Willis took part in the Insurance Institute of Northern Ireland's first annual charity Christmas jumper day.
The business managed to raise a group total of £250, which it is gladly forwarding to the Welcome Organisation.
The Welcome Organisation is a charity based in Belfast that provides help and support for people affected by homelessness across the city.
Its range of services offers a of acceptance, tolerance and understanding more than 1,400 every year.
â For more information, visit: www.homelessbelfast.org