Polleni Competitors

TSI Incorporated serves a global market by investigating, identifying and solving measurement problems. As an industry leader in the design and production of precision measurement instruments, TSI partners with research institutions and customers around the world to set the standard for measurements relating to aerosol science, air flow, indoor air quality, fluid dynamics and biohazard detection. With headquarters based in the U.S. and field offices throughout Europe and Asia, TSI has established a worldwide presence in the markets we serve. Every day, our dedicated employees turn research into reality. Learn more about Careers at TSI.com. https://tsi.com/discover-tsi/careers/

IQAir is a Swiss-based air quality technology company that empowers the world to breathe cleaner air through information, collaboration and technology. With the vision of a world where everyone breathes clean air, IQAir provides individuals, organizations and communities with tools to improve air quality. Since 1963, IQAir pioneers air quality solutions that include air quality data, sensors, monitoring systems, air purification and expert services.

Manufacturer of meteorological and particulate monitoring instruments and systems for ambient air. Leading provider to federal governments, local agencies, private industry, universities, and research centers. All our products are manufactured in Oregon, USA and sold around the world.