Hong Kong-Zhuhai-Macau Bridge

Cestel develops portable bridge weigh-in-motion (WIM) systems for vehicles and monitoring the structural properties of roads, pavements and bridges.

traffic-lines develops road marking removal solutions that are effective without damaging surfaces and can enable instant remarking.

Tolplan is an independent South African company of professional engineers and financial and information technology professionals who offer a variety of specialized toll road management and engineering consulting and information technology services. The full-time core personnel of the company amounts to about 40.