About Us The I. S. I. COMPANIES I. S. I. Consulting - Our Comprehensive Financial Services creates a Comprehensive - Holistic approach to helping clients in matters of Investment and Advisory services*, estate planning, charitable giving, business insurance, retirement planning, employee benefits, specific product and plan design tailored to your needs.Where our Mission is: To help our clients become properly protected, debt free and financially independent. We follow the philosophies of Dave Ramsey and the Good Sense Ministries for many of our clients needs.Insurance Services, Incorporated -- "where Service is our middle name." Life, Health, Group and Annuity Sales to the General Public. I. S. I. Marketing - Consulting services to Insurance Firms throughout the Midwest.