Among the guests at Donald Trump's second inauguration in Washington, D.C. today were three billionaire tech CEOs: Amazon's Jeff Bezos, Tesla's Elon Musk, and Meta's Mark Zuckerberg. They were also joined by Google CEO Sundar Pichai and Apple CEO Tim Cook.

Elon Musk, who is the world's richest person, uses the Apple iPhone 16 Pro. This device is Apple's flagship model.

A photograph captured during the event showed Sundar Pichai and Elon Musk using smartphones. Pichai was seen with what appeared to be Google's latest Pixel 9 series (which makes sense for the Google boss), while Musk held an iPhone 16 Pro — a surprising choice considering Musk's past criticism of Apple.

After years of rejecting the idea of a sale of TikTok’s US assets to an American buyer in order to avert a ban, China and ByteDance may have found an owner they could live with: Elon Musk.

Among the tech CEOs in attendance at Donald Trump's inauguration ceremony inside the Capitol rotunda on Monday, Jan. 20, were Elon Musk, Mark Zuckerberg, Jeff Bezos and Tim Cook

Elon Musk and Sam Altman shared a longstanding feud ever since Musk, who co-founded OpenAI with Altman in 2015, split from the company.

Love him or hate him for his strident political views, the controversial entrepreneur has quickly risen in the annual Brand Guardianship Index that ranks the world's 100 best CEOs.

Chinese officials are reportedly exploring a backup plan for TikTok after the Supreme Court appeared unlikely to save it from a US ban. With TikTok’s legal options nearly exhausted, multiple news outlets are reporting that China is considering an option it previously said it wouldn’t: letting ByteDance sell the app.

President Donald Trump's announcement on Tuesday of a $500 billion investment into artificial intelligence infrastructure was quickly upended by a

Elon Musk tops the list as the highest-paid CEO globally with $23.5 billion, primarily from Tesla's stock options. Tim Cook of Apple and Sundar Pichai

Meteorologist Sam Kuffel was targeted by a conservative media personality for comparing Musk's gesture to a Nazi salute.