PSSI is North America’s leading provider of food safety solutions offering a unified, total protection approach comprised of contract sanitation services, chemical innovations, pest prevention and intervention solutions for food processing facilities, supporting more than 725 partner plants every day. Our team of more than 16,500 skilled food sanitors, microbiologists, technical experts, engineers and safety specialists are committed to protecting people and brands by keeping USDA, FDA and CFIA processing facilities clean, safe and audit-ready. The PSSI team works hand-in-hand with every partner to develop customized, comprehensive programs for smarter and more efficient employee and food safety.


We ensure a safer food supply while helping team members and partners achieve their goals. 

A Moment Perfected

You work hard to create moments of enjoyment.

Watch and learn how PSSI protects those moments you perfect.

Making Success Sustainable

Sustainability is at the forefront of everything we do. We drive success for our customers by providing them with effective, science-based solutions that maximize efficiency and minimize environmental impact. From water and energy conservation programs to food waste reduction, we’re committed to getting the most out of our resources by using as little as possible.


Our work may be behind the scenes, but it’s a vital part of our customers’ operations. It also plays an important role in overall consumer health. That’s why we put an emphasis on education. From trade shows to extensive universal training, we make sure everyone is equipped with the knowledge needed to succeed. After all, the better informed, the better protected.


What started as a small company in a nonexistent market has blossomed into a high-performing organization larger than all of our competitors combined. Yet through all the change, our entrepreneurial culture and commitment to serving our customers has always remained the same.
  1. 1970

    PSSI is founded in Mt. Pleasant, Iowa, by Tom Turner and John Wright. His first plant in Joslin, Illinois, is still one of our customers today.

  2. 1977

    PSSI merges with Chemidyne Corporation after Tom’s close friend, Warren Dusenbury, sees potential in the business and buys him out. Warren also brought Royal Chemical under the Chemidyne Corporation umbrella, and ran all three companies successfully until 1988.

  3. 1983

    The competitive advantage of combining PSSI’s services and Chemidyne’s chemical products was yielding strong results, cleaning 25 plants with over 1,000 employees.

  4. 1989

    PSSI is sold and is purchased by Dan Zelman and three other investors. Dan becomes CFO of PSSI, beginning a period of immense growth over the next decade, including the addition of accounts like Cargill, Hormel and American Food Group.

  5. 1997

    Current PSSI President Jeff Kaiser leaves PSSI to found Kaiser Contract Cleaning Specialists in Mt. Pleasant, Iowa. Both companies experience growth while competing against each other.

  6. 2007

    Blue Point Capital purchases PSSI.

  7. 2010

    Kaiser Contract Cleaning Specialists merges with PSSI, marking Jeff Kaiser’s return to the company, and the beginning of an active sales effort to grow non-protein business.

  8. 2012

    PSSI acquires Superior Contract Cleaners, adding $26 million in revenue. PSSI’s VAL Services business is also launched.

  9. 2013

    PSSI acquires DCS Sanitation Management, adding $58 million in revenue.

  10. 2014

    PSSI acquires CSL, Startkleen and Mossberg Sanitation, adding a combined $75 million in revenue. The same year, Leonard Green & Partners acquires PSSI.

  11. 2016

    PSSI acquires Packers Chemical, adding $25 million in revenue.

  12. 2017

    PSSI acquires sanitation provider S3, adding $17 million in revenue.

  13. 2018

    Blackstone purchases PSSI and becomes a partner.

  14. 2019

    PSSI acquires Cal-Clean

  15. 2020

    PSSI acquires ICS

    PSSI acquires first Pest solutions company – ICON Ecological Solutions

  16. 2021

    PSSI acquires Safe Foods

    PSSI acquires Strategic Industries, LLC

“Every day brings new challenges and opportunities to enhance our business. It excites me to be a part of such a dynamic team of individuals whose ideas are not only heard, but made a reality. We get to play a leading role in that.”
Amanda Vaassen – PSSI Vice President Human Resources


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