United States · 
Who invested in Zelos Therapeutics?
Zelos Therapeutics's investors include BDC Capital, VenGrowth, Genesys Capital and Seaflower Ventures.
2005200620072008200920102011
$5.5MSeries A$1.5MDebt$922KDebt$2.8MSeedUnited States · Seed startup
Who invested in Zelos Therapeutics
Funding summaryUpdated 26 Oct 2026
$11Mraised across 4 rounds since 2004, from 4 sources
$5.5MSeries A$1.5MDebt$922KDebt$2.8MSeed
- Latest round
- Seed, $2.8MAug 2011
- Biggest round
- $5.5MSeries A · Oct 2004
- Step-upi
- 3×
- 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, $5.5M Oct 2004
- Biggest round
- $5.5M Series A · Oct 2004
- Usual gap between rounds
- 15 months the median of 3
The rounds
- Aug 2011Seed$2.8M
No investor was named in the report.
Reported by sec.govSEC filing: $2.8M sold, first sale Aug 2011
- May 2010Debt$922K
No investor was named in the report.
Reported by sec.govSEC filing: $922K sold, first sale May 2010
- Mar 2009Debt$1.5M
No investor was named in the report.
From a historical funding recordSEC filing: $1.0M sold, first sale Mar 2009
- Oct 2004Series A$5.5M4 new
From a historical funding record
Founders and team
From the SEC filings it signed: 1 on the team.
- Brian MacDonaldExecutive Officer, Directori
On the board, as filediAlex BarkasCynthia LavoieJoseph Zakrzewski
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
VenGrowthInvestment firm1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about Zelos Therapeutics
How much has Zelos Therapeutics raised?
Zelos Therapeutics has raised $11M across 4 rounds since 2004.
When did Zelos Therapeutics last raise?
Zelos Therapeutics's most recent round was a Seed of $2.8M in Aug 2011.
What was Zelos Therapeutics's biggest round?
Zelos Therapeutics's largest round on record is $5.5M (Series A), in Oct 2004.
Who backed Zelos Therapeutics first?
Zelos Therapeutics's first round on record, in Oct 2004, was backed by BDC Capital, VenGrowth and Genesys Capital and 1 others.
What stage is Zelos Therapeutics at?
Zelos Therapeutics's latest named round is a Seed, in Aug 2011.
Where is Zelos Therapeutics based?
Zelos Therapeutics is based in the United States.
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