| Business | Phone |
| Burlington Safety Lab 4466 Florida Blvd, Baton Rouge 70806 | (225) 927-6413 |
| Citywide Testing & Inspctn Inc 12135 Industriplex Blvd, Baton Rouge 70809 | (225) 756-5901 |
| Delta Testing & Inspection Inc 1855 W Mason Ave, Baton Rouge 70805 | (225) 356-4355 |
| Dionex Corp Baton Rouge 70817 | (225) 753-8253 |
| Emsl Analytical Inc 11931 Industriplex Blvd 100, Baton Rouge 70809 | (225) 755-1920 |
| J M Test Systems Inc 7323 Tom Dr, Baton Rouge 70806 | (225) 927-2737 |
| Welding Testing Lab 4350 Scenic Hwy, Baton Rouge 70805 | (225) 357-4014 |
| Quality Testing Inc 1832 Wooddale Blvd, Baton Rouge 70806 | (225) 927-3244 |
| S E Dental Research 6125 Hollyfield Dr, Baton Rouge 70809 | (225) 751-8447 |
| Saam's Water Laboratory 6031 Fieldstone Dr, Baton Rouge 70809 | (225) 751-7374 |
| Watson Engineering 6211 Hollyfield Dr, Baton Rouge 70809 | (225) 755-1020 |
| Louisiana Testing & Inspection 6711 Bicentennial Pl, Baton Rouge 70805 | (225) 357-4000 |
| Severn Trent Labs 6113 Benefit Dr, Baton Rouge 70809 | (225) 755-8200 |