WASHINGTON--(BUSINESS WIRE)--The Association of Clinical Research Organizations (ACRO), which represents the global leaders in clinical outsourcing, today reported that its members have expanded their payroll by 122 percent in the past 10 years and now account for over 72,000 jobs both in the United States and abroad. ACRO attributes this job growth to the 156 percent increase in revenues since the association was founded in 2001, a compound annualized rate of 11 percent. These are two of the key findings from the latest member profile survey.