MADISON, SD

About

GSN Insurance was founded by Scott and Nancy Gusso after a pivotal moment in November 2008, when Scott was informed that his employer of 15 years would be closing all its South Dakota agencies. Determined to continue serving clients and build something of their own, Scott and Nancy took immediate action, and GSN Insurance officially opened its doors in January 2009. Starting from zero premium volume, the agency experienced remarkable growth, reaching $2,500,000 in annualized premium in just two years.

GSN Insurance has historically served eastern South Dakota and southwestern Minnesota with a full range of personal and commercial lines coverage. The agency specializes in small- to medium-sized commercial accounts, agricultural businesses, crop/hail insurance, and a variety of personal lines products. In 2024, GSN Insurance was voted by the public as the #1 agency in Lake County, reflecting the trust and loyalty of its clients.

The team at GSN Insurance is small but highly dedicated. Scott focuses on sales, while Nancy brings extensive experience in underwriting, management, and accounting, holding professional designations including CPCU, AU, and CIC. Together with client manager, Alli and account manager, Leigh Ann, the staff wears many hats to meet the diverse needs of their clients. The team also values a fun, supportive work environment, with regular gatherings like “Wings on Wednesday” to strengthen camaraderie.

GSN Insurance’s success reflects both deep industry knowledge and strong community ties. With decades of combined experience, Scott and Nancy have built a multi-line agency that blends professional expertise with a personal, client-first approach. GSN joined INSight Partners at the end of April 2025 and continue to offer clients the resources of a larger network while maintaining the attentive, hometown service that has defined the agency for more than a decade.