4 key ways AI changed the Big Four in 2025

Tech Insider : Business, Technology
Big Four logos
Deloitte, KPMG, PwC, and EY make up the Big Four professional services firms.

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Consulting had a year of huge change in 2025. Here's how the Big Four firms performed this year.

Tech Insider : Business, Technology
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Deloitte recorded 4.8% annual revenue growth in its most recent financial year.

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'Fragmented' Microsoft tools undercut efficiency at Amazon and Whole Foods, internal Deloitte review found

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An Amazon employee at its Fresh grocery store
An Amazon employee at its Fresh grocery store

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Social media is giving us a glimpse inside some lavish office holiday parties

Tech Insider : Business, Style
SpaceX TikTok and KPMG TikTok
TikTok is taking people inside big corporate holiday parties.

TikTok

From McKinsey to PwC, here's how elite consulting firms are racing to hire engineers — and train everyone else in AI

Tech Insider : Business, Style, Technology
Photo collage featuring the PwC and McKinsey & Company logos, a laptop displaying an AI interface, and people sitting and waiting for a job interview.

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I quit my 21-year Deloitte career after a health crisis. Work used to be my identity, but now I've redefined what real success is.

Tech Insider : Business, Politics
Headshot of Deepa Purushothaman
Deepa Purushothaman was a partner at Deloitte before quitting due to health issues.

Lesley Bohm

An ex-Deloitte consultant explains how to go from employee to corporate influencer

Tech Insider : Business, Politics, Style
Lara Sophie Bothur
Lara Sophie Bothur believes that influencers are the future of corporate communication.

Lara Sophie Bothur

I created a brand new job at Deloitte: corporate influencer. This is why your company needs one too.

Tech Insider : Business, Economy, Politics
Lara Sophie Bothur
Lara Sophie Bothur became Deloitte's in-house influencer in 2022.

Lara Sophie Bothur

Deloitte is giving the Australian government a partial refund after it used AI to deliver a report with errors

Tech Insider : Business, Technology
Deloitte

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Deloitte's global rebound is shadowed by its first revenue decline in 15 years in the UK

Tech Insider : Business, Travel
Deloitte companies that will pay you to travel the world
Deloitte's UK revenue declined for the first time in 15 years.

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