Gather & Gather, the catering brand of facilities management firm Mitie, has secured the maximum three-star Sustainability Champion rating from the Sustainable Restaurant Association (SRA).
The caterer scored 100% for employee welfare and water efficiency. It also scored highly in community engagement (99%), waste management (87%) and use of workplace resources (81%).
Gather & Gather has implemented projects to reduce waste, maximise recycling and increase its commitment to charitable programmes such as Life Water's Drop 4 Drop campaign.
On its first accreditation in 2014 Gather & Gather achieved a two-star rating and has now seen its score move up by 11% in the past 12 months.
Allister Richards, managing director of Gather & Gather, said: "We have pursued this target relentlessly since creating the Gather & Gather brand and this totally backs up our arguments and proves that our vision for the foodservice sector and our own food values are on the right track."