Gannon Sims is a Founding Director of Fresh Expressions NA and the author of Bringing Church Home. He and his wife Carey along with a team of mostly college students and young adults planted The Center Community, a network of house churches in Fredericksburg, Virginia. In 2022, he was called to serve as pastor of Cliff Temple Baptist Church, an historic urban congregation with a vibrant ministry and network of house churches in the Oak Cliff neighborhood of Dallas, Texas.

He earned the Bachelor of Arts Degree from Baylor University and the Master of Divinity degree from Duke University. Prior to entering seminary, Gannon worked as a legislative aide in the U.S. Senate and as a public affairs officer in the anti-human trafficking office at the U.S. State Department. He has served in various roles at several churches, Baptist, Presbyterian, and Anglican.