It is with deep sadness that we remember Brian Ellwanger of Spearfish, a beloved husband, father, entrepreneur, and co-founder of the Four Sail Team at eXp Realty, whose sudden passing on April 15, 2026 has left family, friends, colleagues, and clients heartbroken.
Brian was widely respected not only for his professional success, but for the relationships he built throughout his life and career. As CEO and co-founder of the Four Sail Team, he helped guide and grow a business that reflected his drive, leadership, and passion for real estate. He was known for his dedication, vision, and ability to inspire those around him.
To his family, Brian was deeply cherished—an extraordinary husband and best friend of 30 years, and a loving father to his daughter, Maddy Ellwanger. His presence was the foundation of their lives, and his absence leaves an immeasurable void that words cannot fully capture.
Friends, colleagues, and clients remember Brian as someone who brought energy, optimism, and authenticity into every interaction. Whether in business or in life, he built connections that were meaningful and lasting. His influence extended far beyond his professional achievements, touching the lives of many who had the privilege of knowing him.
His family has shared that a celebration of life will be held in Spearfish in late May or early June, with the intention of honoring Brian in a way that reflects his personality, wishes, and legacy—a gathering focused on remembrance, love, and celebration rather than mourning.
As loved ones grieve this profound loss, they also reflect on a life well lived and a man who meant so much to so many.
Brian Ellwanger will be forever loved, deeply missed, and always remembered for the legacy he leaves behind.