SX3 has appointed Stephen Walker as Managing Director, strengthening the firm’s leadership capability as it enters its next phase of growth across audit and consulting services.
Stephen brings more than 30 years’ experience in the insurance sector, including 11 years at Covéa in a range of senior executive roles. He has also held leadership positions at Home Protect and Aviva, with deep expertise across claims operations, supply chain governance and customer outcome management.
His appointment reflects the continued expansion of SX3’s audit portfolio and the increasing demand for independent, practitioner-led assurance across delegated authority, third-party oversight and claims performance.
Strengthening Leadership as Demand Grows
Over the past two years, SX3 has broadened both the depth and scope of its work across multiple classes of business. The firm now supports insurers, MGAs and delegated partners with audit, governance and operational insight across a growing range of claims environments.
As regulatory scrutiny intensifies — particularly around Consumer Duty, customer outcomes and delegated authority oversight — insurers are seeking greater clarity, benchmarking insight and independent challenge.
Stephen will lead the day-to-day management of SX3, ensuring service delivery remains aligned to the firm’s “Quality First” ethos, while supporting the continued development of both audit and consultancy services.
Founder Adrian Gilbert will remain actively involved in the business, focusing on strategic development, market engagement and innovation, including the evolution of AI-informed audit approaches.
A Practitioner-Led Approach
Stephen’s experience spans both insurer and supplier environments, providing a balanced understanding of operational reality, commercial pressure and governance expectation.
Commenting on his appointment, Stephen said:
“SX3 has built a strong reputation for independent, practitioner-led insight. The opportunity to strengthen and scale that capability at a time when insurers face heightened operational and regulatory expectations is compelling. I look forward to working with clients and colleagues to continue delivering clarity and measurable impact.”
Adrian Gilbert added:
“This appointment is about strengthening the platform. As our work has grown in scale and complexity, it is the right time to expand our leadership capacity. Stephen brings operational credibility, commercial discipline and a shared belief that quality in delivery underpins everything.”
Stephen will begin engaging with clients and partners in the coming weeks.
