Welcome to iSi!

iSi Environmental Services is a full-service environmental, health, and safety (EHS) services firm that provides cost-effective solutions and services to the business and government sectors. From consulting to training; from waste management to cleanup, iSi's diversity of services and expertise has made us one of the most successful EHS companies in the Midwest. Founded in 1990, iSi has grown to over 120 employees, providing services throughout the United States.

"In our industry, our services boil down to one simple concept. We are hired to manage the liabilities of our clients. Our employees understand this and are extremely talented in their respective field, which allows iSi to provide very effective solutions."
 —Karma Mason, President