Middlesbrough F.C. with supporters' clubs across the globe. The largest supporters' clubs include the Official Supporters' Club, the Middlesbrough Disabled Supporters' Association, Yarm Reds, Red Faction and Middlesbrough Supporters South. Middlesbrough supporters' main rivals are Sunderland (with whom they contest the Tees–Wear derby), Newcastle United (with whom they contest the Tyne–Tees derby), and Leeds United, a fact confirmed by planetfootball.com's 2004 survey. Carlisle United see Middlesbrough as their biggest rivals, but Middlesbrough supporters have not reciprocated, as they do not see Carlisle as a top three rival. The nickname "Smoggies" was first used as a derogatory term by opposing supporters; it relates
Middlesbrough 16% of Middlesbrough's population in 1871. Business in Middlesbrough is still dominated by the nearby chemical industry which until 1995 in this locality was largely owned by Imperial Chemical Industries (ICI). The fragmentation of that company led to many smaller manufacturing units being owned and operated by a number of multinational organisations. The last part of ICI itself completely left the area in 2006 and the remaining companies are now members of the Northeast of England Process Industry Cluster (NEPIC). The port of Teesport, owned by PD Ports, is also vital to the economy of Middlesbrough and the port owners