Yorkshire has a mixed economy. The City of Leeds is Yorkshire's largest city and is the main centre of trade and commerce. Leeds is one of the UK's larger financial centres. Leeds' traditional industries were mixed; service-based industries, textile manufacturing and coal mining being examples.
Bradford, Halifax, Keighley and Huddersfield once were centres of wool milling. Sheffield once had heavy industries, such as coal mining and the steel industry. Since the decline of such industries Sheffield has attracted tertiary and administrative businesses including more retail trade; Meadowhall being an example. However, while Sheffield's heavy industry has declined, the region has reinvented itself as a centre for specialist engineering.
North Yorkshire has an established tourist industry with two national parks (Yorkshire Dales National Park, North York Moors National Park), Harrogate, York and Scarborough and such an industry is growing in Leeds. Kingston upon Hull is Yorkshire's largest port and has a large manufacturing base, its fishing industry has however declined somewhat in recent years. Harrogate and Knaresborough both have small legal and financial sectors. Harrogate is a European conference and exhibition destination with both the Great Yorkshire Showground and Harrogate International Centre in the town.
Coal mining was prolific in the south of the county during the 19th century and for most of the 20th century, particularly around Barnsley and Wakefield. As late as the 1970s, the number of miners working in the area was still in six figures. The industry was placed under threat on 6 March 1984 when the National Coal Board announced the closure of 20 pits nationwide (some of them in South Yorkshire). By March 2004, a mere three coalpits remained open in the area. Three years later, the only remaining coal pit in the region was Maltby Colliery near Rotherham.
Business in Yorkshire spans many different industries and has produced many large British companies that are now recognised globally. These include; Morrisons (Bradford), Asda (Leeds), Jet2.com (Leeds), Ronseal (Sheffield), Optare (Leeds), Wharfedale (Leeds), Plaxton (Scarborough), Seven Seas (Hull), Little Chef (Sheffield), Halifax Bank (Halifax), Rank Organisation (Hull), Yorkshire Bank (Leeds), Yorkshire Building Society (Bradford), Ebuyer (Howden), GHD (Leeds), Marks and Spencer (Leeds), Burtons (Leeds), Jaeger (Ilkley), Magnet Kitchens (Keighley), Reckitt and Sons (Hull), McCains (Scarborough), First Direct (Leeds), Tetley's Brewery (Leeds), Timothy Taylor Brewery (Keighley), Bradford and Bingley (Bingley), Skipton Building Society (Skipton), Bettys and Taylors of Harrogate and Provident Financial (Bradford.)