OpenSea
Ethereum, Polygon, and multi-chain NFT trading platform. Peaked at $14B valuation in 2022; rebuilt as OS2 in 2025.
- Location
- New York, United States
- Raised
- $427M+
- Stage
- Series C
- Founded
- 2017
- Category
- Marketplace
- Funding
- VC-backed
- Team
- 201-500
Funding figures as of Jul 2025 · not independently verified
Founders of OpenSea
- Devin Finzer
- Alex Atallah
Investors backing OpenSea
- Andreessen Horowitz
- Coatue
- Paradigm
Frequently asked questions
What does OpenSea do?
Ethereum, Polygon, and multi-chain NFT trading platform. Peaked at $14B valuation in 2022; rebuilt as OS2 in 2025.
Where is OpenSea based?
OpenSea is based in New York, United States.
When was OpenSea founded?
OpenSea was founded in 2017.
How much has OpenSea raised?
OpenSea has raised $427M+ in their Series C round as of Jul 2025.
Who founded OpenSea?
OpenSea was founded by Devin Finzer, Alex Atallah.
Who has invested in OpenSea?
OpenSea is backed by Andreessen Horowitz, Coatue, Paradigm.
How OpenSea would pitch themselves
○ Auto-generated01Target customer
Two-sided audience — buyers + suppliers connecting through OpenSea's platform.
02Problem they solve
Ethereum, Polygon, and multi-chain NFT trading platform. Peaked at $14B valuation in 2022; rebuilt as OS2 in 2025. The category has historically been served by tools that miss the modern workflow this product is built around.
03Key differentiator
OpenSea differentiates on the world's first and largest nft marketplace. Backed by Andreessen Horowitz + Coatue, $427M+ raised — the company has resources + validation to compound this thesis. Founded by Devin Finzer + team.
04Go-to-market strategy
Growth-stage GTM — multi-channel revenue motion (direct enterprise sales, channel partnerships, marketplace listings). Vertical specialisation + verticalised AE teams targeting enterprise + mid-market.