Delivering dependable, regular and fast IT services is essential to compete in the market. Experts in IT service management (ITSM) believe that the ITIL Foundation Certification is an important qualification for their careers. Since organizations are using ITIL to enhance their service delivery, there is a growing need for people with ITIL certifications. Getting certified is important, but your real success depends on how you perform in the interview. According to Payscale.com, professionals with ITIL Foundation certification in the United States can expect to earn an average of around $111,000 annually, with top earners potentially reaching up to $190,000.