Announcing his new profile on the professional networking site, the PM said he was using the platform to “connect more directly” with British businesses.
The newly-created profile lists the PM’s previous jobs in politics such as Foreign Secretary and Mayor of London, but does not include his previous work as a journalist.
Last week the PM dismissed as “absolute nonsense” claims from top aide Dominic Cummings’ father-in-law that he was planning to stand down early next year.
Sir Humphry Wakefield had reportedly suggested that Mr Johnson was on the way out because he was struggling with his health in the wake of his own recovery from Covid-19.
However, the PM insisted: “If anything, far better as I’ve lost some weight.
“Not enough, but I have lost at least a stone and a half.”
In a video launching the new account, Mr Johnson insisted he was “trying to do right” for companies across the country amid fears the withdrawal of the furlough system could lead to a spike in job losses.
He said: “I just wanted to let you know that I’m now on LinkedIn and that’s because businesses of all sizes are vital to this country and I want to connect more directly with you as we build back better, stronger than ever before.”
Downing Street said the profile had been launched to enable Mr Johnson to “engage directly with businesses and workers”, adding that it was “particularly important during the economic recovery from the pandemic”.
“You can expect to see on there a mixture of written and video content from the PM which will promote UK businesses, jobs and economic announcements, and also detail some of the visits and engagements the PM has with business,” the PM’s official spokesman added.