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related company UK US noun [C]
► FINANCE, WORKPLACE a company that controls or is controlled by another company, often one that is in the same business group: »
Many small family companies have grown into enormous conglomerates with dozens of related companies spread throughout the world.
»Non-executive directors could not be seen as independent if, in the past three years, they had a business relationship with a related company.
Financial and business terms. 2012.