Brunswick's £7.5bn total deal value was nearly £200m down on July. But the firm moved up three places and is advising French building materials firm Saint Gobain on its £3.6bn hostile bid for plasterboard maker BPB.
Financial Dynamics' advice to AP Moller-Maersk on its £1.5bn acquisition of Royal P&O Nedlloyd lifted it to third, while Tulchan Communications came back into the table in fourth position having advised Royal P&O Nedlloyd.
Finsbury, which worked on £7.2bn worth of deals, dropped to second position.
The firm is retained to Cable & Wireless, which acquired Energis owner Chelys for £674m. Smithfield, which re-entered the table in fifth, advised Thus, which had bid £800m for Chelys.
The traditional August collapse in big-ticket transactions saw Citigate Dewe Rogerson fall seven places to ninth position. CDR did not work on any of the month's 20 largest deals but handled enough smaller transactions toremain in the top flight.
Bigger ticket work saw Sam Atkin PR & Marketing enter the top ten for the first time, after supporting Ernst & Young's corporate finance work on Bupa Care Services' £328m acquisition of ANS.
DEAL WATCH - August 2005 ranking Ranking Financial PR Company No of Deal Value Deals pounds m 1 Brunswick Group 18 7,525 2 Finsbury 6 7,292 3 Financial Dynamics 20 2,958 4 Tulchan Communications 5 2,283 5 Smithfield 10 1,051 6 Buchanan Communications 26 642 7 Sam Atkin PR & Marketing 3 421 8 Gainsborough Communications 1 417 9 Citigate Dewe Rogerson 11 395 10 Equus Group 3 390 Source: ZEPHYR published by Bureau van Dijk