After winning soccer’s ultimate prize, the World Cup champion US women’s team is being let down by corporate America.

Big business has ponied up a mere $450,000 — well short of the $2 million price tag — to pay for Friday’s ticker-tape parade in Manhattan, officials revealed Wednesday.

Major League Soccer, Nike, Mondelēz foods and Electronic Arts are among the early sponsors for the downtown party, but those companies have been shockingly alone in backing a team that drew the most TV viewers for any soccer game in US history on Sunday.

“If corporations are not falling over themselves to be associated with these champions, then they’re missing out,” said Sonia Ossorio, New York state and city chapter president of the National Organization for Women.

“Everyone is watching, and these women are household names. I don’t know why companies wouldn’t want to be a part of this.”

But with the team winning the World Cup only days ago, city officials said they’re fortunate to have scraped together the amount of money they have now.

“In a very, very short period of time, we were able to pull together the appropriate funds for this to happen,” said Dan Gross, a City Hall events spokesman.

The city is preparing to bite the bullet and cover as much as $1.5 million in deficit.

But even if it costs taxpayers that much money, “that’s not crazy,” said an official in former Mayor Mike Bloomberg’s administration.

“That’s high but not high high by any means.”

Additional reporting by David K. Li