Delegated authority specialist Hadron is set to expand its global operations as it enters the European Union in early 2026, following growth in the US and UK markets over the past year.
As risk and underwriting managers consolidate and scale, Hadron said that it aims to serve as a platform for specialty underwriters, managing general agents, managing general underwriters, and programme administrators, as well as reinsurance partners.
Since its launch in late 2023, Hadron has established a multinational platform, supported by over US$250 million in committed capital from Altamont Capital Partners and other institutional investors. The company employs more than 75 staff globally, covering underwriting, operations, technology, regulatory, and risk management.
“Our growth this year reflects the strength of Hadron’s model, which balances underwriting discipline with innovation and scale,” said Sam Reeder (pictured above), CEO of Hadron. “Our specialty insurance platform is purpose built for delegated authority, combining transparency, speed, and long-term alignment, at the pace and scale of our MGA partners, with the oversight and stability reinsurers have come to expect.”
Over the past 24 months, Hadron has set up four core insurance entities, either as new ventures or through acquisitions, all operating on a unified infrastructure. In the UK, Hadron has added 10 new MGA programmes in the past year, including partnerships with Inperio (London) Limited, Elevate Specialty Limited, and Aspect Labs Limited. The company projects gross written premiums in the UK to exceed £200 million by the end of 2025.
As part of its UK growth strategy, Hadron has also strengthened its presence in the agricultural insurance sector. In August, Hadron UK Insurance Company entered into a five-year capacity agreement with iFarm Underwriting, a managing general agent specialising in farm and agricultural cover.
Hadron’s International team, led by Colin Johnson, now includes 20 members, with further recruitment planned for early 2026. The company is advancing its EU launch, supported by recent leadership appointments.
Amélie Breitburd and Pascal Van Eyken have joined as independent non-executive directors, and David Franco has been named chief risk officer, subject to regulatory approval. Breitburd brings experience from AXA and Lloyd’s Europe, Van Eyken has held senior roles at AG Insurance and Willis Towers Watson, and Franco previously led strategic intelligence at Lloyd’s Europe, focusing on emerging risks.
“Europe is a natural next step for Hadron’s expansion,” said Colin Johnson, CEO of Hadron International. He noted that the company is investing in people, technology, and governance to support cross-border growth and that the new leadership appointments reflect confidence in Hadron’s platform and ambitions.
Hadron currently manages about 50 insurance programmes and expects gross written premiums to rise in 2026. Its proprietary Collider platform supports data ingestion, risk analytics, and operational transparency, enabling monitoring across the delegated authority value chain.
Hadron’s move comes amid a broader trend of US-based insurers and intermediaries expanding across the European Union to capture new growth opportunities and respond to evolving regulatory environments.
Chubb has continued to grow its European footprint, recently expanding its specialty and commercial lines operations in France, Germany, and the Benelux region. The insurer has also invested in digital distribution and local underwriting talent to better serve European SMEs and multinational clients.
The Hartford entered the European market through partnerships and specialty lines, focusing on multinational clients and leveraging its US expertise in liability and property insurance.
AIG has reinforced its European presence by enhancing its Luxembourg-based operations post-Brexit, ensuring continued access to the EU single market and investing in local claims and risk engineering resources.
Marsh McLennan and Aon have both made strategic acquisitions and investments in European MGAs and specialty brokers, aiming to support cross-border clients and expand their delegated authority solutions.
Liberty Mutual has grown its European specialty and reinsurance business, particularly in Spain, Italy, and the Nordics, with a focus on financial lines, cyber, and casualty.
These expansions are driven by demand for specialty insurance, delegated authority models, and the need to serve global clients with consistent standards and innovative digital platforms. US-based firms are leveraging their scale, capital, and technology to compete with established European insurers and to support the growing MGA and programme business across the continent.
