We, in ZZI enterprise have developed various eInterchange systems for the harmonised processes of all participants in the elective chains, in the state administration and economy. We’re offering solutions for the effective business activities and industry and services link-up for the on-line information flow.

Customs Systems DevelopmenteBusinessDevelopment of SolutionseInvoices


For the digitalisation of operating activities and linking with the partners it is important to select reliable partner with the innovative solutions. The Fourth Industrial Revolution (Industry 4.0) requires the customization to new guidelines of all industries.

The enterprise ZZI is assisting in the opening of new digital paths to the partners and in the smart automation of processes in the logistics, the procurement chains and in the procedures with the state.


The enterprise ZZI d. o. o. is the service provider for the automated business processes and electronic data interchange (EDI), interchange of eInvoices and other types of documents under different standards in the company or with the partners in the economic sector, Public Administration and the international business. 

Customs Systems Development

From the very beginning, that is from the formation of the enterprise ZZI, experts and technical staff of the enterprise ZZI had been actively engaged in the development of customs information systems. There is a successful cooperation between the Customs Administrations of the Republic of Slovenia and Montenegro since both states gained their independence.

eBusiness with Partners

With the knowledge and experiences obtained during the enterprise’s overall business activities we’re developing and currently upgrading deployment of the solutions and services for digital linking of companies with the partners and eInterchange.

eBusiness Support

Our principal aim is to provide the accessibility of the paperless business and EDI interchange in a real time either for small- size or for large- size companies. Our applications and solutions are customized to the requirements of individual industries and in this way we are able to solve many problems at all levels of the users. 

Development of Solutions per Order

Development of the information solutions for the public administrations and business systems are provided by us by thorough knowledge and understanding of the procedures, project management and the quality development provision, as well as the implementation management. 


Upon deployment of eInvoices in the public administration we with our partners were the pioneers in this field of operating activity – the first eInvoicie transmitted into the environment of UJP (Public Payments Administration of the Republic of Slovenia) was sent through bizBox eInterchange service.