Aviation Services Ireland (ASI) is based in Dublin, Ireland and in Winston-Salem, North Carolina. The company is a leading provider of interline audit services to the airline industry. ASI provides electronic interline auditing services to major airlines around the world. ASI provides quality assurance and support in checking both inward and outward interline billings to ensure the airline customer is maximising the return from the interline process. In addition ASI also provides services in refunds and coupon evaluation for customer airlines. ASI has provided services to the airline industry since 1992 and is fully web enabled and SIS compliant. The company has a large team of revenue industry experts located in Dublin and North Carolina that specialise in Interline taxes and proration. ASI operates on a commission only basis – no fixed costs – delivering additional cash and profit for airlines – at no risk or cost to the airline. ASI supports their clients, irrespective of size or location; in clearing backlogs in improving the interline process, maximising return from interline billings and improving cash flow.