United States · Who invested in PhotoThera?
PhotoThera's investors include Warburg Pincus, Delphi Ventures, De Novo Ventures, The Vertical Group and Hamilton BioVentures, and 1 more on record.
200720082009
$31MSeries C$50MSeries DUnited States · Series D startup
Who invested in PhotoThera
2 rounds we have observed, with the 6 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
$81Mraised across 2 rounds since 2006, from 2 sources
$31MSeries C$50MSeries D
- Latest round
- Series D, $50MMay 2009
- Step-upi
- 1.6×
- 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 C, $31M Apr 2006
- Biggest round
- $50M Series D · May 2009
- Between rounds
- 3.1 years from the last two
The rounds
- May 2009Series D$50M5 returning
Reported by onbiovc.comSEC filing: $36M sold, first sale Apr 2009
- Apr 2006Series C$31M6 new
Reported by highbeam.com
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 C2006Series D2009
Warburg Pincus
Delphi VenturesDe Novo Ventures
The Vertical GroupHamilton BioVenturesSol Cap Inc
Warburg PincusDelphi VenturesDe Novo VenturesThe Vertical GroupHamilton BioVenturesSol Cap IncEveryone who backed them
De Novo VenturesGrowth equity2rounds
Hamilton BioVenturesVC firm2rounds
Sol Cap IncGrowth equity1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about PhotoThera
How much has PhotoThera raised?
PhotoThera has raised $81M across 2 rounds since 2006.
When did PhotoThera last raise?
PhotoThera's most recent round was a Series D of $50M in May 2009.
What was PhotoThera's biggest round?
Its most recent round, $50M in May 2009, is also its largest on record.
Who backed PhotoThera first?
PhotoThera's first round on record, in Apr 2006, was backed by Warburg Pincus, Delphi Ventures and De Novo Ventures and 3 others.
What stage is PhotoThera at?
PhotoThera's latest named round is a Series D, in May 2009.
Where is PhotoThera based?
PhotoThera is based in the United States.
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