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Contamination Control

Trust TSI Particle Counters—We detect it all

TSI provides specialized particle counters for classifying and monitoring cleanrooms in a variety of applications. Core industries include pharmaceutical, semiconductor, electronics, and industrial manufacturing.

Drawing from over 40 years’ experience, TSI particle counting technology is used by national and standards labs worldwide. Rely on our experience to confidently ensure regulatory compliance and improve quality.

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News & Press

Read the latest news about TSI and industries we serve.

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We are at the industry events important to you.

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We encourage curiosity and critical thinking. Browse TSI jobs.

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Patents & Awards

TSI researchers and engineers hold more than 50 patents.

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