ARC is one of the top three suppliers of radiolabeled chemicals in the world. Its 2007 catalog (the biggest in the industry) lists more than 3,500 radiolabeled and unlabeled neurochemicals and biochemicals for life science research. Customers include the major pharmaceutical industries, universities, and research institutions in the world.

Surendra and Karen Gupta founded ARC in 1983. It is a family owned business with world headquarters in a private campus in St. Louis, MO. It has branches in Vancouver (Canada) and Cardiff (UK). Through a network of worldwide distributors ARCs products are sold globally. In 2004, ARC received an Export Achievement Award from the US Department of Commerce. ARC was also recognized by the Regional Chamber of Commerce and Growth Association as one of the top 50 companies in the St. Louis region.