The planned expansion will include taking on new staff in London, New York and Los Angeles, as well as opening new offices, the locations of which will be announced in the future.
"We're continuing to grow and we've got to keep up with the expansion that we have," said Pete Picton, deputy publisher of Daily Mail and General Trust (DMGT), speaking to Journalism.co.uk. "It's no secret that we want to expand in other areas."
In a press release accompanying the announcement, DMGT publisher Martin Clarke said the outlet was looking to hire the same calibre of journalists in the new offices as already exist in the organisation. Despite not giving details of the precise nature and number of roles to be made available, Clarke said there would be opportunities from reporters and section heads to senior level staff such as site editors.
"All these things depend on skilled journalists," continued Picton. "The success of the Mail Online is down to the journalists we already have so it's a matter of finding the same kind of talent elsewhere."
In May, data from the Audit Bureau of Circulation put the Mail Online's unique monthly visitors at almost 129 million, a month-on-month increase of 7.99 per cent. The website consistently breaks its own record as the most visited newspaper site in the world.
"Each time we set targets we break them," said Picton. "So we went past 100 million, then 120 million, and we still have ambitions over and above that. If it works we need to keep doing it."