The company is the broadcasting rights holder for the Olympic Games in the United States for Tokyo 2020. 

According to CNBC, the company claimed had enjoyed "double digit" growth from the same stage in the build-up to Rio 2016. 

A total of $1.2 billion (£910 million/€1.1 million) was reportedly achieved in national advertising sales for Rio 2016 by NBCU, with the company expected to surpass the figure for Tokyo 2020.

Rio 2016 generated a record level of ad sales for an Olympics, by a figure of 20 per cent.

The $1.2 billion figure at Rio 2016 equated to $250 million (£189 million/€224 million) in profit.

More than half of NBCU’s advertisers for the Games in the Japanese capital are claimed to be new to the Summer Olympics.

The Tokyo time zone is considered more favourable for NBC, as morning events will air live in United States prime time.

"There’s less and less big places where people gather," said Mark Marshall, NBCU President of advertising sales and partnerships, according to CNBC.

"Sports is one of those places where people absolutely do gather.

"Sports continue to bring large audiences together."

Dan Lovinger, Executive President for advertising sales at NBC Sports, claimed earlier this year that they had received strong interest from Japanese companies that had not previously advertised in the United States.

As well as Tokyo 2020, NBCU is the broadcasting rights holder for the Olympics between 2021 and 2032.

It followed an agreement struck between the broadcaster and the International Olympic Committee (IOC) in 2014, with the rights being sold for $7.65 billion (£5.8 billion/€6.7 billion).

The agreement included broadcast rights across all media platforms, including free-to-air television, subscription television, Internet and mobile.