The hotel-booking site offers more than 54,800 rooms worldwide with an active consumer database of 3.5 million while it received 93 million visits for the year ending September 30, 2015.
During that period, it generated a total transactional value of £300 million while net revenues were £50 million.
Tui originally refused to disclose the details of the deal when it was announced yesterday.
Cox & Kings director Peter Kirker said the site was bough in a bid to help the operator expand its online and B2C leisure offering.
