Crotram is a Croatian consortium of two companies, which produces the first Croatian low-floor tram (the TMK 2200). It consists of Končar Elektroindustrija d.d. and TŽV Gredelj d.o.o., both from Zagreb. Although theoretically both companies are of the same importance in the consortium, Gredelj produces only 13% of the worth of the tram, producing only bodies for the vehicle, and Končar made general projects for the tram, electrics, electronics, and final assembly. Initially, Đuro Đaković factory was also the part of the consortium, but they have eventually left it soon after the project started, and the development and production of hydraulics and bogie mechanics was transferred to German companies SAMES Hydro-Systemtechnik GmbH & Co. KG and Henschel Antriebstechnik GmbH.

The TMK 2200 (also known as NT 2200) is a 100% low-floor tram that operates in Zagreb, the capital of Croatia. ZET (tr. Zagreb Electric Tramways, the city public transportation company), ordered 70 vehicles in 2003 after Crotram consortium won the tender on the ground of lower price, competing with offers by Siemens AG (Combino) and AnsaldoBreda, S.P.A. (Sirio).