The Foreign Secretary will deliver an address to the Policy Exchange think tank on Wednesday, in which he is expected to announce close to 1,000 new diplomatic jobs will be created both within the UK and abroad.
Many of the top diplomatic roles will be open to non-civil servants, adopting a US-style model for the UK’s diplomatic service.
Mr Hunt is expected to say: “The strength of our network is its professionalism, which has given us what I believe is the finest diplomatic service in the world.
“But we must never close our eyes to the approaches and skills of other industries.”
The Foreign Secretary is attempting to boost the profile of the UK’s diplomatic service, as the country gears up to strike vital new trade deals following Britain’s departure from the European Union in March 2019.
Donald Trump’s administration employed a similar tactic, appointing Woody Johnson, billionaire businessman and owner of the New York Jets, as the US’s ambassador to London.
UK ambassadors are usually career-long civil servants, with a history of working under varying administrations.
However, US chief diplomats are appointed by the President and approved by the Senate, much like the members of the US cabinet.
Mr Hunt is expected to announce the radical departure in a bid to boost “under-represented groups” and engage individuals beyond the political class.
This will involve establishing the largest diplomatic network in a generation, which will feature 335 new diplomatic roles abroad, 328 in London, and 329 “locally engaged staff” overseas.
The Foreign Secretary is also expected to outline the importance of strong international diplomacy, in opposition to President Trump who sharply reduced the size of the US State Department.
He is expected to say: “Our network of friendships is unparalleled. But they are underpinned by something more than shared history, shared languages and shared culture.
“They are underpinned by values – democracy, the rule of law, the separation of powers, respect for individual civil and political rights, a belief in free trade – that bind us.
“When these values are under threat, Britain’s role – indeed obligation – is to defend them.
“Which is why to do so, we must become an invisible chain linking the world’s democracies.”