4MDG is a master data management (MDM) platform and cleansing service for material, customer and vendor master data, built for mid-size and large companies that run SAP, Oracle or TOTVS. Key capabilities: deduplication and standardization of records, with a descriptive standard (PDM) for material descriptions; classification of items by NCM and UNSPSC; validation and enrichment against more than 600 public data sources; approval workflows supported by an AI assistant (ADAM); loading of cleansed and approved records into SAP, Oracle and TOTVS, and support for SAP S/4HANA data migration projects; supplier and customer onboarding that validates CNPJ and CPF against official sources; and Data as a Service, where 4MDG can operate the client's master data under an SLA. Differentiators: native handling of Brazilian fiscal data (NCM, CNPJ, CPF) and of Portuguese-language material descriptions. Scale and security: 160 clients in 6 countries, about 60 million records under management, ISO/IEC 27001 certified. The company was incorporated in 2010, and the 4MDG software platform launched in 2019.