Who invested in Reef?
Reef's investors include 3i Group, Cisco, The Carlyle Group, IDG Ventures USA and Viventures, and 4 more on record.
200020012002
$13MVenture$26MSeries C
Who invested in Reef
Funding summaryUpdated 26 Oct 2026
$39Mraised across 2 rounds since 1999, from 2 sources
$13MVenture$26MSeries C
- Latest round
- Series C, $26MFeb 2002
- Step-upi
- 2×
- Investors
- 9
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Venture, $13M Nov 1999
- Biggest round
- $26M Series C · Feb 2002
- Between rounds
- 2.3 years from the last two
The rounds
- Feb 2002Series C$26M6 new
From a historical funding record
- Nov 1999
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
CiscoCorporate VC1round
IDG Ventures USAVC firm1round
ViventuresVC firm1round
SG CowenInvestment firm1round
Viventures PartnersInvestment firm1round
Net Fund EuropePrivate equity1round
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
These 6 firms list Reef as a portfolio company on their own websites, but no report of a round names them. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Reef
How much has Reef raised?
Reef has raised $39M across 2 rounds since 1999.
When did Reef last raise?
Reef's most recent round was a Series C of $26M in Feb 2002.
What was Reef's biggest round?
Its most recent round, $26M in Feb 2002, is also its largest on record.
Who backed Reef first?
Reef's first round on record, in Nov 1999, was backed by Cisco, Viventures and Net Fund Europe.
What stage is Reef at?
Reef's latest named round is a Series C, in Feb 2002.
Companies like Reef
In the same sector, and raised in the last eighteen months.
Find investors like these
Search every investor by what they have actually funded, then narrow to your stage and market. Free.