Grant Thornton adds three to its tech leadership team
LONDON, UNITED KINGDOM — Grant Thornton has named three senior technology executives: Salman Taherian as Head of Artificial Intelligence (AI), Tom Coulis as Head of Transformation, and Justin Corona as Chief Technology Officer (CTO), the firm announced in a report from Consulting.us.
The three join Chief Product Officer Alpa Lally, who was appointed in 2025, completing a technology leadership team Grant Thornton is building to embed advanced digital capabilities across its accounting and consulting practice.
New executives to anchor AI and digital transformation
Taherian brings more than eight years of AI leadership at major technology firms, most recently as global head of agentic AI at Amazon Web Services (AWS) and global head of AI consulting at Wipro.
He holds a PhD in Computer Science from the University of Cambridge and will lead enterprise-wide AI strategy and execution across Grant Thornton’s service lines.
Coulis arrives from Deloitte (deloitte.com), where he led global transformation programs, and will direct firmwide technology adoption and change management at Grant Thornton.
“Salman’s ability to turn AI ambition into real-world results, Tom’s expertise in transformation and change management, and Justin’s leadership in enterprise technology – alongside Alpa’s product leadership – are helping us embed advanced capabilities across our multinational platform and deliver meaningful impact for our clients,” said Mike Kempe, Chief Information Officer at Grant Thornton.
Grant Thornton bolsters its mid-market technology advisory position
Grant Thornton serves mid-market clients across audit, tax, and advisory services, and the new technology appointments reflect the firm’s strategy to embed AI and digital capabilities into client engagements. The firm’s four-person technology leadership structure is designed to coordinate AI strategy, product development, transformation, and enterprise infrastructure.
Corona, who spent 26 years at Stryker most recently as VP for Data, Analytics, and Intelligent Automation, takes charge of Grant Thornton’s technology architecture, cloud platforms, infrastructure, and data strategy.
Taherian will focus on operationalizing AI across client-facing and internal service delivery.
Coulis will lead change management and digital adoption programs across the firm’s practice areas.
The appointments reflect a growing trend among professional services firms of building dedicated technology leadership to compete on AI-enabled advisory and accounting services. For the business process outsourcing (BPO) sector, mid-market firms like Grant Thornton are building in-house AI and transformation capability rather than referring technology-driven work to specialized vendors.
Building AI and digital leadership in-house signals a broader shift in how accounting firms are positioning themselves to offer comprehensive, technology-enabled services to clients undergoing digital change.
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