Euclid Insurance Services, Inc. (d/b/a Euclid Program Managers), headquartered in Itasca, Illinois, was founded in 1952 as a retail insurance agency and evolved under second-generation leadership into a platform for launching and backing managing general agencies (MGAs). The firm provides capital, infrastructure, technology, and back-office support to specialized underwriting partners, including 'Euclid Managers,' an employee benefits general agency (GA), alongside partner MGAs in D&O, cyber, surety, and other specialty lines.