Southern Insurance Underwriters (SIU) was established in 1964 as a Georgia corporation. Since that time SIU has grown to become one of the largest family owned MGAs in the country. SIU has a broad range of property, casualty, and transportation products and specializes in hard to place, specialty and excess & surplus lines risks. With an experienced staff of seasoned underwriters, the scope of risks that can be underwritten ranges from the most simple property risks to highly sophisticated self-insured programs.