ABOUT CLARKSON SPECIALTY LECITHINS. Clarkson Specialty Lecithins (CSL) is a manufacturer of certified organic and non-GMO lecithins serving the food, beverage, and nutrition industries. With facilities in Illinois and Iowa, CSL operates under FSMA-compliant programs and is certified to Safe Quality Food (SQF) standards, meeting Global Food Safety Initiative benchmarks. CSL provides lecithin ingredients to national and global brands and emerging c...