"We were in the cruise business. In the airline business. In the fitness clubs business. In the hotels business."
"I thought I'd been quite smart and diversifying everything. But I had to sell 85 per cent of my shares in Virgin Galactic to keep everything on track."
Coming into the pandemic with more debt than its rivals, there was a strong suspicion that Virgin Atlantic would be one of Covid's corporate casualties. Too small to access the state aid provided to its larger rivals such as British Airways, and too big to access small company financial support, the airline was left floundering.
Branson's apparent attempts to save the business made him a pandemic villain in Westminster. It was all a misunderstanding, he says.
As the first wave of coronavirus swept across the UK, Virgin Atlantic's chairman wrote to the Government, stressing the need for financial support across the whole aviation sector. Branson says this was incorrectly interpreted as a billionaire asking taxpayers for a bailout.
"We weren't looking for a begging bowl for Virgin Atlantic," he says. "They wrote a letter without me actually knowing that they've written it.
"With the crisis intensifying, and airlines grounded on a scale never seen before, Branson later offered to mortgage Necker Island in return for financial support."
On a purely selfish basis I should have let Virgin Atlantic go on two or three occasions in my lifetime, with the pandemic being one of them," he says. "But it was something that we felt, I felt, that the public would be very sad to see Virgin Atlantic go.
"The airline's fight for survival was further complicated by, what Branson claims, were interventions by its bitter rival.
Branson's decades-long feud with British Airways spans the "dirty tricks" scandal of the early 1990s and in 2012 betting Willie Walsh, the flag carrier's chief, that Virgin Atlantic would survive the following five years. Walsh famously pledged to take a "knee to the groin" if he was wrong.
Because of its stronger finances and bigger scale, BA's parent company IAG received billions of pounds in state-backed loans from the UK and Spanish governments. BA "played a blinder" during the pandemic, Branson says. "Why were there never any articles about the [money] that British Airways got from the Spanish government [and from] the British government?"
They played a really good poker hand. Behind the scenes, they were sticking the knife in. They were saying they didn't need help [and], just hoping that we would topple."
Branson and the team at his airline were up for the fight, however. "We just battened down the hatches. And everybody worked day and night to prove people wrong. I don't think anybody thought we'd survive," he says, staring intently.
"I don't think you did, reading your articles."
Ultimately, Branson rescued Virgin Atlantic "at the expense of another baby" - namely his space tourism company - Virgin Galactic.As a listed company in the US, the entrepreneur was able to sell his shares in the business and use the proceeds to save his airline.
He says: "[It was] in the same way that when, many, many years ago, BA tried to drive Virgin Atlantic out of business - I had to sell Virgin Records to keep things on track.
"The toll that the pandemic has left on Branson is plain to see. He may have been thousands of miles away in the Caribbean, but it was hard not to take the attacks personally.
A new edition of his memoir, Losing My Virginity, will be released later this year with a section that sets out the pain of those difficult months."
I kept a diary. And I've written exactly how I felt about it in the book that covers the Covid time and it covers the successful space launch at the end of it.
"I was fortunate I had my kids and grandkids on the island. And so you realise there are other very important things.
"It was a horrible, horrible time. But from our point of view our brand is now stronger than it was in 2019."
Branson has made little secret of his opposition to Brexit. He has called it a "multi-generational disaster" in the past. He refrains, however, from saying the UK's current cost of living crisis - with soaring inflation outstripping countries on the continent - is an 'I told you so' moment.
"I've made my position clear that I believe that the UK will suffer for not being part of Europe," he says.
"I still believe that to be the case, we'll just let history decide whether that is the case or not."
At an event in downtown Austin a day after our interview, he cannot stop himself having a pop at ministers over the impending industrial action on Britain's railways.
After being at the vanguard of privatisation, Virgin ran its last rail service in December 2019 after its bid to run the west coast line was deemed to have breached tendering rules.
"We transformed the British rail network, the staff had loved working for Virgin," he says, shortly after kissing the shoe of a British journalist whose bag Virgin Atlantic had lost on the inaugural flight. "I notice the staff are on the verge of having a strike. That wouldn't have happened when Virgin was running it."
These days, Branson is arguably most outspoken about the Russian war against Ukraine.
Earlier this month he criticised Emmanuel Macron, the French president, over his calls to avoid "humiliating" Russia. Branson hit back on Twitter, describing the remarks as "insensitive and wrong".
"I was critical of the word he used," he says. "I was definitely surprised that he used that word because, you know, I think when you're in such a war situation, everything's got to be very clear."
If you go back to the Second World War, if he'd been living in London, as de Gaulle, it was black and white - he wanted the Germans out of France. And I think it should be black and white until the Ukrainians decide differently.
"What Putin has brought upon the world is unforgivable."It's not just Ukraine, that's at risk. It's Poland, there's so many potential countries that could be at risk if we don't stand firm."
Branson says he is in regular contact with Volodymyr Zelensky, the president of Ukraine.
He had hoped that "The Elders", a non-governmental organisation founded by Nelson Mandela and funded by Branson, could have prevented hostilities breaking out in the first place.
"I spoke with him [Zelensky] before the invasion on a couple of occasions because we have an organisation called The Elders that attempts to stop conflicts.
"And I was just trying to see if there was anything we could do to try to help sort of bridge the gap between Ukraine and Russia.
"I spoke with him the day after the invasion. He contacted us about whether we would consider - I think at that stage he did not believe that Putin was going to go as far as he was - he wanted to know if we could throw a concert in the Donbas region. And we are now looking at doing something in Poland.
"Ukraine aside, Branson is evidently in a better place and determined to put a difficult couple of years behind him.
"It's one of the most satisfying moments of my life, having the team [at Virgin Atlantic] confound everybody," he says.That Virgin Atlantic is even still flying is something to be proud of, he suggests. Well-known brands such as Pan-Am, Trans World Airlines and British Caledonian have fallen by the wayside since the first flight took off from Gatwick all those years ago.
"If I go back 38 years to the inaugural flight of Virgin Atlantic and I just remember sitting there looking around the cabin, with my wife and my daughter, Holly, sitting on my lap. And thinking: 'Can this airline in 20 or 30 years time be as special as it is today?'
"Every flight is just about as good as it was on that very first flight."
"Yes, Virgin Atlantic and myself, we all got attacked. But we've all come out really, really strong."
"I think we proved any critics wrong," he says, fixing his gaze again. Then he smiles.