The largest industrial enterprise in Rostov-on-Don of "Diamond" - the production of electronic warfare (EW) and communication of "Horizon" - the manufacturer of navigation radars for civil and military fleets of border protection, display of various purpose, electronic calculators. At present, most of the former government defense company (KB, plant management, canteen, workshops) in the early 90's fragmented into smaller subsidiaries, is used for commercial purposes - built megastore and exhibition halls, rented retail space. CEO and owner of the group of companies "Horizon" - Vitaly Mazin (part - one of the largest business area) GEA-10 - Don Tobacco bearing production - one of Russia's largest cigarette manufacturers. Currently produced displayed on the left bank of the Don, in the industrial zone Zarechnaya "Plant Quantum" - the only enterprise in Russia for production of a number of devices orientation of spacecraft (SC) ZAO "The Hammer" - the company, the main profile is the production and wholesale of mixers throughout Russia. Legmash - equipment for light industry Rostov CHP - manufacturer of heat and electricity Rostselmash - the largest manufacturer of self-propelled harvesters and forage harvesters. Revenue in 2008 - 15.762 billion rubles. Rostov plant special tools, fitting is the largest producer in southern Russia tooling: dies for cold sheet and hot stamping for all industries, roll and roll forming tool for the pipe and metallurgical company Regatta and beverage plants Southern Capital - the largest distributor and manufacturer of alcoholic Rostvertol products - manufacturer of helicopters Mi-24, Mi-26, Mi-28, Mi-35. Revenue in 2008 - 7.914 billion rubles. Part of the company are used by world-class exhibition center, hotel, supermarket, shopping centers Rostprodmash - equipment for the food industry Empils - one of Russia's largest producers of paints FSUE RNIIRS - State of Rostov-on-Don Scientific Research Institute of Radio, one of the few , who managed in the 90 years to save manpower and production. Production and development of antennas and space stations and special communication, mostly defense piezoelectrics, established in 1992 on the basis NKTB "Pezopribor" Rostov State University, develops and produces measuring pressure, level, flow and temperature. In Rostov-on-Don, the headquarters of large financial-industrial groups and holdings as "Doninvest" (bank "Doninvest", "TagAZ", "RZGA", "RoAZ" etc.), "South of Russia" ( vegetable oil production), "Gloria Jeans" (production and sale of children's and youth clothing), "Aston", "New Commonwealth" ("Rostselmash", "Empils"), "Agrokom" ("Taurus", "Donskoy Tabak") etc.