AI-First Shift: How Consultants Move Beyond Hourly Billing

For decades, IT services firms billed by the hour and staffed by the headcount. More consultants on a project meant more revenue, and automation was sold as a line item, not a threat to the business model itself. AI is breaking that arithmetic. When a few engineers with the right tools can do what used to take a full bench of staff, the old pitch, more people equals more value, stops making sense.

Mastech is testing what replaces it, starting with its own operations. Under an initiative called Autonomous Enterprise, the company has turned itself into what it calls customer zero, applying AI, automation and agentic workflows to its own Finance, HR, IT, Security and operations teams before pitching anything to clients. Mastech says the effort has already produced a 67% productivity gain internally, achieved by hunting down manual, repetitive tasks and rebuilding those workflows around AI agents rather than human cycle time.

The bigger question is what a services company owes clients once productivity stops being the product. Kannan Sugantharaman, Mastech's Chief Finance and Operations Officer, has a view on where that credibility has to start.