Maik Herodek, section manager of LSG Skychefs, a catering company at Frankfurt Airport, says its hard to create plane food that isn't plain.

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Ms. Louis ran a catering company before expanding into restaurants.

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One such executive is Ivan Massow, who set up a financial services company catering especially to gay people.

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For a longer-term solution, they decided to send a catering rig from food services company Aramark to Port Arthur.

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One measure of the reach of his campaign is found in the income statement of Compass Group, the world's largest catering company, which posted a 1% drop in food sales to British schools in its past fiscal year.

ECONOMIST: Bad for people, bad for profits

Most airline services command only thin margins (catering is one example), but a company that provides them across the world can achieve economies of scale.

ECONOMIST: Flying in circles

The company positions its Nines Tactical Earphones, as a lifestyle brand catering more to the urban gamer, Top Gear or tattoo genre.

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Thanks to the extensive training programmes as well as its back-office expertise, the company can bid for complicated contracts offering cleaning, catering and laundry services to, say, a hospital.

ECONOMIST: Service with a smile