United States · Who invested in RF Surgical Systems?
RF Surgical Systems's investors include Menlo Ventures, Split Rock Partners, Stanford University and Oxford Finance LLC.
2011201220132014
$2.5MVenture$12MVenture$120KSeed$15MVentureUnited States · Venture startup
Who invested in RF Surgical Systems
4 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
$30Mraised across 4 rounds since 2010, from 4 sources
$2.5MVenture$12MVenture$120KSeed$15MVenture
- Latest round
- Venture, $15MApr 2014
- Step-upi
- 125×
- 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
- Venture, $2.5M May 2010
- Biggest round
- $15M Venture · Apr 2014
- Usual gap between rounds
- 16 months the median of 3
The rounds
- Apr 2014
- Jan 2013Seed$120K
No investor was named in the report.
Reported by sec.govSEC filing: $120K sold, first sale Dec 2012
- Sept 2011Venture$12M3 new
Reported by finsmes.comSEC filing: $12M sold, first sale Sept 2011
- May 2010Venture$2.5M
No investor was named in the report.
From a historical funding recordSEC filing: $2.5M sold, first sale May 2010
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.
Venture2010Venture2011Seed2013Venture2014
Menlo Ventures
Split Rock PartnersStanford University
Oxford Finance LLC
Menlo VenturesSplit Rock PartnersStanford UniversityOxford Finance LLCThe exit
ExitBuyerPriceWhen
From historical deal records. Wrong? Tell us.
Everyone who backed them
Stanford UniversityVC firm1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about RF Surgical Systems
How much has RF Surgical Systems raised?
RF Surgical Systems has raised $30M across 4 rounds since 2010.
When did RF Surgical Systems last raise?
RF Surgical Systems's most recent round was a Venture of $15M in Apr 2014.
What was RF Surgical Systems's biggest round?
Its most recent round, $15M in Apr 2014, is also its largest on record.
Who backed RF Surgical Systems first?
RF Surgical Systems's first round on record, in Sept 2011, was backed by Menlo Ventures, Split Rock Partners and Stanford University.
What stage is RF Surgical Systems at?
RF Surgical Systems's latest named round is a Venture, in Apr 2014.
Where is RF Surgical Systems based?
RF Surgical Systems is based in the United States.
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