Onecub is a data-space architecture and engineering company helping public and private organisations create secure, sovereign data-sharing ecosystems across sectors and borders. Since 2011, it says it has supported hundreds of organisations in moving from early blueprints to scalable, AI-ready data sharing. Its approach combines ecosystem development, governance, standards-based infrastructure, compliance and engineering, with expertise spanning areas such as mobility and tourism, legal services, energy, logistics, agriculture, manufacturing, smart cities, culture and media, and skills.

Onecub offers advisory and implementation services to recruit partners, align incentives, establish shared policies and decision rights, design infrastructure, develop use cases and business models, and grow data-space communities. Its solutions include agentic AI frameworks and assistants, collaboration tools such as connectors and marketplaces, and identity wallets for individuals and organisations. Wallet capabilities include identity, consent, permissions, mandates, contracts and security.

The company also works on initiatives including EONA-X for mobility, tourism and logistics, the Legal Data Space, and the EU Space Data Space preliminary study.