15Five vs Island: Revenue, Funding & Team Size Compared
15Five generates $99M in revenue; Island generates $87M. 15Five and Island are close to the same size by revenue. The table below compares 15Five and Island on funding, valuation, customers, team size and headquarters — every figure GetLatka has verified for each company.
| Company |  15FiveThis company |  Island |
|---|---|---|
| Revenue | $99M | $87M |
| Valuation | $130M | $4.8B |
| Funding raised | $42.1M | $540M |
| Customers | 3.5K | 200 |
| Team size | 449 | 975 |
| Founded | 2011 | 2020 |
| HQ | San Francisco, United States | Dallas, United States |
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15Five at a glance
15Five generates $99M in revenue with 449 employees, headquartered in San Francisco, United States.
- Revenue
- $99M
- Valuation
- $130M
- Funding
- $42.1M
- Customers
- 3.5K
- Team size
- 449
- Founded
- 2011
15Five is a performance management software that helps companies improve employee engagement, track progress, and provide feedback.
Island at a glance
Island generates $87M in revenue with 975 employees, headquartered in Dallas, United States.
- Revenue
- $87M
- Valuation
- $4.8B
- Funding
- $540M
- Customers
- 200
- Team size
- 975
- Founded
- 2020
What if the enterprise had complete control over the browser? What would it mean for security, productivity, and work itself? Introducing Island, the Enterprise Browser - the ultimate workplace solution where work flows freely while…
Other 15Five alternatives
15Five competes with more than the companies on this page. Browse the full alternative lists to compare revenue, funding and team size across the category.
15Five vs Island: frequently asked questions
Is 15Five or Island bigger?
15Five is the bigger company by revenue, at $99M against $87M for Island.
How much revenue does 15Five make?
15Five generates $99M in annual revenue with a team of 449.
How much revenue does Island make?
Island generates $87M in annual revenue with a team of 975.
How much funding has 15Five raised?
15Five has raised $42.1M in total funding since it was founded in 2011.
How much funding has Island raised?
Island has raised $540M in total funding since it was founded in 2020.