Navteq chose Thomson after finding that Thomson's database proved better in testing than those of several other data companies.
The supply deal will allow Navteq to add categories such as cash machines, supermarkets and service garages to its location information. In addition, Navteq will be able to introduce destination selection by postcode.
John MacLeod, executive vice-president of global marketing and strategy at Navteq, said: "Thomson has really partnered with us to understand our customers and our quality expectations."
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