Reuters, headed by ex-Brunswick man Ed Williams, was advised by Brunswick as it sewed-up an £8.7bn deal with rival Thomson. Canadian firm Thomson was advised by Finsbury, which moved up a place from last month to second after the acquisition.
FD fell from the top slot to third, but still worked on more than £20bn-worth of deals.
It advised British building material firm Hanson as it was bought for £7.9bn by the German owner of Lehigh cement. Finsbury aided the acquiror.
A busy month for the top three agencies was rounded off by continuing work on Vodafone’s takeover of 67 per cent of Indian mobile operator Hutchison Essar Telecom. Vodafone used Finsbury while Hutchison Essar used Brunswick.
Edelman steals fourth place this month, with £2.8bn-worth of work. The agency advised LionOre as it received more attention from mining firm Xstrata.
Citigate Dewe Rogerson completes the top five, ahead of Maitland – both advising on more than £1bn-worth of deals. M: Communications, College Hill, the German arm of FD and Hudson Sandler round off the top ten.
A marked feature of this month’s Deal Watch is the preponderance of the top three agencies.
Contributing over three-quarters of the total deal value across the month, Brunswick, Finsbury and FD also contributed to 15 of May’s top twenty deals by deal value. They also worked on a combined 73 deals, an unprecedented hegemony in the monthly statistics.