W R Berkley Corporation, an insurance holding company, has appointed Peter Kamford and Philip Welt as senior vice presidents.

Welt will have oversight responsibility for the company’s operating units that were previously overseen by Kamford.

Welt began his tenure with W R Berkley in 2004 and has served as vice president – senior counsel.

Previously, Welt was an assistant general counsel – mergers and acquisitions at a major international insurer and a corporate associate with the New York law offices of Davis Polk & Wardwell.

In a newly created position, Kamford will be responsible to co-head the placement of the company’s ceded reinsurance programs along with senior vice president Robert Gosselink.

Kamford has served as senior vice president since 2005, working with several of the company’s admitted specialty lines operating units.

Kamford has more than 30 years of experience in property casualty reinsurance, previously serving as managing director of Guy Carpenter & Company.