Aon enhances industry-leading Reinsurance team with executive appointments

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Aon plc (NYSE: AON) has announced significant leadership appointments in its Reinsurance division. Alfonso Valera has been named CEO of International (UK, EMEA, APAC), while Steve Hofmann becomes CEO of Americas (North America, Latin America). Additionally, George Attard takes the role of Global Head of Strategy, and Tomas Novotny assumes the position of Chairman of International.

The appointments reflect Aon's commitment to strengthening its Reinsurance solutions business, with the company emphasizing increased investment in innovation, AI, climate advisory, and Better Decisions Labs. All appointees bring extensive experience and leadership backgrounds within Aon, demonstrating the company's focus on internal talent development and strategic growth.

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Alfonso Valera named CEO of International, Steve Hofmann as CEO of Americas, George Attard as Global Head of Strategy and Tomas Novotny as Chairman of International

DUBLIN, July 16, 2025 /PRNewswire/ -- Aon plc (NYSE: AON), a leading global professional services firm, today announced the appointments of Alfonso Valera as CEO of International for Reinsurance, responsible for UK, EMEA and APAC, and Steve Hofmann as CEO of Americas for Reinsurance, responsible for North America and Latin America. The firm also announced the appointment of George Attard as Global Head of Strategy for Reinsurance and Tomas Novotny as Chairman of International for Reinsurance.

"We are delighted to promote Alfonso, Steve, George and Tomas into these important leadership roles as we accelerate the ambition and velocity of our industry-leading Reinsurance solutions business," said Marcell, who leads Aon's integrated Risk Capital and Human Capital capabilities across the firm's Reinsurance, Commercial Risk, Health, Wealth and Talent teams. "These appointments reflect the depth and quality of leadership across our firm. Together, they bring decades of leadership experience, deep client relationships, market knowledge and domain expertise. Supported by outstanding talent and experts across our regions, they will help shape the next stage of our growth."

"We continue to invest in our business, our capabilities and our colleagues – and in the areas where we see the greatest opportunity to help our clients make better decisions," added Marcell. "With expanded investment in innovation, AI, climate advisory and our Better Decisions Labs, we are unlocking new tools and proprietary analytics to help clients accelerate decision-making, strengthen relationships and drive profitable growth."

Valera previously served as Co-CEO of EMEA for Reinsurance and, before that, as CEO and General Manager of Aon Re Iberia, among other leadership roles. Hofmann previously served as U.S. CEO of Reinsurance and earlier as U.S. Co-President of Reinsurance. Attard most recently served as CEO of Reinsurance for APAC, following 17 years at the firm leading strategy and client engagement in the region. Novotny has served as Co-CEO of EMEA for Reinsurance, Chairman of the Board of Central and Eastern Europe for the firm and as a broking leader for Aon based in Prague.

For more information about Aon's Reinsurance Solutions capabilities, visit: https://www.aon.com/en/capabilities/reinsurance

About Aon
Aon plc (NYSE: AON) exists to shape decisions for the better — to protect and enrich the lives of people around the world. Through actionable analytic insight, globally integrated Risk Capital and Human Capital expertise, and locally relevant solutions, our colleagues provide clients in over 120 countries with the clarity and confidence to make better risk and people decisions that protect and grow their businesses.

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SOURCE Aon plc

FAQ

Who are the new executive appointments at Aon's (NYSE: AON) Reinsurance division?

Aon appointed Alfonso Valera as CEO of International, Steve Hofmann as CEO of Americas, George Attard as Global Head of Strategy, and Tomas Novotny as Chairman of International.

What regions will Alfonso Valera oversee as Aon's new CEO of International for Reinsurance?

Alfonso Valera will be responsible for UK, EMEA (Europe, Middle East, and Africa), and APAC (Asia-Pacific) regions.

What is Steve Hofmann's previous experience at Aon before becoming CEO of Americas?

Steve Hofmann previously served as U.S. CEO of Reinsurance and earlier as U.S. Co-President of Reinsurance.

What new areas is Aon investing in for its Reinsurance business?

Aon is expanding investment in innovation, AI, climate advisory, and Better Decisions Labs to enhance client decision-making and drive profitable growth.

What was George Attard's previous role at Aon before becoming Global Head of Strategy?

George Attard most recently served as CEO of Reinsurance for APAC, with 17 years of experience leading strategy and client engagement in the region.