US aviation giant Boeing has told BBC News it is donating $1 million (£812,600) to President-elect Donald Trump's inaugural fund.
Google also confirmed it had made a similar donation as the two companies joined a growing list of major American companies contributing to the fund.
The list also includes oil producer Chevron and tech giants Meta, Amazon and Uber.
Trump's inauguration, marking the start of his second term in the White House, is set to take place on January 20.
“We are pleased to continue Boeing's bipartisan tradition of supporting the US President's Inaugural Committee,” Boeing said.
The agency added that it has made similar donations to each of the last three presidential inaugurations.
Boeing is working to recover from a safety and quality control crisis as well as deal with damage caused by last year's strike.
The company is also building the next presidential plane, known as Air Force One. The two jets are expected to enter service early next year.
In his first term as president, Trump forced the plane maker to renegotiate its contract, calling the initial deal too expensive.
Google has become the latest major tech company to donate to the fund, following similar announcements by Meta and Amazon. It also said it will stream the event around the world.
“Google is pleased to support the launch of 2025, with a livestream on YouTube and a direct link on our homepage,” said Karan Bhatia, Global Head of Government Affairs and Public Policy at Google.
Car companies Ford, General Motors and Toyota also donated $1 million to the inaugural committee.
In the energy industry, Chevron confirmed it has contributed to the fund but declined to say how much.
“Chevron has a long tradition of celebrating democracy by supporting bipartisan inaugural committees. We're proud to do so again this year,” said Bill Turin, Chevron's manager of global media relations.