RELX is a global provider of information-based analytics and decision tools for professional and business customers. RELX serves customers in more than 180 countries and has offices in about 40 countries. It employs more than 33,000 people over 40% of whom are in North America. Wang Ying, the founder of Chinese vaping company Relx Technology, might be giving Yang Huiyan a run for her money for the title of ?China\'s richest woman?. The millennial entrepreneur, who also goes by the English name Kate, has even outpaced JD.com\'s Richard Liu and Baidu\'s Robin Li. History. The company, which was previously known as Reed Elsevier, came into being in 1992, as a result of the merger of Reed International, a British trade book and magazine publisher, and Elsevier, a Netherlands-based scientific publisher. The company re-branded itself as RELX in February 2015. Including the pod in, the RELX Classic measures 4-1/4? x 13/16? x 7/16?. The Classic only weighs 25 g, which makes it light enough to hold in your mouth, hands-free. It\'s not the lightest prefilled pod vape, but it\'s not too many grams away from it.