Meet Jonathan

Jonathan Klett concentrates his practice on commercial litigation. He represents a wide range of clients, including multinational businesses, financial institutions, investors, developers, owners and general contractors. Jonathan has experience with contract disputes, products liability, financial services litigation, construction disputes, business tort litigation, insurance coverage issues, environmental issues, trade secret concerns and other complex litigation. He also has experience in appeals at the South Carolina Court of Appeals, the South Carolina Supreme Court and the Fourth Circuit Court of Appeals.

In addition to his litigation practice, Jonathan regularly assists businesses with general advice and counsel, including drafting, negotiating and reviewing contracts. Jonathan also serves as outside and local counsel to out-of-state businesses and firms.

Prior to joining Haynsworth Sinkler Boyd, Jonathan served as a law clerk for the Honorable Henry M. Herlong, Jr., United States District Judge for the District of South Carolina.  While in law school, Jonathan interned for the Honorable David C. Norton, United States District Judge for the District of South Carolina.

• Tulane University Law School, J.D., cum laude, 2017
• Clemson University, B.S., 2014

• South Carolina, 2017
• U.S. Court of Appeals, Fourth Circuit, 2018
• U.S. District Court, South Carolina, 2018

• Best Lawyers: Ones to Watch Commercial Litigation (2021-2022, 2024-2025), 
  Litigation – Construction (2022-2025) and Product Liability Litigation – Defendants (2022-2025)
• South Carolina Super Lawyers® “Rising Stars” Business Litigation (2024-2025)
• Greenville Business Magazine “Legal Elite of the Upstate” Insurance (2023)
• Greenville Business Magazine “Best & Brightest 35 and Under” (2021)
• Louisiana State Bar Association Corporate and Business Law Award
• Pro Bono Krewe Award
• C.J. Morrow Scholars Award
• Tulane International and Comparative Law Journal, Managing Digital Editor

• South Carolina Defense Trial Attorneys’ Association
• South Carolina Bar
• Greenville County Bar Association
• Opportunity Greenville, Graduate
• American Red Cross, Upstate SC Chapter Board of Directors (2019-Present)

• “The United States Supreme Court Sidesteps Partisan Gerrymandering, But Leaves the Door Open for Future Resolution,” HSB Blog, March 10, 2022
• “National Interest vs. Foreign Investment - Protecting Parties Through ISDS,” Tulane Journal of International & Comparative Law, Vol. 25, No. 1, 2016