Ericsson has signed Hogg Robinson Group (HRG) on a five-year deal to manage its travel in Asia Pacific, Ghana, the Nordics, South Africa and the UK.
The travel management company has worked with the global communications firm since 1975.
Matthew Pancaldi, HRG's director of sales, said: "Our first contract was signed in 1975 and since then we have built a strong relationship delivering value, expertise and tangible benefit."
The TMC said it would provide Ericsson with both a classic and online service and claimed state-of-the-art technology and data were key if the partnership were to be successful.
Ericsson will use the travel management suite HRG Online in the UK, a piece of kit developed in-house by the TMC's own technology team.
It will include Ericsson's negotiated supplier rates, travel policy, compliance standards and comprehensive reporting options.