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Reference.org
ADP (company)
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<p>Automatic Data Processing, Inc. (ADP) is an American provider of <a href="/facts/Human_resources/vSYnWaKX">human resources</a> management software and services, headquartered in <a href="/facts/Roseland%2c_New_Jersey/PMFw3rQF">Roseland, New Jersey</a>. </p>