Martin co-founded and served as past director of The Martin Foundation, which contributes to educational and environmental causes and is one of the largest philanthropic foundations in Indiana. He also was one of three co-founders and former board chairman of the Denver-based Samaritan Institute, a non-denominational, not-for-profit provider of counseling and wellness services.
NIBCO is currently headed by Lee Martin's son, Rex Martin, who serves as president, chairman and CEO.