Category: Companies

Bitmain's Bitcoin mining pool: a Hong Kong Roundtable signer in 2016, a Bitcoin Cash backer that burned part of its BCH, and a 2022 funder of Ethereum Classic grants.

Bitcoin self-custody company known for multisig vaults; Jameson Lopp is a co-founder, and Nick Neuman took over as CEO in 2020.

A BSV mining pool run by Kurt Wuckert Jr. and partners, which says it works with the Teranode team.

Jeremy Rubin's company for building DAOs and contracts on Bitcoin with the Sapio language, where Keagan McClelland worked.

Paul Sztorc's company building drivechains and the eCash (ECX) fork.

Exchange that listed Ethereum Classic days after the DAO fork, froze stolen ETC, listed CLAMs, and was owned by Circle from 2018 to 2019.

Multisignature custody company led by Mike Belshe; a 2x supporter whose name was wrongly put on the New York Agreement, and since January 2026 a NYSE-listed firm.

China's leading early bitcoin exchange (BTC China), a signatory of both the 2016 Hong Kong Roundtable and the 2017 New York Agreement.

The Beijing ASIC maker co-founded by Jihan Wu and Micree Zhan, operator of Antpool and BTC.com, and a major Bitcoin Cash backer.

One of the first Chinese Bitcoin mining pools, co-founded by Wang Chun, who signed both the Hong Kong Roundtable and the New York Agreement.

Roger Ver's company and domain, founded in 2014, which became the most visible Bitcoin Cash promoter after 2017.

The Bitcoin infrastructure company co-founded by Adam Back, Pieter Wuille and Gregory Maxwell in 2014.

Bitcoin miner and ASIC maker whose executives signed the 2016 Hong Kong statement and which appeared on the 2017 New York Agreement.

Blockchain company co-founded by Matthew Roszak and Jeff Garzik, a New York Agreement supporter, and the team behind United Bitcoin's launch.

The mining pool founded by Haipo Yang in 2016 that suggested the name Bitcoin Cash, listed it before the split, and mined its first block.

Bitmain-operated mining pool and block explorer that mined the last block shared by Bitcoin and Bitcoin Cash; the domain now hosts a “BTC.com Museum”.

BSV-focused news site and events brand founded by Calvin Ayre.

Craig Wright's company in the Bitcoin SV split: it announced the Bitcoin SV client in August 2018, and the Ayre Group took control of it in 2023.

Maker of StartOS and home servers for self-hosting, which Keagan McClelland says grew out of a group of core engineers leaving Salt Lending in 2019.