Grant Thornton Bolsters Tech Leadership with AI and Transformation Hires
Event summary
- Grant Thornton added three senior technology leaders in July 2026: Salman Taherian as head of AI, Tom Coulis as head of transformation, and Justin Corona as CTO.
- These hires follow the late-2025 appointment of Alpa Lally as chief product officer.
- The firm is investing in AI-powered capabilities and workforce upskilling across its global platform.
The big picture
Grant Thornton's leadership expansion reflects the growing imperative for professional services firms to embed AI and modernize service delivery. The moves come as clients demand more efficient, data-driven solutions across audit, tax, and advisory services. With nearly 25,000 professionals globally, the firm is positioning itself to compete with larger consultancies in the technology-enabled services space.
What we're watching
- AI Integration Pace
- How quickly Grant Thornton can operationalize AI across its service lines following Taherian's appointment.
- Transformation Impact
- Whether Coulis' change management approach will successfully modernize the firm's technology adoption.
- Competitive Positioning
- The extent to which these hires differentiate Grant Thornton from competitors like Deloitte and PwC in digital transformation services.