McKinsey & Company is reshaping its operating model by embedding artificial intelligence deeply into its consulting work, marking one of the most ambitious AI transformations seen in the professional services industry.
The global consulting firm now works with an estimated 25,000 AI agents alongside about 40,000 human employees, according to details reported by Business Insider. This means a significant share of McKinsey’s active workforce is now non-human, reflecting how rapidly AI has moved from experimentation to everyday execution within the firm.
Reportedly, the company has highlighted that this shift has accelerated dramatically over a short period. Less than two years ago, McKinsey relied on only a few thousand AI agents. Today, AI systems are embedded across teams and functions, supporting consultants in research, data analysis, problem-solving and the creation of customised client tools. The firm expects that within the next 18 months, every McKinsey employee will work alongside at least one AI agent as part of their regular workflow.
Unlike basic automation or chat-based tools, these AI agents are designed to operate with a high degree of autonomy. They can break down complex business problems, generate action plans and execute defined tasks with limited human supervision, allowing consultants to focus on judgment, strategy and client relationships.
A major driver of this push is QuantumBlack, McKinsey’s advanced analytics and AI arm, which employs around 1,700 specialists. AI-led engagements now account for roughly 40 per cent of the firm’s total work, underscoring how central technology has become to its value proposition.
The shift is also influencing how McKinsey generates revenue. The firm is increasingly moving away from traditional advisory-only models towards longer-term partnerships where it shares responsibility for outcomes alongside clients.

