United States · Who invested in Sopherion Therapeutics?
Sopherion Therapeutics's investors include TL Ventures, ProQuest Investments, HealthCap, Seaflower Ventures and Canaan, and 7 more on record.
2004
$26MSeries A$47MSeries BUnited States · Series B startup
Who invested in Sopherion Therapeutics
2 rounds we have observed, with the 12 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
$73Mraised across 2 rounds since 2003, from 2 sources
$26MSeries A$47MSeries B
- Latest round
- Series B, $47MSept 2004
- Step-upi
- 1.8×
- Investors
- 12
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, $26M Mar 2003
- Biggest round
- $47M Series B · Sept 2004
- Between rounds
- 19 months from the last two
The rounds
- Sept 2004Series B$47M4 new4 returning
Canaan
TL Ventures
Sprout Group
ProQuest Investments
HealthCap
Seaflower Ventures- NewSpring Ventures
- Commerce Health Capital
From a historical funding record
- Mar 2003Series A$26M8 new
Connecticut Innovations
Intersouth PartnersJohnson & Johnson Development Corporation (JJDC)
- TL Ventures
- ProQuest Investments
- HealthCap
- Seaflower Ventures
- GE Capital Life Science and Technology Finance
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.
Everyone who backed them
NewSpring VenturesVC firm1round
Commerce Health CapitalInvestment firm1round
GE Capital Life Science and Technology FinanceVC firm1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about Sopherion Therapeutics
How much has Sopherion Therapeutics raised?
Sopherion Therapeutics has raised $73M across 2 rounds since 2003.
When did Sopherion Therapeutics last raise?
Sopherion Therapeutics's most recent round was a Series B of $47M in Sept 2004.
What was Sopherion Therapeutics's biggest round?
Its most recent round, $47M in Sept 2004, is also its largest on record.
Who backed Sopherion Therapeutics first?
Sopherion Therapeutics's first round on record, in Mar 2003, was backed by Connecticut Innovations, Intersouth Partners and Johnson & Johnson Development Corporation (JJDC) and 5 others.
What stage is Sopherion Therapeutics at?
Sopherion Therapeutics's latest named round is a Series B, in Sept 2004.
Where is Sopherion Therapeutics based?
Sopherion Therapeutics is based in the United States.
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