The overall AIM table is still lead by BDO, which has increased its advantage over KPMG and Grant Thornton with an additional 3 clients compared to the previous quarter, according to Adviser Rankings.

This gives BDO 152 clients, 34 ahead of KPMG’s 118 and 41 ahead of Grant Thornton’s 111.

BDO has also taken the lead for various sectors. IT leads the way with client numbers in the basic materials rankings, ahead of PKF Littlejohn and Deloitte. It has also pulled further ahead in the consumer goods rankings due to its appointment by Agriterra and Wynnstay Group during the quarter.

Also BDO has joined Grant Thornton at the head of the Industrials rankings after it was brought in to act for Empresaria Group, an international staffing group. In the Oil and Gas sector, BDO has taken the lead with KPMG, PwC, Deloitte and Grant Thornton UK following respectively.

Earlier this week BDO completed its merger with Moore Stephens LLP, which could see it increase its lead in the AIM rankings even further. The merger saw the London, Birmingham, Reading, Bristol and Watford offices of Moore Stephens LLP join the BDO brand. It is likely that that this will make the combined firm the fifth biggest firm in the UK.

PwC has taken lead and is at the head of the FTSE AIM 100 rankings with 23 clients, after a gain of one. EY takes fourth place with 12 clients, after a gain of one.

KPMG takes second place, and a solitary net gain has meant EY and Deloitte share fourth place.

The AIM 50 rankings does not highlight any radical changes to the order. PwC is ahead with index numbers and their collective market value. Deloitte follows in second place and KPMG in third. EY take fourth place by overall client numbers.