The north London-based pre-media company picked up the work after Show Media was awarded the contracts for Candy & Candy, Graff and Swarovski.
With the addition of the three new titles, FMG is now the pre-press supplier for nine magazines produced by contract publisher Show Media.
Ian Pendleton, creative director at Show Media, said: "The final printed product that the customer holds in their hands is the most important part of our work.
"It embodies the clients' brand and must be perfect. We use FMG because their commitment to top quality pre-press reflects Show Media's high standards."
FMG account director Tim Ashe added: "We're delighted to be awarded more titles. I believe it is down to our ability to be consistent and always achieve the very high standards these titles demand. It is why FMG have been successful in pre-press since 1987 and why we will continue to be so."