IHS Markit Ltd is a British information provider based in London formed in 2016 with the merger of IHS Inc. and Markit Ltd.
Some parts of this company are pre-1800.
One part of this conglomerate originally was a firm that assigns IMO identification numbers for ships, companies and registered owners. It has since grown to incorporate other companies in the information services sector, many dating back to the late 1700s and 1800s.
These include Cambridge Energy Research Associates, Global Insight, Jane's Information Group, Carfax, Inc., Prime Publications Limited, and John S. Herold, Inc.
In 2016 Englewood, Colorado, US–based IHS and London-based Markit merged. Information Handling Services (IHS) "was founded in 1959 as Information Handling Services to provide information for aerospace engineers through microfilm databases."
According to en.wikipedia