, at $6.40B post-money.
Island's funding rounds
Island has 5 venture rounds on record. This one is highlighted.
- Series B 23 Mar 2022, led by Insight Partners $115M$1.30B post-money
- Series C 23 Oct 2023, led by Prysm Capital $100M$1.50B post-money
- Series D 30 Apr 2024 $175M$3.00B post-money
- Series E this round 26 Mar 2025, led by Coatue $250M$4.80B post-money
- Series F 24 Sep 2026, led by Evolution Equity Partners $400M$6.40B post-money
Investors
Who put money in
Coatue led the round with 12 other firms. Coatue, Canapi Ventures, Capital One Ventures and Cisco Investments and 9 more had backed Island before.
Lead investor
- Coatue backs 229 venture-backed companies existing investor
Also in the round
- Canapi Ventures existing investor
- Capital One Ventures existing investor
- backs 80 venture-backed companies existing investor
- Citi Ventures existing investor
- backs 21 venture-backed companies existing investor
- EDBI backs 67 venture-backed companies existing investor
- backs 54 venture-backed companies existing investor
- Insight Partners backs 548 venture-backed companies existing investor
- backs 18 venture-backed companies existing investor
- Sequoia Capital backs 589 venture-backed companies existing investor
- ServiceNow Ventures existing investor
- Stripes backs 101 venture-backed companies existing investor
Use of proceeds
What the money is for
According to the announcement, the money goes to hiring, product development, scaling operations and working capital.
- Hiring
- Product development
- Scaling operations
- Working capital
Comparable rounds
How it compares
43 Series E rounds in Tech Companies within a year either side disclosed an amount; the median was $200M, and this round was 1.3 times the median. The closest in time, other companies' Series E rounds in Tech Companies:
| Company | Announced | Amount | Post-money | Led by |
|---|---|---|---|---|
| Anthropic Tech Companies | 3 Mar 2025 | $3.50B | $61.50B | Lightspeed Venture Partners |
| Tech Companies | 4 Mar 2025 | $126M | not disclosed | B Capital and Banc of California |
| ThreatLocker Tech Companies | 10 Apr 2025 | $60M | $1.20B | not named |
| Perplexity Tech Companies | 14 May 2025 | $500M | $14.00B | Accel |
| Whatnot Tech Companies | 10 Jan 2025 | $265M | $4.97B | Greycroft and DST Global |
| Perk Tech Companies | 28 Jan 2025 | $200M | $2.70B | Atomico and EQT |
| Tech Companies | 14 Jan 2025 | $40M | not disclosed | Health Care Service Corporation |
| Tech Companies | 14 Jan 2025 | $40M | not disclosed | Health Care Service Corporation |
Sources
Where this comes from
Reported by 4 sources.
Questions
Frequently asked
How much did Island raise in its Series E round?
Island raised $250M in its Series E round, announced in Mar 2025.
Who led Island's Series E round?
Coatue led it, with Canapi Ventures, Capital One Ventures, Cisco Investments, Citi Ventures and Cyberstarts and 7 more.
What was Island's valuation at the Series E round?
$4.80B post-money.
How does it compare with other Series E rounds in Tech Companies?
43 Series E rounds in Tech Companies within a year either side disclosed an amount; the median was $200M, and this round was 1.3 times the median.
Did Island raise again after this round?
Yes: a Series F round in Sep 2026 of $400M at $6.40B post-money.