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SI Group is a global leader in the innovative technology of performance additives, process solutions, and chemical intermediates. Our solutions are essential to many diverse industries and applications, creating extraordinary results. We drive value by enhancing the quality, performance, and durability of countless items we use every day.

We are on a journey to captivate our customers at every level. Whether that means expanding our capabilities, global reach, or providing new innovations and technologies that create value. Our approach is customized to exceed customer needs and deliver superior performance.

Our customer-centric approach is rooted in understanding the markets we serve and the value that our products provide. Our focus and business strategy are aligned to these markets, offering differentiated solutions that feed into aerospace, health & wellness, tires, plastics, engines & fuels, and others.

We innovate and drive change to create value with a passion for safety, chemistry, sustainability, and extraordinary results.