MILLSTONE VENTURES LIMITED is an active UK private limited company, incorporated on 11 November 2025 at Companies House (number 16846356; OpenRegistry canonical ID GB-16846356-millstone-ventures-limited). Sophymarine's OpenRegistry classifies it under SIC 68100 (Buying and selling of own real estate), one of 252,181 active UK entities in that code and one of 19,128 active companies registered in Doncaster (postcode DN1). Programmatic access via MCP at https://openregistry.sophymarine.com/mcp.