Grant Thornton Launches Enterprise Assurance Services Practice with AI and ISO Certifications
Event summary
- Grant Thornton LLP launched its Enterprise Assurance Services practice on September 23, 2026, consolidating specialized assurance offerings under one delivery model.
- The practice includes provisional accreditation for AIUC-1 certification for agentic AI systems and ISO certification for information security programs.
- The new practice unites capabilities such as SOC services, employee benefit plan audits, sustainability reporting, and finance and transaction-focused attestation.
- The practice is backed by team members from firms on the Grant Thornton multinational platform, equipped with proprietary technology and a coordinated delivery model.
The big picture
Grant Thornton's new Enterprise Assurance Services practice responds to growing client demand for third-party assurance across emerging areas such as risk, technology, sustainability, and trust. The launch reflects broader industry trends toward consolidation of specialized assurance services and the increasing importance of AI and ISO certifications in building stakeholder confidence. The practice positions Grant Thornton to serve a broader range of client needs while maintaining its focus on quality and expertise.
What we're watching
- AI Assurance Growth
- How the demand for AIUC-1 certification will evolve as organizations seek third-party validation for AI systems.
- Regulatory Compliance
- Whether the new practice can help clients streamline compliance and reduce duplication in reporting processes.
- Market Differentiation
- The pace at which Grant Thornton can differentiate itself from competitors by integrating specialized assurance offerings under a unified model.