TRISTONE PRB LTD is an active UK private limited company, incorporated on 12 May 2025 at Companies House (number 16445459; OpenRegistry canonical ID GB-16445459-tristone-prb-ltd). Sophymarine's OpenRegistry classifies it under SIC 41100 (Development of building projects), one of 116,800 active UK entities in that code and one of 140 active companies registered in Chadderton (postcode OL9). Programmatic access via MCP at https://openregistry.sophymarine.com/mcp.