Large US companies and their executives helped President Donald Trump raise a record-setting $US106.7 million ($A142.2 million) for inauguration festivities in January, according to government records released on Wednesday.
That tally more than doubled the prior 2009 record of $US53.2 million ($A70.9 million) for Barack Obama's first inauguration, which had topped the previous 2005 record of $US42.3 million ($A56.4 million) for George W Bush.
The biggest donor by far to Trump's inauguration was Sheldon Adelson, casino magnate and founder of Las Vegas Sands.
He gave $US5 million ($A6.7 million), according to the 58th Presidential Inaugural Committee's filing with the Federal Election Commission.
Many of the companies that donated to Trump, a Republican, have significant matters pending before the US government.
Many of the companies which made donations to the 2017 event also donated to Obama's prior inauguration.
For example, aerospace and defence groups Boeing and Lockheed Martin each donated $US1 million ($A1.3 million) to Trump's inauguration fund, the filing said.
Boeing had donated $US1 million to the 2013 Obama inauguration, according to the OpenSecrets website run by the Centre for Responsive Politics, a campaign finance watchdog.
Trump publicly criticised both Boeing and Lockheed Martin before his inauguration. In Twitter messages he said costs on Boeing's new Air Force One plane were "out of control" and urged the federal government to "Cancel order!"
In December, Trump sent a Twitter message saying the cost of Lockheed Martin's F-35 fighter jet was also "out of control."
Financial services companies and executives were among the million-dollar donors to Trump's big festivities, including Charles Schwab Corporation, Bank of America, financier Henry Kravis and Cantor Fitzgerald Chairman Howard Lutnick.
Their industry is eager for Trump to roll back regulatory reforms put in place after the 2008 financial crisis.
Coal and oil companies were also prominent donors. Clifford Forrest, owner of the Rosebud Mining Co, gave $US1 million.
AT&T gave nearly $US2.1 million ($A2.8 million) in cash and services. It is seeking approval from the Trump administration to acquire Time Warner.