5 Biggest Pest Control Companies in the World

2. Ecolab Inc. (NYSE:ECL)

Latest Value Estimate: $45.80 billion

Ecolab Inc. (NYSE:ECL) is an American firm headquartered in Saint Paul, Minnesota. It provides pest control services to the commercial sector, which includes healthcare, hotels, restaurants, and grocery stores.

As of 2022’s December quarter, 47 of the 943 hedge funds surveyed by Insider Monkey had bought Ecolab Inc. (NYSE:ECL)’s shares. Out of these, Michael Larson’s Bill & Melinda Gates Foundation Trust is the firm’s largest investor through a $759 million stake that comes via 5.2 million shares.

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