InterSense motion tracking products are industry leading solutions being integrated into the next generation position, navigation and stabilization systems.

Company Overview

We are an innovator in inertial tracking and sensor fusion technology.
Our customers deploy high-performance tracking, navigation, visualization
and stabilization systems with our products.

Thales Visionix, a division of Thales Defense & Security, Inc. (TDSI) located in Billerica, Massachusetts produces the InterSense brand of products for inertial tracking and sensor fusion technology. InterSense products are used worldwide to deploy high performance tracking, navigation, visualization, and stabilization applications that save lives, improve productivity, and conserve resources.


Founded in 1996 by Eric Foxlin, InterSense began as a commercial extension of Mr. Foxlin’s pioneering research at the Massachusetts Institute of Technology (MIT).  The business grew to become a leading supplier of cutting-edge technology that includes an impressive portfolio of patented products. In 2011, InterSense was acquired by the Gentex Corporation, and in 2012, Thales Defense & Security, Inc. acquired both Visionix and InterSense from the Gentex Corporation.


Thales Defense & Security, Inc. is a global company serving the defense, federal, and commercial markets with state-of-the-art solutions for the ground tactical, airborne and avionics, naval/maritime, and security domains.  TDSI is a subsidiary of Thales Group, a global aerospace defense and technology solution provider with over 65,000 employees in 56 countries and global revenues in excess of $19.45B USD in 2017. With over 25,000 engineers and researchers, Thales has a unique capability to design and deploy equipment, systems and services to meet the most complex communications and security requirements.