V2X startup ecosystem

C Commsignia

Commsignia is a Budapest-based V2X (vehicle-to-everything) communications company that builds the hardware, stacks, and testing tools that let cars, road infrastructure, and roadside units talk to each other using ITS-G5 and C-V2X standards — the technology layer that sits underneath cooperative driving, smart intersections, and safety-critical traffic use cases. The company sells DSRC/C-V2X OBUs and RSUs, a protocol stack used by automotive tier-ones, and a conformance-testing toolset that has become one of the most widely adopted quality-assurance environments for V2X implementations globally. Commsignia has partnered with major automotive players, smart-city deployments, and government road-safety programs in Europe and the US, and is one of the most internationally respected examples of a niche but strategically important European deep-tech company built entirely from Hungary. It pairs naturally with AImotive as the 'cars that see each other' half of the autonomy stack.