Hadron Receives Expected AM Best Approval, Extending A- (Excellent) Group Rating to The Guarantee Company of North America USA

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LITTLE ROCK, Ark.--(BUSINESS WIRE)--Oct 16, 2025--

Hadron, a modern insurance carrier focused on innovation in the delegated authority space, today announced that AM Best has extended Hadron’s group Financial Strength Rating of A- (Excellent), Financial Size Category VIII, to The Guarantee Company of North America USA (GCNA).

This approval formally brings GCNA under the Hadron rating structure following its acquisition from Atlantic Specialty Insurance Company, a subsidiary of Intact Financial Corporation (TSX: IFC), earlier this year. The decision reflects AM Best’s recognition of Hadron’s consolidated capitalization, disciplined underwriting framework, and strong governance across its expanding platform.

“AM Best’s decision to include GCNA under Hadron’s group rating is an important step in our continued growth,” said Sam Reeder, CEO of Hadron. “It reinforces the financial strength of Hadron’s platform and the confidence in the way we are building a modern, data-driven carrier that provides stability and transparency for our MGA and reinsurance partners.”

Hadron’s A- (Excellent) rating highlights the company’s balance-sheet strength, experienced underwriting team, and technology-enabled oversight that supports its mission to modernize the delegated authority market. The inclusion of GCNA under the Hadron group rating further strengthens the company’s admitted platform, complementing its E&S capabilities and enabling Hadron to deliver broader product solutions across the U.S. and international markets. Hadron’s platform also now extends to surety, bringing modern oversight and underwriting discipline to a traditionally underserved segment of the specialty market.

Backed by more than $250 million in committed capital from Altamont Capital Partners and other investors, Hadron continues to strategically expand while maintaining underwriting discipline and transparency across its operations. The company is currently writing business in the U.S. and U.K. and has plans for future platform expansion to address the continued demand in the delegated authority market.

“This ratings alignment confirms Hadron’s momentum and long-term vision,” added Reeder. “We’re building a financially strong, well-governed carrier that partners can consistently rely on that is designed to evolve with the needs of the specialty insurance ecosystem.”

About Hadron

Launched in 2023, Hadron provides insurance capacity to select MGUs sourcing specialty insurance coverages. The firm comprises Hadron Specialty Insurance Company, an Arkansas-domiciled E&S carrier, Hadron UK Insurance Company Limited, and now The Guarantee Company of North America USA. Hadron is rated A- (Excellent) from AM Best in Financial Size VIII. For more information, please visit www.hadroninsurance.com.

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CONTACT: Media Contact:

Kelly Reilly

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COMMAND for Hadron

KEYWORD: UNITED STATES NORTH AMERICA ARKANSAS

INDUSTRY KEYWORD: OTHER PROFESSIONAL SERVICES PROFESSIONAL SERVICES INSURANCE FINANCE

SOURCE: Hadron

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PUB: 10/16/2025 12:33 PM/DISC: 10/16/2025 12:32 PM

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