,Microsoft announced last week that Accenture is rolling out its Copilot AI assistant to roughly 743,000 employees worldwide. That's a workforce about the size of Denver, and it's the biggest enterprise deployment of Copilot to date, according to the joint statement released Monday, April 27, 2026.
The deal arrives at a crucial moment for Microsoft. Only 3% of the company's 450 million Microsoft 365 enterprise users currently pay for Copilot, which costs $30 per user per month. Microsoft shares have dropped 12% this year following their biggest quarterly decline since the 2008 financial crisis, Reuters reported.
Accenture CEO Julie Sweet said in the announcement that their teams are "already doing higher-value work" because of the AI tool. The company's Chief Information Officer, Tony Leraris, described Copilot as "a personal digital colleague" that changes how employees research, analyse, and work daily.
Damilare Odedina
What the Numbers Show
Accenture surveyed 200,000 employees who used Copilot during 2025. The results showed 97% of staff said the tool helped them complete routine tasks up to 15 times faster. Another 53% reported major productivity improvements, according to company data.
In one group of 200,000 licenses, monthly active usage hit 89%. When surveyed, 84% of those users said they would "deeply miss" Copilot if it disappeared.
Accenture started testing Copilot in August 2023, just after Microsoft launched the tool. The rollout began with a few hundred senior leaders, then scaled to 20,000 users before expanding to the full workforce. Tony Leraris told Microsoft that his team spent that time monitoring how people actually used the tool and adjusting their training approach.
"If Microsoft 365 Copilot weren't delivering real value, our people simply wouldn't be using it," Leraris said in an April 27 blog post on Microsoft's website. "Our high adoption rate is what shows us that there is value."
The Bigger Picture on AI Productivity
Microsoft CEO Satya Nadella discussed the Accenture deal during the company's earnings call on April 29. He called it "our largest Copilot win to date" and said Microsoft now has more than 20 million paid Copilot seats total.
Nadella told investors that weekly Copilot engagement "is now at the same level as Outlook," calling it "a daily habit of intense usage."
But not everyone is seeing similar results. A February 2026 study by the National Bureau of Economic Research surveyed nearly 6,000 senior executives at US, UK, German and Australian firms. The research found that nearly 90% said AI had no impact on employment or productivity over the past three years.
Charles Lamanna, who leads Microsoft's M365 apps and Copilot platform, told Reuters that offering multiple AI models, including Anthropic's Claude and tools like "Critique" (which uses one model to check another's output) are helping drive demand.
The same day as the Accenture announcement, Microsoft and OpenAI revealed a reworked partnership that ended Microsoft's exclusive access to OpenAI technology. This allows ChatGPT's creator to sell products across competing cloud platforms.
Financial details of the Accenture-Microsoft agreement were not disclosed.
Damilare Odedina
