The recent order by the German-based bus operator West Verkehr will see the company deliver a dozen Kite Hydroliners following a Europe-wide tender process.
The buses will be rolled out across Geilenkirchen, a town near the border with Netherlands.
The order is a significant one for the company as it continues to break into the global sustainable transport market. In the summer the Co Antrim firm announced that it was engaged in five major global tenders and had plans for a new hydrogen hub.
Last month it was revealed that the firm had signed a deal to provide up to 150 hydrogen buses for the site of the Sizewell C nuclear power station in Suffolk.
This will be the second German deal for the company, which last year signed a deal with German Bus operator Regionalverkehr Köln GmbH (RVK) to supply up to 60 Kite Hydroliner single deck buses.
The new buses will be manufactured at Wrightbus’s headquarters in Ballymena. The manufacturer which currently employs over 1,200 people is planning to double its workforce by 2026.