Our Company History

 O'Brien Environmental Services (O.E.S.) was established in 2000 in Austin, Texas.  Prior to 2000, Randy O'Brien (owner and lead auditor) was the audit coordinator for the Environmental Resource Center and with AuditSource as a partner/manager, auditor, technical writer, and researcher. He managed the Desktop (informational audits) Program for AuditSource until leaving in 1999 to open O'Brien Environmental Services (O.E.S).