Danieli & C. Officine Meccaniche S.p. A. designs, builds, and sells plants for the iron and steel industry in Europe, Russia, the Middle East, the Americas, and South East Asia.

It operates through two segments, Plant Making and Steel Making. The company designs and builds plants for various process areas, including mines; pellet production plants; blast furnaces; direct reduction; scrap shredders; steelworks for production of liquid steel; and continuous casting for blooms and billets, slabs, and thin slabs. It also designs and builds rolling mills for long products and seamless tubes; lines for welded tubes; hot and cold rolling mills for flat products; process lines for flat products; and plants for dimensional checking and for non-destructive quality control, and conditioning plants.

In addition, the company offers plants for secondary processing, such as peeling, straightening, 2-roll reeling, and drawing machines; forging presses and manipulators, and forging plants; extrusion presses for ferrous and non-ferrous materials; plants for longitudinal cutting and for transversal cutting; plant automation systems; and cranes and lifting equipment. Further, it is involved in the production and sale of special steel comprising ingots, blooms, billets, and forged and rolled products; and structural steel comprising high carbon steel, as well as case-hardened, hardened and tempered, and surface hardened steel for use in various engineering components. The company was founded in 1914 and is based in Buttrio, Italy.