United States · 
Who invested in IronPort Systems?
IronPort Systems's investors include New Enterprise Associates, First Round Capital, Menlo Ventures, Peter Thiel and Allegis Capital, and 3 more on record.
20032004
$17MSeries B$45MSeries DUnited States · Series D startup
Who invested in IronPort Systems
2 rounds we have observed, with the 8 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.
Funding summaryUpdated 26 Oct 2026
$62Mraised across 2 rounds since 2002, from 2 sources
$17MSeries B$45MSeries D
- Latest round
- Series D, $45MOct 2004
- Step-upi
- 2.7×
- Investors
- 8
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series B, $17M Jun 2002
- Biggest round
- $45M Series D · Oct 2004
- Between rounds
- 2.3 years from the last two
The rounds
- Oct 2004
- Jun 2002Series B$17M7 new
Reported by ironport.com
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.
The exit
ExitBuyerPriceWhen
From historical deal records. Wrong? Tell us.
Everyone who backed them
Peter ThielAngel1round
Max LevchinVC firm1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about IronPort Systems
How much has IronPort Systems raised?
IronPort Systems has raised $62M across 2 rounds since 2002.
When did IronPort Systems last raise?
IronPort Systems's most recent round was a Series D of $45M in Oct 2004.
What was IronPort Systems's biggest round?
Its most recent round, $45M in Oct 2004, is also its largest on record.
Who backed IronPort Systems first?
IronPort Systems's first round on record, in Jun 2002, was backed by First Round Capital, Menlo Ventures and Peter Thiel and 4 others.
What stage is IronPort Systems at?
IronPort Systems's latest named round is a Series D, in Oct 2004.
Where is IronPort Systems based?
IronPort Systems is based in the United States.
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