Where are entegris products made? Entegris operates out of its headquarters in Billerica, Massachusetts. The company has about 3,500 employees in manufacturing, service center and research facilities in the United States, Malaysia, Singapore, Taiwan, China, Korea, Japan, Israel, Ireland, Germany and France .How do i contact integris customer service? If you would like to speak with an INTEGRIS representative, please call 405-951-2277 or toll free 888-951-2277 between the hours of 8 a.m. and 5:30 p.m.Why would you want to work at entegris? Entegris provides a work schedule that is accommodating and supportive of work/life balance. Managers and supervisors work hard to ensure that training and promotional opportunities are available for high performing employees. The people that work here make the job very enjoyable and the company benefits are great. Was this review helpful?Can i save changes to my entegris profile? Changes wont be saved until you sign up for an Enhanced Profile subscription. At Entegris, we want you to be part of our culture, which values your unique talents, skills, and experiences. Our employees bring their true selves to work, and are appreciated not only for what they do, but for who they are.