Stanley D. Lindsey and Associates, Ltd. (SDL) is a full-service consulting structural engineering firm with offices in Nashville, Atlanta, and Charlotte. Founded in 1966, the firm has provided the structural design for projects throughout the United States and abroad. With over 55 years of experience in the design, evaluation, and retrofit of structures, SDL has an extensive project portfolio in virtually every type of structure including commercial, healthcare, governmental, education, sports and recreation, residential, resort, retail, parking, industrial, and specialty structures. Currently, our engineers are registered in 46 states, the District of Columbia, Puerto Rico, and the US Virgin Islands and consult with clients throughout the United States and overseas.