Portion is a legacy Ethereum-based NFT marketplace and digital auction house that connected artists and collectors through blockchain technology to buy, sell, and own art and collectibles. The original platform is no longer operating as an active standalone marketplace, with its Ethereum NFTs backed up and preserved on OpenSea, and the official website now identifies it as a legacy platform. Portion's Twitter Score is 38 out of 1000 as of September 2026, ranking #24,717 (top 10%) among 486,573 tracked accounts.
Portion was co-founded by Jason Rosenstein and Peter Engleman. Built on Ethereum and IPFS, the platform was designed to auction both digital and physical artworks and collectibles using cryptocurrencies and blockchain technology. A distinctive feature was its use of Ethereum-token digital certificates to represent physical collectibles, validating authenticity and tracking provenance. Portion also issued its own cryptocurrency, PRT, which functioned within the marketplace ecosystem. The platform reported closing a $5.5 million seed round from 15 investors, though the source did not identify those investors.
Portion has published 3,339 posts on the platform. It has been mentioned by 81 accounts, with 390 total mentions.
Who follows Portion on X?
The accounts that follow Portion include 148 founders, 33 angel investors and 78 influencers. Among them are Andrew Kang, Joseph Lubin, DeFi Dad defidad.eth, Jake Brukhman, Mando and Cuy Sheffield.