United States · 
Who invested in Sandstone Diagnostics?
Sandstone Diagnostics's investors include Sand Hill Angels, LaunchCapital, Astia Angels, Life Science Angels and Hedgewood, and 3 more on record.
20132014
$505KSeed$150KGrant$150KGrant$750KSeedUnited States · Seed startup
Who invested in Sandstone Diagnostics
Funding summaryUpdated 26 Oct 2026
$1.6Mraised across 4 rounds since 2013, from 4 sources
$505KSeed$150KGrant$150KGrant$750KSeed
- Latest round
- Seed, $750KJun 2014
- Step-upi
- 5×
- Investors
- 8
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Seed, $505K Feb 2013
- Biggest round
- $750K Seed · Jun 2014
- Usual gap between rounds
- 9 months the median of 2
The rounds
- Jun 2014Seed$750K8 new
Sand Hill Angels
LaunchCapital
Astia Angels
Life Science Angels
Hedgewood- Harvard Business School Angels
Berkeley Angel Network- Treasure Valley Angel Fund
From a historical funding recordSEC filing: $1.3M sold, first sale Jun 2014
- Jun 2014Grant$150K
No investor was named in the report.
From a historical funding recordSEC filing: $1.3M sold, first sale Jun 2014
- Sept 2013Grant$150K
No investor was named in the report.
From a historical funding record
- Feb 2013Seed$505K
No investor was named in the report.
From a historical funding record
Founders and team
From the SEC filings it signed: 4 on the team.
- Gregory SommerExecutive Officer, Directori
- Karen DrexlerExecutive Officer, Directori
- Paul MannersExecutive Officeri
- Ulrich SchaffExecutive Officeri
On the board, as filediEbetuel PallaresFaith CharlesRobert Easton
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
Harvard Business School AngelsVC firm1round
Treasure Valley Angel FundVC firm1round
Missing a round, or an investor who was in one? Tell us.
Also claim to have backed them
This firm lists Sandstone Diagnostics as a portfolio company on their own website, but no report of a round names it. They are the firms' own claims, kept apart from the rounds above.
Quick answers about Sandstone Diagnostics
How much has Sandstone Diagnostics raised?
Sandstone Diagnostics has raised $1.6M across 4 rounds since 2013.
When did Sandstone Diagnostics last raise?
Sandstone Diagnostics's most recent round was a Seed of $750K in Jun 2014.
What was Sandstone Diagnostics's biggest round?
Its most recent round, $750K in Jun 2014, is also its largest on record.
Who backed Sandstone Diagnostics first?
Sandstone Diagnostics's first round on record, in Jun 2014, was backed by Sand Hill Angels, LaunchCapital and Astia Angels and 5 others.
What stage is Sandstone Diagnostics at?
Sandstone Diagnostics's latest named round is a Seed, in Jun 2014.
Where is Sandstone Diagnostics based?
Sandstone Diagnostics is based in the United States.
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