The top 10 auditor networks by LSE client count are the Big Four, Grant Thornton, BDO, RSM, Mazars, PKF and Crowe. Overall, there were a total of 90 engagements and 117 departures among these top 10 firms. Five firms saw net client gains in 2022 with PKF leading the way. EY had the next highest gain in clients with five net engagements. RSM followed with four net engagements while Crowe and Mazars each gained two and one, respectively. 

In this article, Audit Analytics further examines the overall clients listed on the London Stock Exchange (LSE) in 2022.