United States · Who invested in NextBio?
NextBio's investors include Amidzad Partners, Newbury Ventures, Ridge Ventures, Cota Capital and Signatures Capital, and 1 more on record.
2005200820112014201720202023
$1.1MSeries A$7.0MSeries B$8.0MSeries C$5.8MSeries B
United States · Series B startup
Who invested in NextBio
Funding summaryUpdated 26 Oct 2026
$22Mraised across 4 rounds since 2005, from 4 sources
$1.1MSeries A$7.0MSeries B$8.0MSeries C$5.8MSeries B
- Latest round
- Series B, $5.8MDec 2023
- Biggest round
- $8.0MSeries C · Sept 2009
- Investors
- 6
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, $1.1M Jan 2005
- Biggest round
- $8.0M Series C · Sept 2009
- Usual gap between rounds
- 2.4 years the median of 3
The rounds
- Dec 2023
- Sept 2009Series C$8.0M2 new1 returning
Reported by paidcontent.orgSEC filing: $6.8M sold, first sale Dec 2008
- Jun 2007
- Jan 2005
Founders and team
From the SEC filings it signed: 2 on the team.
- Saeid AkhtariExecutive Officer, Directori
- Shahram Seyedin-NoorExecutive Officeri
On the board, as filediAmir AbolfathiBruce BauerDavid BarkerMostafa Ronaghi
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 A2005Series B2007Series C2009Series B2023Amidzad Partners
Newbury Ventures
Ridge Ventures
Cota Capital
Signatures Capital
Stonebridge Ventures
Newbury VenturesRidge VenturesCota CapitalSignatures CapitalStonebridge VenturesThe exit
ExitBuyerPriceWhen
From historical deal records. Wrong? Tell us.
Everyone who backed them
Amidzad PartnersVC firm2rounds
Missing a round, or an investor who was in one? Tell us.
Quick answers about NextBio
How much has NextBio raised?
NextBio has raised $22M across 4 rounds since 2005.
When did NextBio last raise?
NextBio's most recent round was a Series B of $5.8M in Dec 2023.
What was NextBio's biggest round?
NextBio's largest round on record is $8.0M (Series C), in Sept 2009.
Who backed NextBio first?
NextBio's first round on record, in Jan 2005, was backed by Amidzad Partners.
What stage is NextBio at?
NextBio's latest named round is a Series B, in Dec 2023.
Where is NextBio based?
NextBio is based in the United States.
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