Brantley worked for more than 30 years at Atlanta based Hardin Construction Company where he started as Controller and became Chairman and co-owner before selling the company and retiring in 2014. He currently serves as a Board member for several companies in the design and construction industries in the Southeast. He is also a long-term board member of Young Harris College.
Brantley has an Associate of Education degree from Young Harris College and graduated with a Bachelor of Business Administration degree from the Terry College of Business at the University of Georgia with a major in accounting. Brantley and his wife, Sharon, reside in Atlanta, GA and enjoy spending time with their four grandchildren and at their lake house.