ICM also offers self-service bag drop solutions for airports and airline and works with about 25 airports in the Asia-Pacific and Europe.
The company has also started experimenting with the use of biometrics for baggage processing.
About 150 ICM employees will join Amadeus as part of the deal with the Australian company becoming part of Amadeus’ Airport IT division and form part of the Strategic Growth Businesses customer unit.
Amadeus Airport IT chief Bruno Spada said: “Often the passenger experience in airports is not a good one: long queues to check bags in and disparate services and technologies that do not always speak to each other. In essence, airports are crying out for open self-service solutions to help take the friction and hassle out of the airport experience for passengers.
"By combining Amadeus’ and ICM’s software and hardware capabilities, by accelerating and introducing more self-service options, and by using the power of biometrics, this deal announced today will ensure that together we can deliver better journeys for passengers in the future”.
ICM chief executive Richard Dinkelmann said: “By combining ICM’s market-leading self-service and passenger processing solutions with Amadeus’ global reach and complementary product offering, we are now in a unique position to offer even better technical solutions to our airline and airport customers."
Amadeus president and chief executive Luis Maroto said: “The acquisition of ICM is another important milestone for our Airport IT business, as well as for our diversification strategy. It will further increase our presence in a key growth area for us, whilst bringing on board a new team, as well as a suite of products that reflect our drive for innovation.
"With this acquisition, we aim to simplify a range of complex processes for our airport customers.”
Amadeus is headquartered in Spain and listed on the Spanish stock exchange. The acquisition is expected to be finalised by the end of the second quarter of calendar 2019.