About Us

EnSight is made by Computational Engineering International, Inc. (CEI Inc.)

CEI was founded in 1994 as a spin-off from Cray Research, the leader of supercomputing at the time.

CEI was purchased by ANSYS, the leader of engineering simulation, in July 2017.  CEI, Inc. and its international offices in Japan, India, and Germany, are now a wholly-owned subsidiary of ANSYS, Inc.  (customer FAQ)

EnSight development is headquartered in Apex, NC.


ANSYS Raleigh NC Office (CEI HQ)

US Contact Information

Phone: 1-800-551-4448 Support
1-919-363-0883 General
Email: support@ansys.com

2166 N. Salem Street
Suite 101
Apex, NC 27523-6456

US Sales




EnSight Technical Support

Support: 800-551-4448

Support: support@ensight.com

Our office is on Eastern USA Time zone and support hours are 9am – 5pm.