Williamson County Government--economic Development Council 389a Nichol Mill Ln Franklin, TN 37067 Phone : (615) 261-2880 Business Category Government Offices-County Associations Fraternal Organizations Business Consulting Services Administration Of General Economic Programs Government Offices & Public Schools Williamson Economic Dev Direct 389a Nichol Mill Ln # 101 Franklin, TN 37067 Phone : (615) 261-2880 Business Category Government Offices-County Administration Of General Economic Programs Government Offices & Public Schools