QuEST Global was ranked the number 1 engineering service outsourcing vendor by the Black Book of Outsourcing in 2009. The company received high marks for operational excellence, design, mechanical, manufacturing engineering, and plant automation/enterprise asset management services. Customer feedback praised QuEST Global for its trustworthiness, breadth of offerings, delivery excellence, customization, reliability, and support. The CEO of QuEST Global said the ranking reflects the company's focus on engineering services and commitment to serving customers at the highest level of performance.