Amentum, the Dublin based commercial aircraft asset management company, has announced its management buyout from former parent HSH Nordbank. Amentum started seven years ago as the aviation asset and remarketing arm of HSH Nordbank to manage its aircraft leases. It has since progressed from captive lessor to dedicated third-party asset manager. HSH Nordbank will continue to work with Amentum, which will provide remarketing and advisory services. The buyout was led by Jan Melgaard, executive chairman; Martin Bouzaima, CEO; and Mitchel Simpson, CFO. Amentum’s portfolio currently comprises 48 aircraft valued at $2.3bn.