Companies based in Hampshire

Twinings () is a British marketeer of tea and other beverages, including coffee, hot chocolate, and malt drinks, based in Andover, Hampshire. The brand is owned by Associated British Foods. It holds the world's oldest continually used company logo and is London's longest-standing ratepayer, having occupied the same premises on the Strand since 1706. Twinings tea varieties include black tea, green tea and herbal teas, along with fruit-based cold infusions.

thumb|Hawk-Eye camera system at the Kremlin Cup tennis tournament on 20 October 2012, Moscow

Vertu (stylised VERTU) is a Hong Kong based manufacturer and retailer of luxury mobile phones. The company was originally established in London in 1998 as a subsidiary of the Finnish telecommunications company Nokia.

British kitchen appliances manufacturer

British family-owned tea company

Scalextric is a British brand of slot car racing sets which first appeared in the late 1950s. Scalextric was invented by engineer B. Fred Francis, when he added an electric motor to the Scalex tin cars that were produced by Minimodels Ltd, his own company. The first "Scalextric" were made in Havant, Hampshire, in 1956. Hornby Hobbies acquired the company in 1968. In 2026, the Scalextric business was sold to Purbeck Capital Partners

Serco Group plc is a British multinational defence, health, space, justice, migration, customer services, and transport company. It is headquartered in Hook, Hampshire, England. The company operates in continental Europe, the Middle East, the Asia Pacific region, including Australia and Hong Kong, and North America. It is listed on the London Stock Exchange and is a constituent of the FTSE 250 Index.

B&Q Limited (short for Block & Quayle after the company's two founders) is a British multinational DIY, home improvement and garden centre retailing company, with headquarters in Eastleigh, England. It is a wholly owned subsidiary of Kingfisher plc. It was founded on 5 March 1969 by Richard Block and David Quayle.

the main Air Navigation Service Provider in the United Kingdom

Marine electronics manufacturer

Parker Meggitt (legally Meggitt Ltd) is a British international company specialising in components and sub-systems for the aerospace, defence and selected energy markets. It was listed on the London Stock Exchange and was a constituent of the FTSE 100 Index until it was acquired by Parker Hannifin in September 2022.

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Superscape was a British developer and publisher of mobile games. The company has developed several mobile games, licensed from such companies as 20th Century Fox, Universal Pictures, Sony Pictures and Global Wireless entertainment. Superscape evolved from Incentive Software, a publisher of home computer games in the 1980s and 1990s.