market include IBM (US), AWS (US), Microsoft (US), SAP (Germany), Intel (US), Oracle (US), Bitfury (Netherlands), Cegeka (Netherlands), Earthport (UK), Guardtime (US), Digital Asset Holdings (US), Chain (US), Huawei (China), BlockCypher (US), Symbiont (US), BigchainDB (Germany), Applied Blockchain (UK), RecordsKeeper (Gibraltar), BlockPoint (US), Auxesis Group (India), BTL Group (Canada), Blockchain Foundry (UK), AlphaPoint (US), NTT Data (Japan), Factom (US), SpinSys (US), ConsenSys (US), Infosys (India), iXLedger (UK), and Stratis (UK). • Major platforms • Ethereum • Public, dapps, Smart contracts, NFTs • IBM Blockchain • Private, dapps • Hyperledger Fabric • Private, data exchange, privacy-friendly • Hyperledger Sawtooth • Customizable, trusted secure enclaves • R3 Corda • Federated, DeFi, de-facto standard for insurance apps • Tezos • Dapps, Smart Contracts, NFTs, DeFi • EOSIO • Dapps, Smart contracts • Stellar • DeFi • Quorum • Customized version of Ethereum pioneered by financial services company JPMorgan, banking apps