Arch Capital UK Expands Executive Assurance Team

LONDON--(BUSINESS WIRE)--March 10, 2004--Arch Capital (UK) Ltd., a subsidiary of Arch Insurance Group (US), has appointed Hedley Blane as underwriting manager with the UK's Executive Assurance team effective from 25 February.

Hedley joins Arch from ACE Europe where he was a senior underwriter specialising in Directors' and Officers' liability insurance. Prior to that he held a number of broking positions at HSBC and Sedgwick in London and Australia.

"I am very pleased to have someone of Hedley's calibre join our Executive Assurance team. His expertise in D&O will be invaluable to Arch as we continue to expand our financial lines business in Europe," said R T Van Gieson, President & CEO of Arch Capital (UK).

Arch Capital (UK) Ltd. is a subsidiary of Arch Insurance Group Inc, which is a division of Arch Capital Group Ltd., a Bermuda-based company that provides insurance and reinsurance on a worldwide basis through its wholly owned subsidiaries. Arch Insurance Group's principal subsidiaries - Arch Insurance Company, Arch Specialty Insurance Company and Arch Excess & Surplus Insurance Company - are rated A- (Excellent) for financial strength by A.M. Best. For more information, visit www.archinsurance.com.

Cautionary Note Regarding Forward-Looking Statements

The Private Securities Litigation Reform Act of 1995 provides a "safe harbor" for forward-looking statements. This release or any other written or oral statements made by or on behalf of Arch Capital Group Ltd. and its subsidiaries (collectively, the "Company") may include forward-looking statements which reflect the Company's current views with respect to future events and financial performance. Forward-looking statements involve the Company's current assessment of risks and uncertainties, which may cause actual events and results and prospects to differ materially from those expressed or implied in these statements. Certain information regarding such risks and uncertainties is set forth in the Company's filings with the Securities and Exchange Commission. The Company undertakes no obligation to publicly update or revise any forward-looking statement, whether as a result of new information, future events or otherwise.