Leading the Way in Contamination Monitoring & Cleanroom Solutions Worldwide
Particle Measuring Systems partners with clean manufacturers around the world to help meet regulatory requirements, improve product yield, and maintain process integrity.
With a local presence in every major market, we deliver contamination monitoring solutions for particles and molecules across air, gas, chemicals, and deionized water, along with active air microbial samplers.
As the inventor of laser particle counting, our legacy of innovation is backed by over 60 active patents, making us a trusted leader in cleanroom and process monitoring technologies.
Discover What’s Driving the Future of Particle Measuring Systems
Join Andy Cowan, President of Particle Measuring Systems, as he shares his vision for the company’s future and what sets PMS apart as an exciting place to work and collaborate. From rapid global growth and long-term customer partnerships to bold investments in innovation and infrastructure, get an inside look at how PMS is expanding its reach in Life Sciences and Electronics—while staying true to its core values and empowering its people every step of the way.
Global Expertise, Local Support—Wherever You Are
At Particle Measuring Systems, we don’t just serve global markets—we’re directly present in them. With local sales and service teams in over 50 countries and a direct presence in every major clean manufacturing region, we deliver on-the-ground expertise where and when you need it.
Backed by more than 60 active patents and a team of 700 employees worldwide, we develop the technology that helps you make confident, data-driven decisions, boost process yield, and stay ahead of evolving regulatory demands.
We stay closely connected to industry and technology trends so you can focus on what matters most: product quality and compliance.
Laser Particle Counters: Innovation That Started It All
Particle Measuring Systems is the world’s largest manufacturer of particle counters—and it all began with a breakthrough: we invented laser particle counting technology. This innovation revolutionized contamination monitoring by delivering precise, reliable data for cleanroom environments.
Since 1972, we’ve continued to lead the way. Our commitment to advancing detection technologies drives every product we release and every service we offer—always focused on solving the toughest challenges in critical industries today and preparing you for tomorrow.
A Spectris Company
Particle Measuring Systems is part of Spectris plc, who harnesses the power of precision measurement to equip customers to make the world cleaner, healthier and more productive.
Precision is at the heart of Spectris who provides customers with specialist insight through high-tech instruments and test equipment.
Spectris is committed to maintaining high standards of corporate governance, both at the Board level and throughout the Group. This is fundamental to the effective and responsible management of the business.
Our Mission Statement
We continually push the boundaries of contamination monitoring to enable clean manufacturers’ success by providing invaluable insights through:
- Leading Technology
- Quality Service
- Collaborative Solutions, and
- Unmatched Expertise
All made possible by our global team of dedicated and creative individuals.
Our Values
Be true
We believe in absolute integrity. It’s how we win for stakeholders, the environment and each other.
Own it
We believe in teamwork and keeping our promises. It’s how we build our brands and businesses.
Aim high
We believe in being bold and positive. It’s how we perform at our best and achieve greater success.
