United States · Who invested in CardioNet?
CardioNet's investors include Sanderling Ventures, Hambrecht & Quist Capital Management, Guidant and BioFrontier Partners.
20032004200520062007
$13MSeries C$110MSeries EUnited States · Series E startup
Who invested in CardioNet
2 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
$123Mraised across 2 rounds since 2003, from 2 sources
$13MSeries C$110MSeries E
- Latest round
- Series E, $110MMar 2007
- Step-upi
- 8.5×
- 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 C, $13M Jan 2003
- Biggest round
- $110M Series E · Mar 2007
- Between rounds
- 4.2 years from the last two
The rounds
- Mar 2007Series E$110M
No investor was named in the report.
From a historical funding record
- Jan 2003Series C$13M4 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 C2003Series E2007
Sanderling VenturesHambrecht & Quist Capital ManagementGuidant
BioFrontier Partners
Sanderling VenturesHambrecht & Quist Capital ManagementGuidantBioFrontier PartnersEveryone who backed them
Hambrecht & Quist Capital ManagementGrowth equity1round
GuidantCorporate VC1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about CardioNet
How much has CardioNet raised?
CardioNet has raised $123M across 2 rounds since 2003.
When did CardioNet last raise?
CardioNet's most recent round was a Series E of $110M in Mar 2007.
What was CardioNet's biggest round?
Its most recent round, $110M in Mar 2007, is also its largest on record.
Who backed CardioNet first?
CardioNet's first round on record, in Jan 2003, was backed by Sanderling Ventures, Hambrecht & Quist Capital Management and Guidant and 1 others.
What stage is CardioNet at?
CardioNet's latest named round is a Series E, in Mar 2007.
Where is CardioNet based?
CardioNet is based in the United States.
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