AI & Data Science
- RAG assistants & hybrid semantic search
- Machine learning & advanced statistics
- Geospatial analysis
Processes can be complex. Let transopt simplify them.
From network design and transport modelling to AI assistants and custom applications, we work alongside you to find the bottlenecks limiting your growth, then design and build the right solution.
We believe transparency is the key to successful collaboration. That's why we listen, explain and justify every step and decision before implementing a solution.
Transopt is a small, senior consultancy led by Haris Ballis, PhD, working with a network of specialist collaborators.
We are civil engineers, operations researchers and software engineers. Our lead consultant holds a Diploma in Civil Engineering from the National Technical University of Athens, an MSc in Transport & Business Management from Imperial College London, and a PhD in Civil & Environmental Engineering from the University of Cyprus. With 10+ years across transportation engineering, operations research, geospatial analysis and software engineering, we combine rigorous modelling with hands-on software development.
That combination shows up in our work: Digital Twins for major UK rail stations, AI-driven disruption-recovery tools, and infrastructure-resilience platforms built for national agencies and international institutions. We bring the same blend of transport-modelling depth and software engineering discipline to every client, and bring in the right specialists for each project.
We also give back to the tools we rely on, with a merged core contribution to pandas and talks at the Python Athens community.
Based in Athens, we take on projects both within Greece and internationally.
Connect on LinkedIn →Alongside client engagements, Transopt builds its own tools — like Delopt, a route optimisation engine running in production today. See the full portfolio for detailed case studies from rail, government and infrastructure programmes.
View full portfolio →A delivery route optimisation engine designed and built by Transopt, live in production for operators running last-mile delivery.
Visit delopt.transopt.io →






As part of project teams at OpenSpace and Grid Advisors, this work has also supported programmes for Network Rail, HS1, HS2, Avanti West Coast, Eurostar, the UK Department for Transport, the World Bank, NIST and Innovate UK.
Whatever sector you operate in, we can help you optimise your processes.