AUM Europe manages a number of specialist insurance products through the underwriting agency Maven Underwriters.
Each product serves a specific insurance or niche business sector.
There were 21.2% fewer flights in UK controlled airspace last month compared with April 2009 due to the ash cloud crisis, air traffic control services organisation Nats has said.
British Airways has operated a full long-haul service from Heathrow but its short-haul programme has been disrupted as the airline waited on a court decision over its cabin crew's planned strike.