Allied World Assurance Company Holdings, a provider of new property, casualty and specialty insurance and reinsurance solutions, has restructured its senior-level management in Bermuda, Europe, and the US.

In Bermuda, the company has appointed Tracey Gibbons, current vice president of casualty treaty reinsurance, as senior vice president of specialty reinsurance. Marchelle Lewis, current vice president of treasurer, has been named as the new senior vice president of treasurer.

In Europe, Gary Lill, vice president of professional lines, has been named as the new senior vice president and European professional lines manager. Ed Beckwith, vice president of errors and omissions (E&O), has been appointed as senior vice president and European professional indemnity manager.

In the US, John Gauthier, senior vice president, chief investment officer, has been named as executive vice president, chief investment officer. Joseph Labieniec, assistant vice president of E&O, has been appointed as new vice president for E&O.

Scott Carmilani, chairman and CEO, said: “I am pleased to recognize the outstanding contributions of these individuals to the growth and sustainability of Allied World. Their commitment to our organization is exemplary and I am pleased to acknowledge their accomplishments.”

Katherine Richardson, senior vice president and global head of human resources of Allied World Assurance, said: “Allied World proactively promotes the career growth of its employees. Attracting and retaining talent is a critical part of our organization’s culture and I am pleased that our executive management team encourages upward movement from within.”