Home  >  Companies  >  OpenSea OpenSea Follow Marketplace for buying, selling, and creating NFTs across multiple blockchain networks #web3 Valuation $13.30B 2025 Funding $427.00M 2025 View PDF Embed PDF Details Headquarters New York, United States CEO Devin Finzer Website opensea.io Milestones FOUNDING YEAR 2017 Listed In #web3 OpenSea Overview Reports News Filings Filings Company documents and regulatory filings for OpenSea. Name Type Filed At Actions opensea_coi_2022-11-10 Certificate of Incorporation Nov 10, 2022 View PDF opensea_coi_2022-09-02 Certificate of Incorporation Sep 02, 2022 View PDF