OpenSea
The world's largest NFT marketplace — discover, trade, and create onchain
Crypto
📍 New York, NY
Founded 2017
Current Valuation
$13B
as of 2021-Q4
DECACORN
OpenSea is the largest NFT marketplace and onchain trading platform, enabling users to discover, trade, and mint non-fungible tokens across Ethereum, Polygon, Base, and other chains. Founded in 2017, OpenSea relaunched as OS2 in 2025 with a unified token-and-NFT trading experience and the SEA token airdrop.
Company Profile
Growth
OS2 relaunch and SEA token airdrop in 2025 drove volume rebound
Last Round
Series C — $300M (Jan 2022) · Lead: Paradigm
IPO Status
no imminent plans
Founders & Key People
Devin FinzerAlex Atallah
Investors
Paradigm · Coatue · Andreessen Horowitz · Founders Fund
Products
- NFT marketplace (OS2)
- Token trading
- OpenSea Pro
- SEA token
Competitors
Blur · Magic Eden · X2Y2 · LooksRare
CryptoNFTMarketplaceWeb3
Private-company numbers are not real-time. Reflects publicly disclosed valuations from press releases, news reports, and tender offers as of 2021-Q4. Refreshed quarterly.