The London-based agency has made four redundancies following the loss of its Skype account last month.
3 Monkeys' MD Annabel Dunstan said the redundancies were made to remain competitive following the agency's expansion. She added that the agency was concurrently hiring three people in other areas of the agency.
Ptarmigan and Tangerine PR both made job cuts in recent months. FD is also understood to be considering redundancies but declined to comment.