Allied World

Allied World Reinsurance, part of Allied World Assurance Company Holdings, Ltd., is a global provider of reinsurance solutions. It reported gross premiums written of $7.2 billion in 2024, which highlights its strong presence in the reinsurance market.

History of Allied World Reinsurance

Allied World Re's parent company began in 2001 with just four employees in Bermuda. It started as an excess insurer and expanded into global reinsurance over the years.

Today, Allied World operates worldwide with offices across North America, Europe, and Asia. Other key milestones in Allied World's history include:

• 2002: opened first European office in Ireland
• 2003: established London office to expand European presence
• 2008: opened office in Zug, Switzerland, strengthening European operations
• 2009: expanded into Asia with offices in Hong Kong and Singapore
• 2010: relocated headquarters from Bermuda to Zug, Switzerland
• 2017: acquired by Fairfax Financial Holdings for $4.9 billion
• 2019: re-domesticated back to Bermuda under Fairfax's structure
• 2021: celebrated 20th anniversary, marking two decades of growth

In its most recent phase, Allied World Reinsurance strengthened client partnerships with a new global engagement strategy. It created a senior leadership role to lead reinsurance service and deepen broker relationships.

Reinsurance products and services

Allied World Reinsurance offers global treaty and facultative reinsurance for a wide range of business lines. Its underwriting teams tailor solutions to client exposures using flexible structures and deep market knowledge:

Risk-based treaty reinsurance products

• general casualty treaty: covers liability from auto, umbrella, municipality, products, and workers comp
• marine and aviation treaty: includes cargo, hull, offshore energy, and aircraft liability exposures
• professional liability treaty: protects against cyber, D&O, E&O, life sciences, and medical claims
• property lines treaty: supports commercial, engineering, and personal property, including CAT and per-risk
• specialty lines treaty: addresses aviation, energy, agriculture, satellite, and accident-related risks

Regional and custom services

• regional reinsurance: solutions tailored to North America, Europe, Latin America, Asia-Pacific, and the Caribbean
• customized structures: flexible treaty terms based on per-risk, CAT XOL, or proportional basis
• client-first underwriting: combines actuarial skill with broker coordination to craft competitive quotes

Through its global offices and Syndicate 2232, Allied World Reinsurance serves clients across key global regions. Its solutions are built to match diverse exposures with long-term, flexible protection.

Culture and core values

Allied World Reinsurance builds its culture on integrity, fairness, and doing the right thing. Its Code of Business Conduct and Ethics supports this commitment across all teams.

It also follows Fairfax Guiding Principles built on loyalty, trust, and an entrepreneurial mindset:

• honesty and integrity: core to every relationship and never compromised
• team players: no egos or politics, loyalty and respect are expected
• hardworking: strong work ethic without sacrificing family priorities
• entrepreneurial: risk-taking is supported, and mistakes are lessons
• results oriented: focus stays on performance, not internal politics
• having fun: work culture encourages enjoyment and balance

All staff follow both Allied World and Fairfax codes, built on integrity and ethical conduct.

Workplace environment and benefits

Allied World Reinsurance builds a culture of diversity, inclusion, learning, and global collaboration across teams and roles:

• global network: connect with colleagues across regions and disciplines
• valued input: employee ideas and opinions are heard and respected
• internal mobility: explore roles across departments and global offices
• career growth: access mentoring, tuition aid, and certification bonuses
• belonging culture: staff feel included and endorse it as a great workplace

The company supports community service and partners with groups solving real social and environmental issues.

Environmental support

Allied World Reinsurance works with the National Wildlife Federation to protect natural habitats and ecosystems. It limits thermal coal exposure by aligning underwriting rules with the Paris Agreement. Clients get access to environmental webinars, expert support, and risk-focused white papers online.

The future at Allied World Reinsurance

Allied World Re joined a three-year capacity deal with Aqueous Underwriting and Sompo. This supports SME growth in the UK, especially in pubs, restaurants, and hotel risk coverage. The company continues building smart market ties and flexible solutions for changing client needs.

AM Best raised the credit ratings of Fairfax and its company, Allied World Assurance Holdings. The change shows strong results, steady capital, and smart risk practices across the group. This helps Allied World Reinsurance stay trusted and grow its role in global risk protection.