HTGF backs Mobility Signage with €1.8M to digitise public transport data

What's the deal? German startup Mobility SignageDealroom has a profile for this one. Try Dealroom → has raised €1.8M in a seed round led by High-Tech Gründerfonds (HTGF), with co-investment from 2bx. The company builds software that helps public transport operators modernise their passenger information systems — think real-time displays and digital signage — without ripping out and replacing legacy IT infrastructure.

Why now? Public transport authorities across Europe are under growing pressure to deliver real-time data to passengers, yet many still run on outdated backend systems. Full replacements are costly and slow. Mobility Signage offers a middleware layer that sits on top of existing systems, letting operators upgrade their passenger-facing data without a painful overhaul.

What could go wrong? The company operates in a sector dominated by large, entrenched IT vendors with long-standing contracts and slow procurement cycles. Selling to public transport authorities often means navigating complex tendering processes, which can drag out sales timelines and strain a startup's runway.

Integration with a patchwork of legacy systems also carries technical risk — each operator's setup is different, and edge cases could multiply fast.

The signal: HTGF's bet on Mobility Signage — classified by Dealroom as already at the "early growth" stage — suggests the startup has proven commercial traction with transport operators before this seed round closed. The investment fits a wider European pattern of govtech startups winning by wrapping around legacy systems rather than replacing them, a pragmatic wedge strategy in a sector where procurement cycles can outlast a startup's runway.

Read more: Tech Funding News