LETTERS NEVER SENT LTD is an active UK private limited company, incorporated on 25 July 2025 at Companies House (number 16607080; OpenRegistry canonical ID GB-16607080-letters-never-sent-ltd). Sophymarine's OpenRegistry classifies it under SIC 90030 (Artistic creation), one of 23,059 active UK entities in that code and one of 1,093,852 active companies registered in London (postcode N1). Programmatic access via MCP at https://openregistry.sophymarine.com/mcp.