The move comes as the company - based in Buckinghamshire - prepares to expand into the hospitality, hotels and manufacturing sectors. Its existing clients include Harrods, H&M, Travelodge and Burger King.
The agency's brief is to run a UK-wide B2B campaign to raise TFM's profile among potential customers.
Cheshire-based Context was appointed following a non-competitive pitch, having previously worked on a number of projects for the group.