United States · 
Who invested in First Opinion?
First Opinion's investors include 500 Global, Greylock, Felicis, True Ventures and Monashees, and 6 more on record.
2014
?Seed$1.2MSeed$1.4MSeed$6.0MSeries A
United States · Series A startup
Who invested in First Opinion
Funding summaryUpdated 26 Oct 2026
$8.6Mraised across 4 rounds since 2013, from 4 sources
$1.2MSeed$1.4MSeed$6.0MSeries A
- Latest round
- Series A, $6.0MDec 2014
- Step-upi
- 4.3×
- Investors
- 11
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 Mar 2013
- Biggest round
- $6.0M Series A · Dec 2014
- Usual gap between rounds
- 7 months the median of 3
The rounds
- Dec 2014Series A$6.0M2 new6 returning
From a historical funding record
- May 2014
- Jan 2014
- Mar 2013SeedAmount undisclosed6 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.
Seed2013Seed2014Seed2014Series A2014
500 Global
Greylock
Felicis
True Ventures
Monashees
Scrum Ventures
Polaris Partners
M Ventures
Promus Ventures
Yuri Milner
500 GlobalGreylockFelicisTrue VenturesMonasheesScrum VenturesPolaris PartnersM VenturesPromus VenturesYuri MilnerEveryone who backed them
Missing a round, or an investor who was in one? Tell us.
Quick answers about First Opinion
How much has First Opinion raised?
First Opinion has raised $8.6M across 4 rounds since 2013. One round did not disclose an amount, so the total is a floor.
When did First Opinion last raise?
First Opinion's most recent round was a Series A of $6.0M in Dec 2014.
What was First Opinion's biggest round?
Its most recent round, $6.0M in Dec 2014, is also its largest on record.
Who backed First Opinion first?
First Opinion's first round on record, in Mar 2013, was backed by 500 Global, Greylock and Promus Ventures and 3 others.
What stage is First Opinion at?
First Opinion's latest named round is a Series A, in Dec 2014.
Where is First Opinion based?
First Opinion is based in the United States.
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