The latest from Adviser Rankings show that in Q4 auditor rankings have generally held firm.

KPMG retains the top spot for most stock market clients in total, with 392. PwC comes in second with 357 clients, followed by Deloitte, BDO and EY, who all have clients in the range of 200.

Despite coming in second in terms of client numbers, PwC had the highest client market cap at £1932bn, and has seen the collective worth of its clients increase by 16%.

The biggest jump was from Crowe Clark Whitehill, who increased their overall client market cap by 176%.

BDO has held its position as the auditor with most AIM clients, with a total of 145 clients, while KPMG comes in a close second with 143 clients.

While BDO holds the top spot of most clients, PwC one again has the highest market cap of AIM clients, at £29bn, an increase of nearly £4bn.

The firm with the most FTSE 100 clients is PwC, with 35, followed by KPMG, Deloitte and EY.

Meanwhile, Deloitte boasts most FTSE 250 clients, with 70, followed by KPMG, PwC and EY. KPMG overtook PwC to take the second spot, but PwC once again had the highest market cap for FTSE 250 clients.

PwC also has the most small cap / fledging clients, with 97.

Rankings by sector generally held firm, although PwC made gains in oil and gas, leaving them tied with previous front-runner BDO with 24 clients apiece.

KPMG topped the list for most clients in the technology, consumer services, industrial and financial sectors.

PwC had most clients in consumer goods, while BDO came on top for most clients in basic materials.

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