Trace Group Hold AD is a Bulgaria-based construction and engineering holding company specializing in the design, construction, reconstruction, repair, and maintenance of large-scale public infrastructure projects. Its core operations center on transportation infrastructure, including highways, roads, railways, metro systems, airports, bridges, and tunnels, as well as urban infrastructure and road marking. The company also handles environmental initiatives such as water supply and sewerage systems, gas distribution networks, wastewater treatment facilities, and hydro-technical constructions like anti-landslide measures and bank revetments. Additionally, it constructs public, industrial, residential, and commercial buildings, alongside manufacturing construction materials and providing equipment maintenance. Headquartered in Sofia, Bulgaria, and founded in 2004, Trace Group Hold AD operates prominently in the Balkan region, with activities extending to Romania, Serbia, Czech Republic, Moldova, and Greece, making it a key player in regional infrastructure development.