U.S. private employers added 139,000 jobs in February, shy of economists' expectations, and gains in the previous month were revised lower, a report by a payrolls processor showed on Wednesday.

Economists surveyed by Reuters had forecast the ADP National Employment Report would show a gain of 160,000 jobs.

Private payrolls for January were revised down to a gain of 127,000 from the previously reported 175,000.

The report is jointly developed with Moody's Analytics.