The Tunnel to Towers Foundation is a nonprofit organization established in 2001 to honor the memory of firefighter Stephen Siller, who lost his life during the September 11 attacks. The foundation provides support to first responders, military veterans, and their families by offering financial assistance, mortgage-free homes, and other resources. In addition to helping those in need, the foundation also promotes awareness of the sacrifices made by first responders and military personnel. Through various programs and initiatives, such as the Smart Home Program, the Tunnel to Towers Foundation aims to improve the quality of life for those who have served their communities and country.