Why are there duplicate companies?

The single source of our input data is Companies House. Companies will often register multiple entities of what seems like the same company. We hold group structure data to identify where companies are linked to one another in a parent-child relationship. Tesco as an example These are two of Tesco entities:

They are registered as separate entities on Companies House even though you could refer to them as the same company. As you can see in the screenshot below, TESCO STORES LIMITED is a child (or sub-child) of the ultimate parent, TESCO PLC:

We are currently researching a method to effectively collapse all child companies under the ultimate parent company within the platform. You can remove duplicate companies using “Remove subsidiary companies”:

You can read more about removing subsidiary companies here.