TD Williamson, headquartered in Tulsa, Oklahoma, is one of the most recognized names in Pipeline Equipment & Services. TD Williamson is globally regarded as a partner of choice for managing every pipeline integrity need, large or small. With more than 55 locations worldwide, TD Williamson has a truly global footprint. Our experts provide hop tapping & plugging, pipeline cleaning and pigging services for any pressurized pipeline system. Founded in 1920, TD Williamson is still a family-owned company, with a strong emphasis on values. We are rapidly growing and have ambitious goals to double our revenue by 2015!