Elon Musk. REUTERS/Danny Moloshok Elon Musk and Travis Kalanick, the chief executives of Tesla and Uber, are joining US President-elect Donald Trump's new economic advisory board.

The two tech-transportation executives have been named as members of Trump's Strategic and Policy Forum, it was announced on Wednesday, alongside PepsiCo chairman and CEO Indra Nooyi.

Launched in early December, the forum will provide economic advice and will "be called upon to meet with the president frequently to share their specific experience and knowledge as the president implements his plan to bring back jobs and Make America Great Again," the initial announcement said.

It is being headed up by the CEO of Blackstone, Steve Schwarzman.

The American technology industry was overwhelmingly opposed to Trump before the election, with particular concerns around his anti-immigration rhetoric — Silicon Valley is heavily reliant on immigrant workers. But following Trump's shock election victory, the industry is tentatively exploring how it can work with Trump.

Top-tier tech executives were scheduled to meet with the president-elect at Trump Tower in New York on Wednesday, with attendees including Apple CEO Tim Cook, Microsoft CEO Satya Nadella, Larry Page and Eric Schmidt of Google's parent company, Alphabet, Amazon boss Jeff Bezos, and Facebook COO Sheryl Sandberg.

During the election, Musk, who in addition to the electric-car company Tesla is CEO of the aerospace firm SpaceX, supported Hillary Clinton and was critical of Trump, saying, "I think a bit strongly that [he] is probably not the right guy" to be president. Kalanick, the CEO of the ride-hailing company Uber, has also joked about the Republican president-elect, saying in 2015: "Oh my god, Donald Trump's gonna win. I'm going to move to China if Donald Trump wins."

Musk, Kalanick, and PepsiCo's Nooyi will be joining General Motors CEO Mary Barra, JPMorgan CEO Jamie Dimon, Disney CEO Bob Iger, Walmart CEO Doug McMillon, General Electric CEO Jack Welch, and others on the team.

Travis Kalanick. REUTERS/Adnan Abidi

Here's the previous list of members, not including the newest three: