It was created 119,000 jobs in April, while the market expected 177,000 additional jobs.
The March figure was revised to 201,000 instead of 209,000.
After the announcement of these figures, equity markets have increased their losses in Europe, the dollar has reduced its gains against the yen.
The ADP Employer Services survey, conducted in partnership with Macroeconomic Advisers LLC, is considered a leading indicator of monthly statistics on employment figures which are expected on Friday.
Economists polled by Reuters expect 170,000 jobs created in the private and the public but non-agricultural sector in April after 120,000 net new jobs announced in March.