WASHINGTON - The estimated $40 million military parade that President Donald Trump wanted in downtown Washington, D.C., Saturday is over but not the controversy concerning what his critics say are conflicts of interest.

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.