Intellitech Corporation
- Intellitech Corporation develops Intellectual Property for efficient configuration, debug and test of electronic products.
- http://www.intellitech.com

Introduction to Design for Testability
- Department of Computer Engineering, Tallinn Technical University
- http://www.pld.ttu.ee/diagnostika/introduction.html

VLSI Testing and Design for Testability
- Computer Engineering Research Center for VLSI Testing and Design for Testability at The University of Texas, Austin
- http://www.cerc.utexas.edu/~jaa/testing/testing.html

Ridgetop Group Inc.
- Develops InstaCell, a semiconductor-based prognostic cell monitor that predicts end-of-life failure of electronic circuits and improves system reliability.
- http://www.ridgetop-group.com/

LogicVision
- provides proprietary technologies for embedded tests.
- http://www.logicvision.com/