Maritime Transport has signed the Corporate Covenant, the document businesses use to pledge support to the armed forces.
Maritime MD John Williams signed to offer service leavers employment where possible, at its Felixstowe head office. The operator employs military leavers across the UK.
Williams said: “As a business we are benefitting from the skill and strong work ethic our service leavers are bringing to the workplace.
"They learn the role fast in an environment where you need to think on your feet and we are proud to be supporting these brilliant individuals.”
Ex-serviceman Dennis Anderson, who now works as a driver for Maritime, said he welcomed Maritime making their support for military leavers "official".
He added: : “Leaving the army can be a daunting experience, so to start at a company like Maritime, who really value the skills you’ve already gained and recognise the commitment you can offer definitely makes the transition to civilian life easier.”