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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.
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.
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.
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.
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.
Blue Point Capital purchases PSSI.
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.
PSSI acquires Superior Contract Cleaners, adding $26 million in revenue. PSSI’s VAL Services business is also launched.
PSSI acquires DCS Sanitation Management, adding $58 million in revenue.
PSSI acquires CSL, Startkleen and Mossberg Sanitation, adding a combined $75 million in revenue. The same year, Leonard Green & Partners acquires PSSI.
PSSI acquires Packers Chemical, adding $25 million in revenue.
PSSI acquires sanitation provider S3, adding $17 million in revenue.
Blackstone purchases PSSI and becomes a partner.
PSSI acquires Cal-Clean
PSSI acquires ICS
PSSI acquires first Pest solutions company – ICON Ecological Solutions
PSSI acquires Safe Foods
PSSI acquires Strategic Industries, LLC