Allied World Assurance Company (AWAC) has doubled its limits for excess casualty insurance as a result of the continued contraction of capacity for the coverage.

The company said the limit for AWAC's qualifying renewals and prospective insureds has increased from $25 million to $50 million.

"AWAC offers excess casualty clients flexible layering opportunities, which may include multiple-contiguous or non-contiguous layers," the company said. "The company focuses on placements for moderate to high hazard risks and has an ability to provide capacity to a number of difficult industry classes, including energy, chemical, transportation, pharmaceutical, medical devices and public entity businesses."