Transportation has been a big part of the CNBC Disruptor 50 list since its inception in 2013, and some of the original transport disruptors have become household names…

But another name on that original D50 list remains less well-known to the public, but it is a key link in planning the future of transportation: Inrix.

Now Inrix, which operates in over 60 countries and several hundred cities, collects aggregated, anonymous data from 500 million vehicles, mobile devices, mobile apps, parking lot operators, mobile carriers and smart meters, all in real-time, covering both consumer and fleet vehicles, and feeding into a system which is finding favor among public agencies and transportation planners rethinking urban mobility…

The biggest changes since its early years are moving beyond the core data to a software-as-a-service model, and that model is being adopted by its biggest-growing customer segment: cities like New York and London and additional geographies around the world including Dubai.