United States · 
Who invested in FlatBurger?
FlatBurger's investors include Intersouth Partners and Amplifier.
2007
$1.8MSeed$5.0MSeries AUnited States · Series A startup
Who invested in FlatBurger
2 rounds we have observed, with the 2 investors named in them. 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 5 Nov 2026
$6.8Mraised across 2 rounds since 2006, from 2 sources
$1.8MSeed$5.0MSeries A
- Latest round
- Series A, $5.0MMay 2007
- Step-upi
- 2.9×
- Investors
- 2
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Seed, $1.8M Mar 2006
- Biggest round
- $5.0M Series A · May 2007
- Between rounds
- 14 months from the last two
The rounds
- May 2007
- Mar 2006
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Quick answers about FlatBurger
How much has FlatBurger raised?
FlatBurger has raised $6.8M across 2 rounds since 2006.
When did FlatBurger last raise?
FlatBurger's most recent round was a Series A of $5.0M in May 2007.
What was FlatBurger's biggest round?
Its most recent round, $5.0M in May 2007, is also its largest on record.
Who backed FlatBurger first?
FlatBurger's first round on record, in Mar 2006, was backed by Intersouth Partners and Amplifier.
What stage is FlatBurger at?
FlatBurger's latest named round is a Series A, in May 2007.
Where is FlatBurger based?
FlatBurger is based in the United States.
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