Building the future of Bosnia & Herzegovina together


Quality Policy


3D Visualizations​

TZI - Inženjering d.o.o. Logo

TZI – Inženjering Ltd. is a design company that has been actively involved in design and supervision of the infrastructure projects in BiH for the past three decades.

Our field of expertise include development of: designs, expertises, studies, tender documentation and technical supervision.

Our Services

Traffic infrastructure design​

- State / Regional / City roads
- Highways
- Railway infrastructure
- Tram infrastructure

Design of the road facilities / structures:​

- Bridges, Viaducts, Tunnels, Interchanges, Overpasses and Underpasses,
- Geotechnical projects,
- Revision and Nostrification of the project documentation

Consulting services​

- Technical consulting for investors,
- Traffic studies, Feasibility studies,
- Environmental impact studies,
- Professional supervision of road construction and road structures


We achieve our goals by:

  • Maintaining management quality system in accordance with the international standards ISO 9001:2015 (ISO IQNET, ISO SIQ)
  • Enthusiasm, experience and expertise of our staff
  • Fostering trust, respect and teamwork in our work environment
  • Continuous staff training at all levels
  • Active involvement of all employees in the quality management system
  • Continuous analysis and improvement of all work processes
  • Conducting regular internal audits

3D Video Visualizations​