Elon Musk, Jeff Bezos, and Mark Zuckerberg are set to be present at Trump's inauguration.

Donald Trump, left, and Elon Musk speaks (Brandon Bell / Getty Images file)

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Elon Musk has emerged as a key advisor to President-elect Donald Trump and is among the tech leaders expected to be present at the inauguration.

According to a source involved in organizing the event, Elon Musk, Jeff Bezos, and Mark Zuckerberg are set to be present at the inauguration of President-elect Donald Trump on Monday.

They will occupy a prominent position during the ceremony, sitting alongside other distinguished guests such as Trump’s Cabinet nominees and elected officials on the platform.

The three tech titans have all made attempts to earn favor with Trump in the past year, led by Musk donating more than a quarter-billion dollars in campaign funds to help elect Trump. The CEO of Tesla and SpaceX — and the co-lead of a new Trump administration advisory body called DOGE — Musk has frequently been at Trump’s side since endorsing him for president in July.

Zuckerberg, CEO of Meta, this month reshuffled his lobbying staff and his content moderation policies to align with the incoming Republican administration. Meta also gave $1 million to the Trump inaugural fund.

Bezos, the founder of Amazon and the company’s executive chair, decided last fall that The Washington Post, which he owns, would not endorse in the presidential race, overruling opinion staff who wanted to endorse Vice President Kamala Harris. Amazon also contributed $1 million to Trump’s inaugural fund.

The three men are among the wealthiest people in the world with fortunes based on the tech boom of the past two decades. Musk ranks No. 1, Bezos No. 2 and Zuckerberg No. 3, according to the Bloomberg Billionaires Index.

NBC News has contacted representatives for Musk, Bezos, and Zuckerberg regarding their participation. A spokesperson from Meta chose not to provide any comments, while the others have yet to respond to the inquiries.

According to federal records, all three individuals have provided support to both Democratic and Republican parties throughout the years.

Musk, Zuckerberg, and Bezos often find themselves in competition within the technology sector, vying for dominance on issues like artificial intelligence, space travel, and media influence.

Bezos is trying to compete with Musk’s dominance in rocket launches with his space company Blue Origin, though on Monday Blue Origin called off its inaugural launch attempt.

Zuckerberg and Musk are longtime rivals in AI research and are each pouring billions of dollars into new AI models. In 2022, Musk also started competing with Zuckerberg on social media when he bought X, which was then Twitter.

Bezos and Zuckerberg compete through the dueling advertising and shopping businesses of Amazon and Meta.