Llewellyn Corp Of America is focused on profits for American manufacturers, fabricators, processors, and commercial residential properties. In 1987, the company that is now known as Llewellyn Corp of America completed it’s first predominant use study. Since that time, over 40,000 confidential predominant use studies have been completed resulting in TENS of MILLIONS of dollars in sales tax savings and sales tax refunds. We have since expanded to a national service of removing sales taxes from utility bills of manufacturing, fabricating, and processing companies as well as commercial residential properties where such sales tax exemptions are available.