TriMark United East - Commercial Kitchen Equipment, Supply & Design Located in South Attleboro, MA, TriMark United East is the largest distributor in the Northeast offering commercial kitchen equipment, furniture, tabletop & back of house supplies (paper, plastics & cleaning) to local restaurants and national chains. We offer a range of services to our customers from design-build, to installation, to inventory management and fulfillment of all your foodservice equipment and supply needs.