United States · 
Who invested in Opine?
Opine's investors include Y Combinator, Triangle Tweener Fund and S3 Ventures.
2026
$500KPre-seed$5.0MSeedUnited States · Seed startup
Who invested in Opine
Funding summaryUpdated 26 Oct 2026
$5.5Mraised across 2 rounds since 2025, from 2 sources
$500KPre-seed$5.0MSeed
- Latest round
- Seed, $5.0MDec 2025
- Step-upi
- 10×
- Investors
- 3
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Pre-seed, $500K Mar 2025
- Biggest round
- $5.0M Seed · Dec 2025
- Between rounds
- 9 months from the last two
The rounds
- Dec 2025
- Mar 2025
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
Missing a round, or an investor who was in one? Tell us.
Quick answers about Opine
How much has Opine raised?
Opine has raised $5.5M across 2 rounds since 2025.
When did Opine last raise?
Opine's most recent round was a Seed of $5.0M in Dec 2025.
What was Opine's biggest round?
Its most recent round, $5.0M in Dec 2025, is also its largest on record.
Who backed Opine first?
Opine's first round on record, in Mar 2025, was backed by Y Combinator.
What stage is Opine at?
Opine's latest named round is a Seed, in Dec 2025.
Where is Opine based?
Opine is based in the United States.
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