Aon plc has appointed Bonjay Koo (pictured) as enterprise client leader in South Korea, effective Sept. 1.
Based in Seoul, Koo will oversee the delivery of integrated risk capital and human capital services to enterprise and multinational clients in the country.
Koo will report to Craig Torgius, chief client officer for Asia-Pacific, and coordinate closely with Kevin Kim, CEO of Aon Korea.
Torgius said Koo’s appointment supports Aon’s goal of providing a unified approach to clients across Asia. “His strategic insight, collaborative leadership, and proven track record in managing complex client engagements make Bonjay the ideal fit,” he said. “His deep c-suite relationships and nuanced understanding of client strategy position him to unlock new opportunities and bring together cross-functional teams to deliver exceptional outcomes for Aon’s clients.”
Koo has accumulated over 30 years in professional services, holding senior positions at Deloitte Consulting, Oliver Wyman, Kearney, and Arthur D. Little. His work has included advising Korean conglomerates on strategy, digital transformation, mergers and acquisitions, and operational improvements.
Koo noted that he is looking forward to collaborating with local organisations to tackle complex business challenges using Aon’s resources and data capabilities. “I am honoured to join Aon and excited to drive outstanding client results,” he said.
Korea is not the only location in which Aon has been bolstering its leadership. In India, Aon recently appointed Sushant Sarin as head of strategy and commercial risk solutions. He will be based in Mumbai and report to Rishi Mehra, CEO of Aon India, joining the local leadership team.
Sarin will manage the company’s commercial risk strategy, oversee delivery of integrated solutions across sectors, and guide initiatives aligned with Aon’s global objectives.
Mehra said Sarin’s extensive industry experience is expected to help enhance client services in India.
“Sushant brings deep industry knowledge, strategic foresight, and a proven track record of building high-performing teams and businesses,” he said. “His business acumen and leadership will be instrumental in driving our India business forward and delivering better outcomes for our clients.”
Sarin has more than 30 years of experience, including serving as president of Tata AIG General Insurance. His background covers managing large-scale commercial insurance operations, overseeing reinsurance portfolios with gross written premiums over US$1.75 billion, and leading transformation projects in underwriting and client engagement.
A fellow of the Insurance Institute of India, Sarin said he aims to work with Aon teams to provide solutions that help clients respond to evolving risk environments.
“I look forward to working with our talented teams to deliver innovative solutions that help clients navigate complexity and make better decisions,” he said.
The leadership changes follow Aon’s Q2 2025 financial report, which recorded total revenue of US$4.2 billion, an 11% increase from the same period last year.
The growth included 6% organic revenue expansion, contributions from the NFP acquisition, and a 1% foreign exchange effect.
Risk Capital revenue rose 8% to US$2.9 billion, while Human Capital revenue increased 15% to US$1.3 billion.
Operating expenses grew 6% to US$3.3 billion, reflecting acquisition costs, higher intangible asset amortisation, and investments in organic growth initiatives.
