Palantir, the data analysis and technology firm whose contracts with the federal government are expanding, and Coinbase, a cryptocurrency firm that donated to the president’s inauguration, also sponsored the event. Oracle, a database company whose co-founder is a close friend of Mr. Trump’s, received a shout-out on Saturday as a sponsor.

Law enforcement officials reported no arrests from the celebration in D.C. that drew several thousand parade watchers, with some demonstrators protesting against the show of military strength.

The largest military parade in Washington in decades unfolded Saturday alongside hundreds of protests against it, and its chief organizer