As cities worldwide wrestle with gridlock, air pollution, and road safety challenges, smart traffic management has emerged as a vital solution. By harnessing AI-driven analytics, connected sensors, and vehicle‑to‑everything (V2X) communications, municipalities can optimize signal timing, dynamically reroute vehicles, and streamline multimodal transit. Below, we explore the major players shaping this rapidly expanding industry, from global tech giants to nimble innovators.