Brompton Bicycle Limited, trading as Brompton, is a British manufacturer of folding bicycles based in Greenford, London.The Brompton folding bicycle and accessories are the company's core product, noted for its self-supporting compact size when stored. All available models of the folding bicycle are based on the same hinged frame and 16-inch (35×349 mm) tyre size. Components are added, removed, or replaced by titanium parts to form the many variations. The modular design has remained fundamentally unchanged since the original patent was filed by Andrew Ritchie in 1979, with small details being refined by continual improvement. Ritchie was awarded the 2009 Prince Philip Designers Prize for work on the bicycle.Brompton is the largest volume bicycle manufacturer in Britain, producing approximately 50,000 bicycles each year. The company's bicycles are also available for hire.

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