WRG Creative Communications is set to add a London base to its offices in Manchester, Wycombe and Doha as part of its plans to expand this year.
The new office - close to Oxford Street - will open in mid-July and house around 15 staff, deputy managing director Karen Perry told C&IT.
WRG has already appointed three new members of staff, including two senior producers and a project co-ordinator. Some current staff will also transfer from the Wycombe office.
"We have started the employment campaign and we are looking for more, to be honest," explained Perry.
Meanwhile, WRG accounts for the year ended October 2009 show it boosted sales by 64%, as well as increasing its profits.
Sales rose to £28,167,987 from £17,161,763, while profit after tax came in at £535,791, up from £201,673 in 2008.
The increase is partly down to acquisitions, which included protable buildings firm Tectoniks Hire, according to the accounts.
Perry added: "I accept that trading for a lot of businesses has been tough during the downturn, but we have grown and had an exceptional year. Now is the right time, with additional opportunities coming our way, to open in London. In 2009 we retained all our clients."
Clients include Orange, Virgin Vie, JJB, and GlaxoSmithKline, and Perry explained that having a broad client base meant the firm was buffered to a certain extent from sector downturns.
Board member Stuart Greaves has now stepped down as a director at WRG, but will continue to work at the firm.