Big Four Dominate U.K.'s Booming Government Consulting Market

The Big Four accounting firms increasingly dominate a U.K. government consulting market that has expanded rapidly over the past five years, a report showed Thursday.

The four—Deloitte LLP, Ernst & Young LLP, KPMG LLP and PwC, also known as PricewaterhouseCoopers LLP—made up all but one of the five largest providers of management consulting services to the government in 2021, according to a study by Tussell, which tracks U.K. government contracts.

• The market’s size has more than tripled since 2016, reaching 2.5 billion pounds ($3.4 billion) in 2021, Tussell said. Deloitte was the largest firm, followed by the only non-Big ...