Campaign's Top 300 shows Miles Calcraft Briginshaw Duffy, Clemmow Hornby Inge and Vallance Carruthers Coleman Priest breaking through the top 30 barrier.
Larger independents Mother and Delaney Lund Knox Warren & Partners saw their billings grow by 163% and 41% respectively.
J Walter Thompson moved up the table from eighth to third, while Lowe saw its billings drop by 20% and fell from third to ninth place.
It was all change for the top five media agencies with MediaCom, led by chief executive Steve Allan, taking the top spot.
ZenithOptimedia's fall to second place is striking given its seemingly unassailable position at the top of the table last year. Carat slipped down to fourth behind MindShare, which continued to rise up the tables.
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