United States · Who invested in Protein Forest?
Protein Forest's investors include Flybridge, Novo Holdings A/S, Boston Millennia Partners and S.R. One , Limited.
200420052006200720082009
$19MSeries A$3.0MDebt$1.3MDebt$750KDebtUnited States · Funded startup
Who invested in Protein Forest
4 rounds we have observed, with the 4 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
$24Mraised across 4 rounds since 2003, from 4 sources
$19MSeries A$3.0MDebt$1.3MDebt$750KDebt
- Latest round
- Debt, $750KNov 2009
- Biggest round
- $19MSeries A · Nov 2003
- Investors
- 4
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 A, $19M Nov 2003
- Biggest round
- $19M Series A · Nov 2003
- Usual gap between rounds
- 4 months the median of 3
The rounds
- Nov 2009Debt$750K
No investor was named in the report.
From a historical funding recordSEC filing: $750K sold, first sale Nov 2009
- Jul 2009Debt$1.3M
No investor was named in the report.
From a historical funding recordSEC filing: $1.3M sold, first sale Jun 2009
- Apr 2009Debt$3.0M
No investor was named in the report.
From a historical funding recordSEC filing: $3.0M sold, first sale Dec 2008
- Nov 2003Series A$19M4 new
From a historical funding record
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.
Series A2003Debt2009Debt2009Debt2009
FlybridgeNovo Holdings A/S
Boston Millennia PartnersS.R. One , Limited
FlybridgeNovo Holdings A/SBoston Millennia PartnersS.R. One , LimitedThe exit
ExitBuyerPriceWhen
AcquiredCellBiosciencesundisclosedDec 2009
From historical deal records. Wrong? Tell us.
Everyone who backed them
Novo Holdings A/SGrowth equity1round
S.R. One , LimitedGrowth equity1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about Protein Forest
How much has Protein Forest raised?
Protein Forest has raised $24M across 4 rounds since 2003.
When did Protein Forest last raise?
Protein Forest's most recent round was a Debt of $750K in Nov 2009.
What was Protein Forest's biggest round?
Protein Forest's largest round on record is $19M (Series A), in Nov 2003.
Who backed Protein Forest first?
Protein Forest's first round on record, in Nov 2003, was backed by Flybridge, Novo Holdings A/S and Boston Millennia Partners and 1 others.
What stage is Protein Forest at?
Protein Forest's latest named round is a Debt, in Nov 2009.
Where is Protein Forest based?
Protein Forest is based in the United States.
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In the same sector, and raised in the last eighteen months.
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