Japanese agency group Dentsu Inc announced today the completion of its acquisition of London-headquartered Aegis Group, taking the expanded Dentsu Group’s presence to 110 countries.

Dentsu president and CEO Tadashi Ishii called it a “transformative deal”, saying it was a major step towards realising the group’s vision of a “client-centric, global network.”

Outside Japan, Dentsu and Aegis’ operations will now occur under the name, Dentsu Aegis Network. Headquarted in London, the new network will govern the Dentsu Network and Aegis Media businesses, which will continue as separate entities.

All the network companies that comprised the former Aegis Group (Carat, iProspect, Isobar, Posterscope, Vizeum and Aztec) will continue their operations within the Dentsu Group under the Aegis Media banner.

Taking on the role of executive chairman of the Dentsu Aegis Network is Tim Andree, who was previously senior vice president of Dentsu Inc and CEO of the Dentsu Network. Jerry Buhlmann remains as CEO of Aegis Media, and has also been appointed CEO of the Dentsu Aegis Network

The acquisition process began in July last year and was approved at Aegis’s shareholder meetings on in August. Today’s new comes as Chinese regulators gave the  deal the all-clear in relation to anti-monopoly laws.