| Jennings Norwood Irrigation | Jennings | LA |
| J. & E. Weil | Rayne | LA |
| Jewell Seam | New Orleans | LA |
| Jewish Community Center | New Orleans | LA |
| J Graves Insulation | Shreveport | LA |
| J. Henry Putnam Rose Hill Plantation | Abbeville | LA |
| Jimmie Walker Contracting | Pineville | LA |
| J.J. Jackson | New Orleans | LA |
| J.M. Brown General Contractor | Shreveport | LA |
| J.N. Pharr & Sons | Berwick | LA |
| Joan Of Arc Canning | Hessmer | LA |
| Jo Ellen Smith Hospital | New Orleans | LA |
| John A. Morris Ashton Plantation | New Orleans | LA |
| John A Quitman | New Orleans | LA |
| John Ehret High School | Marrero | LA |
| John Hill | Port Allen | LA |
| John Mcdonogh | New Orleans | LA |
| John Sharp Williams | New Orleans | LA |
| Johns Manville | Marrero | LA |
| Johns Manville | New Orleans | LA |
| John Stagg | New Orleans | LA |
| John Vining | New Orleans | LA |
| Jonathan Grout | New Orleans | LA |
| Jonathan Sturges | New Orleans | LA |
| Jonathan Trumbull | New Orleans | LA |
| Joseph Goldberger | New Orleans | LA |
| Joseph N Nicollet | New Orleans | LA |
| Joseph Pettijean | Thornwell | LA |
| Joseph Pettijean | Welsh | LA |
| Joshua Seney | New Orleans | LA |
| Josiah Parker | New Orleans | LA |
| J P Oil | Melville | LA |
| J P Oil | Lafayette | LA |
| J P Oil | Krotz Springs | LA |
| J.S. Otis Mahogany | New Orleans | LA |
| J. Supples Sons Planting | Bayou Goula | LA |
| J. Tom Harrison | Shreveport | LA |
| JTT Warehouse | Baton Rouge | LA |
| Judah Touro | New Orleans | LA |
| Judge Emile Rost | New Orleans | LA |
| Julian Poydras | New Orleans | LA |
| Julien Poydras | New Orleans | LA |
| Jung Hotel | New Orleans | LA |
| Jupiter | New Orleans | LA |
| J.W. Barnett | Centerville | LA |
| Kaiser Aluminum & Chemical | Baton Rouge | LA |
| Kaiser Aluminum & Chemical | Gramercy | LA |
| Kaiser Aluminum & Chemical | Norco | LA |
| Kaiser Aluminum & Chemical | Chalmette | LA |
| Kaiser Aluminum & Chemical | New Orleans | LA |
