Nethermind is a fintech firm based in London, United Kingdom that nethermind is an ethereum infrastructure, research and security firm best known for the nethermind execution client, one of the largest clients securing the ethereum network. it builds core protocol tooling for ethereum and starknet, runs nethermind security for smart contract audits and formal verification, and supports institutions with blockchain-as-a-service and real-world asset tokenization. the remote-first team spans more than 200 people across dozens of countries. They serve clients in United Kingdom. Nethermind is listed on The Token Playbook's vetted provider registry at thetokenplaybook.com/registry/nethermind.