Momentum in the region was driven by corporate communications, but also a "noteworthy" growth in advertising and media consulting, Havas said.
Revenues for the first nine months of this year were £711.54m, compared to £697.47m for the same period last year - a rise of 2.1%.
Havas chairman Vincent Bolloré has hit the headlines in recent weeks over plans to secure the election of Philippe Germond and Roger Hatchuel to the Aegis board. Bolloré owns a 29.1% stake in Aegis and is the group's majority shareholder.
Aegis shareholders are expected to vote against the moves at an extraordinary general meeting planned for 22 November.