The Leeds-based firm, which has turnover of around £32m, has also introduced a scheme to cut down on window envelopes.

TLG has claimed that the reduction in the use of window envelopes gives better doormat presence and also goes some way to allaying concerns about the direct mail industry’s environmental credentials.

James Hewlings, TLG executive director, said: “Environmental issues are becoming more and more important to us and our clients, and winning FSC accreditation really means a lot to us.

“This year so far has shown that TLG is a company that is flourishing and responding to market demands while maintaining an environmentally conscious approach.”