Arch Names Vonnahme EVP Surety; Schmalz to Retire

July 31, 2007

Arch Insurance Group, a subsidiary of Arch Capital Group Ltd., announced that Mark C. Vonnahme has joined its leadership team as the executive vice president responsible for its surety business.

Vonnahme succeeds Brian Schmalz who will retire at year-end. Schmalz, after 30 plus years of a distinguished career in the surety business, joined Arch in 2003 and worked diligently over the past four years as he built Arch Surety into one of the top 10 largest surety operations. He served as chairman of the Board of Directors of the Surety Association of America and has had a distinguished career in the insurance industry, leading business for Reliance Insurance Company and Kemper Insurance.

Vonnahme has served in a number of senior positions with CNA. He led CNA’s Surety business unit – first serving as chief operating officer, then president and CEO, a position he held from 1996 until 2003.

A certified public accountant, Vonnahme has been a board member of various surety organizations. He is a past chairman of the Board of Directors of the Surety Association of America. He currently serves on the Board of the Directors of the Casualty Actuarial Society. Since 2003, Vonnahme has been a member of the faculty of the University of Illinois where he was the Fox Family Distinguished Clinical Professor as a faculty member of the Department of Finance, College of Business. He holds both a master’s degree and a bachelor’s degree in finance from the University of Illinois at Urbana-Champaign.

Source: Arch Insurance Group,

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