List of companies that did not sign the NYA (aka B2X or SegWit2x)
- Acinq - Bitcoin LN scalability provider
- Anycoin Direct - European Bitcoin broker
- Azteco - Consumer Bitcoin
- Belgacoin - Large European Bitcoin exchange/broker
- Bernstein - Blockchain-based solutions for intellectual property protection
- BHB.network - Applied research lab - Consultancy firm, competence center and incubator
- Bisq - Decentralized Bitcoin exchange
- bit2c - Israel's top Bitcoin exchange
- Bitaccess - Canadian Bitcoin ATM network
- BitBargain - UK Bitcoin exchange
- BitBay - Bitcoin broker based in Poland
- BitcoinBrains - Canada ATMs and online brokerage service
- Bitcoin Cambodia - Cambodian Bitcoin broker
- Bitcoin Romania - Largest Romanian Bitcoin exchange & broker
- bitcoin.co.id - Indonesia's largest Bitcoin exchange
- bitcoin.co.th - One of Thailand's largest Bitcoin brokers/exchange
- Bitcoin.de - One of Europe's largest P2P Bitcoin exchanges
- BitcoinReminder - Notification service
- BitcoinSolutions - Buy and sell bitcoin online and at Canada ATMs
- Bitfinex - One of the world's largest Bitcoin exchanges
- Bitit - European Bitcoin broker
- BitNational - Canada's Bitcoin ATM network
- Bitonic - Dutch Bitcoin broker
- BitPanda - One of Europe's largest Bitcoin brokers
- BitPremier - The Bitcoin luxury marketplace
- BitQuick - Major cash to Bitcoin exchange in the USA
- Bitrated - Trust and rating system
- Bitrefill - Mobile phone topups with Bitcoin
- Bitrush - Dutch Bitcoin broker
- Bits of Gold - Israel's largest Bitcoin broker
- Bitsewa - Nepal's largest Bitcoin exchange
- Bitstamp - One of the world's largest Bitcoin exchanges
- Bitstop - Bitcoin ATM operator
- Blockstream - Blockchain technologies provider
- BuyaBitcoin - Australian cash to bitcoin exchange
- Buy Bitcoin Worldwide - Bitcoin informational site
- Bylls - Pay bills using Bitcoin
- Catallaxy - Blockchain solutions and support
- CEX.io - Top global Bitcoin and crypto exchange
- Chaincode - Bitcoin technologies R&D
- Ciphrex - Wallet
- Coin Loft - Australian cash to Bitcoin exchange
- Coincheck - One of Japan's largest Bitcoin exchanges
- CoinCorner - European Bitcoin broker
- Coinfloor - European Bitcoin broker and exchange
- CoinHako - One of Singapore's largest Bitcoin exchanges
- coinhouse - Credit card to Bitcoin broker run by Ledger
- CoinJar - Australian Bitcoin broker
- Coinkite - Bitcoin infrastructure solutions
- CoinMama - One of the world's largest credit card to Bitcoin brokers
- Cryptobuyer - Venezeulan Bitcoin exchange
- Cubits - European Bitcoin broker
- Denarium - Physical BTC coins
- Digitalbitbox - Bitcoin hardware wallet
- Electrum - Bitcoin desktop wallet
- Flyp.me - Accountless crypto-to-crypto exchange
- FOXBIT - Brazilian Bitcoin exchange
- Gatecoin - Bitcoin exchange
- Gemini - One of the world's largest Bitcoin exchanges
- GreenAddress - Bitcoin web wallet
- HolyTransaction - One of the oldest multi-currency web wallet
- itBit - OTC Bitcoin trading
- Kraken - World's largest EUR Bitcoin exchange based on volume
- LakeBTC - Bitcoin exchange
- LibertyX - Major US cash to Bitcoin exchange
- Lightning Labs - Building lightning network layer 2 infrastructure
- LocalBitcoins - World's largest P2P Bitcoin exchange
- MaiCoin - Taiwanese Bitcoin exchange
- Mercado Bitcoin - Brazilian Bitcoin exchange
- Metaco - Payment solutions
- Mycelium - Popular Android Bitcoin wallet
- Nairaex - Nigeria's largest Bitcoin exchange
- NeoDisrupt - Global cash to Bitcoin exchange, DAX and payment processing
- OpenTimestamps - Scalable timestamping with Bitcoin
- OXT - Blockchain explorer
- Paycase - Paycase Remit
- Paymium - Bitcoin broker based in France
- Poloniex - World's largest cryptocurrency exchange
- Prasos - Leading Nordic bitcoin broker
- QuickBT - Buy Bitcoin with Debit, Credit, or Cash
- Samourai Wallet - Android Bitcoin wallet
- Satoshi Counter - Canadian OTC Bitcoin exchange
- Satoshi Tango - Latin American Bitcoin exchange
- Slush Pool - Bitcoin mining pool
- SurBitcoin - Venezuela's largest Bitcoin exchange
- TREZOR - Hardware Bitcoin wallet
- The Bitcoin Report - Media Company
- Urdubit - Bitcoin exchange based in Pakistan
- Vaultoro - Gold/bitcoin exchange
- VirWoX - World's largest Paypal to Bitcoin exchange
- Volabit - Mexican Bitcoin exchange
- Wall of Coins - Major US cash to Bitcoin exchange]
- Walltime - Brazilian Bitcoin exchange
- XBT.eu - Bitcoin Blockchain Statistics
- Xotika.tv - Bitcoin Social Video-Streaming Platform
- Zebpay - One of India's largest Bitcoin exchanges
Need clarification:
- Huobi - Chinese Bitcoin exchange
- OKCoin - Chinese Bitcoin exchange
Does not run full nodes:
- breadwallet - Most popular iOS Bitcoin wallet
Maybe / Unsure
- Bittylicious - One of the UK's largest Bitcoin brokers
Will Support Post Fork
- Ledger Wallet - Hardware Bitcoin wallet
This list originated from a reddit collection later posted on PasteBin. If you see something wrong, changed your mind or want to be added? Just make a PR here