The REBUILD proposal address immigrant integration through the provision of a toolbox of ICT-based solutions that will improve both the management procedures of the local authorities and the life quality of the migrants. The design approach is user-centered and participated: both target groups (immigrants/refugees and local public services providers) will be part of the user requirement analysis and participants in three 2-days Co-Creation workshops organized in the 3 main piloting countries: Italy, Spain and Greece, chosen also for their being the "access gates" to Europe for main immigration routes. Users and stakeholders engagement is a key success factor addressed both in the Consortium composition and in its capacity to engage relevant stakeholders external to the project. The key technology solutions proposed are: GDPR-compliant migrants’ integration related background information gathering with user consent and anonymization of personal information; AI-based profile analysis to enable both personalized support and policy making on migration-related issues; AI-based needs matching tool, to match migrant needs and skills with services provided by local authorities in EU countries and labor market needs at local and regional level; a digital companion for migrants enabling personalized two-way communication using chatbots to provide them smart support for easy access to local services (training, health, employment, welfare, etc.) and assessment of the level of integration and understanding of the new society, while providing to local authorities data-driven, easy to use decision supporting tools for enhancing capacities and effectiveness in service provision. Cross-culturality, ethical, accessibility dimensions will be addressed since the very beginning of the project, and validated and assessed in terms of consistency and impact during the project lifespan.