Staff from Digby Brown Solicitors raised more than £4,200 earlier this year through a 20-mile hike from Croy to Clydesbank's International Asbestos Memorial for Clydebank Asbestos Group (CAG).
CAG chairman Bob Dickie said: "We are incredibly humbled by the supportive efforts shown by the team at Digby Brown.
"It's generous donations like this that have helped us help others since 1992.
"I would therefore like to extend a deep and warm thanks to this incredible team for their efforts in supporting not just the charity but the individuals and families who will benefit from this donation."
Fraser Simpson, partner and head of industrial disease at Digby Brown, said: "Community-led support groups provide vital services that thousands of people have relied on and will continue to rely on in the future.
"It therefore fills us with great pride to play a small part in these efforts. We see first hand the physical, emotional and practical trauma experienced by sufferers of asbestos-related diseases and indeed their loved ones.".