You cannot log in without being assigned a valid TSI role.
TSI Incorporated was recognized as one of the winnin...
TSI Incorporated is excited to announce the addition...
Highlighting the importance of air particle testing ...
TSI is proud to present a free 1-hour webinar intend...
CANCELLED: Participants will learn basic aerosol mea...
Visit us at our virtual booth during EAC 2020 and fi...
Operating at a global and human scale
TSI imagines, designs, and develops products that solve measurement problems. We collaborate with colleges and universities, research groups, and businesses around the world to set the standard for measurement expertise.
At TSI, our global team strives to provide not only instruments, but also innovative solutions. We operate at both a global scale and a human scale—instruments that measure everything from atmospheric aerosols to the fit of a personal respirator. Turning data into actionable information enables our customers to do their jobs more efficiently. TSI understands the science, the data, and the processes that support your work.
TSI, headquartered in Minnesota, has a global network with sales, service, and support locations in the UK, Singapore, China, India, and Germany. Wherever you are, we are there to support you.
Since 1961, we’ve set the standards for precision instrumentation and software solutions. Every day, our dedicated employees turn research into reality
Innovations for Generations
Since 1961, TSI has been pushing the boundaries of engineering and discovery.
Read our Privacy, Quality, Terms & Conditions, and other TSI policies
Continually improving our processes, products, and services.
See QMS Certificates
TSI's history goes all the way back to 1961 and as far away as Mars!
Register or login to request service or calibration for your TSI instrument
Register or Login
Manufacturing Marvels features TSI Incorporated
In this episode, Manufacturing Marvels feature TSI, showing the work we do innovating and building precision instrumentation solutions for every kind of industry.
Watch YouTube video
Read the latest news about TSI and industries we serve.
View All News
We are at the industry events important to you.
View all Events
We encourage curiosity and critical thinking. Browse TSI jobs.
Explore TSI Careers
TSI researchers and engineers hold more than 50 patents.
Browse TSI's Patents