Since Russia's invasion, Bill Browder has gotten calls from the US and Britain.
The financier was talking on the "One Decision" show.
There is more interest in Russia because of Putin's actions.
The financier, who has been one of the most vocal critics of Putin, said he now gets regular calls from US and British government ministers and officials.
He told the "One Decision" that before Putin's invasion, he was not able to arrange a meeting with UK politicians, but now the doors are open and people want to talk to him.
"I'm getting calls from cabinet ministers, asking for advice, and not just the British government," he said.
There's certainly a lot more interest because everyone can watch on their television as innocent people are being destroyed and children killed.
A big part of Putin's criminal activity is stealing money and a lot of it ends up in our economies in the west.
Hermitage Capital Management was one of the best-performing funds in the world. He spent the past two decades in the crosshairs of the Russian president for his efforts to expose corruption in post-Soviet Russia and created a long list of enemies.
In July of last year, at a joint press conference with Donald Trump, Putin named William Browder, who was banned from entering the country in 2005, as a national security threat.
According to the Atlantic Council, the Russian president claimed that his business associates had never paid taxes in either Russia or the US.
Sergei Magnitsky died in a Russian jail in 2009, and his death was shrouded in mystery.
In the episode, he said he was added to the list of Red Notices eight times because he was wanted for prosecution or to serve a jail sentence.
There needs to be a new Interpol set up with just rule-of-law countries, according to him.
Putin wants him dead for a long time. He didn't want to kill me by putting novichok on my door, but he did want to. The main way he wanted to kill me was to get me back to Russia and then kill me in a Russian prison.
He said that his goal was to get that. He was able to do that by issuing arrest warrants for other countries.
Business Insider has an article on it.