United States · 
Who invested in Interface21?
Interface21's investors include Benchmark.
United States · Series A startup
Who invested in Interface21
One round we have observed, with the one investor named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
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Funding summaryUpdated 15 Nov 2026
$10Mraised across 1 round since 2007, from 1 source
- Latest round
- Series A, $10MMay 2007
- Investors
- 1
The rounds
- May 2007
Everyone who backed them
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Quick answers about Interface21
How much has Interface21 raised?
Interface21 has raised $10M across 1 round since 2007.
When did Interface21 last raise?
Interface21's most recent round was a Series A of $10M in May 2007.
What was Interface21's biggest round?
Its most recent round, $10M in May 2007, is also its largest on record.
Who backed Interface21 first?
Interface21's first round on record, in May 2007, was backed by Benchmark.
What stage is Interface21 at?
Interface21's latest named round is a Series A, in May 2007.
Where is Interface21 based?
Interface21 is based in the United States.
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