Brown Buchanan is Mississippi Counsel for CSX Transportation, Inc., General Counsel for Mississippi Export Railroad and Counsel the Housing Authority of the City of Biloxi and the City of D'Iberville.
| Atlas Copco Compressors, Inc. | Mississippi Export Railroad Company |
| Atlas Copco North America, Inc. | Mississippi Power Company |
| Air Liquide America L.P. | Mississippi Tort Claims Board |
| American Precision Ind., Inc. | National Railroad Passenger Association (Amtrak) |
| API Heat Transfer Inc. | Oakfabco, Inc. |
| Bowto, Inc. - Delaware | RSC Equipment Rental |
| Canal Insurance Company | Rice Insurance Services Company, LLC |
| Chevron U.S.A. Inc. | St. Paul Travelers |
| Chicago Pneumatic Tool Company | Successor to Big Three Industries, Inc |
| City of D'Iberville | Survivair, a Division of Bacou-Dalloz USA Safety, Inc. |
| Cleaver-Brooks, Inc. | Survivair, a Division of U.S.D. Corporation |
| CSX Transportation, Inc. | The Housing Authority of the City of Biloxi |
| Danaher Corporation | The Manitowoc Company, Inc. |
| Gilbarco, Inc. | Veeder-Root Company |
| Glendale Protective Technologies, Inc. | Walgreen Company |
| Medical Assurance | |