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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| B & B Pumping Solutions | 8 Mile, AL | — | Pumper | — |
| B & C Mobile Homes | Laurel, MS | — | Installer | — |
| B & G Vacuum Services | Poplarville, MS | — | InstallerPumper | — |
| B & L All Pro | Lucedale, MS | — | Pumper | — |
| B & L Construction | Sturgis, MS | — | Installer | — |
| B & W Construction Co. | Lexington, MS | — | Installer | — |
| B & W Septic Systems | Walls, MS | — | Installer | — |
| B Clean, Llc | Laurel, MS | — | InstallerPumper | — |
| B-B Septic | Florence, MS | — | Installer | — |
| B&L All Pro Septic | Lucedale, MS | — | Installer | — |
| B&T Dirtwork | Greenwood Springs, MS | — | Installer | — |
| Babb Septic Tank Service | Carthage, MS | — | InstallerPumper | — |
| Ball Construction | Perkinston, MS | — | Installer | — |
| Banks Plumbing | Greenwood, MS | — | Installer | — |
| Barnes & Son | Silver Creek, MS | — | InstallerPumper | — |
| Barnett Diverse Services, Llc | Jayess, MS | — | Installer | — |
| Barns Services | Shannon, MS | — | Installer | — |
| Barry'S Backhoe Service | Laurel, MS | — | Installer | — |
| Bcc Portable Solutions | Summerdale, AL | — | Pumper | — |
| Bell Environmental Services, Llc | Delta City, MS | — | Installer | — |
| Bennett Plumbing & Pool Inc. | Ripley, MS | — | Pumper | — |
| Bennett Plumbing & Pools, Inc. | Ripley, MS | — | Installer | — |
| Benny Oglesby Construction | Sturgis, MS | — | Installer | — |
| Bht Resources | Loxley, AL | — | Pumper | — |
| Big 8 Plumbing Co. | Carthage, MS | — | Installer | — |
| Big 8, Lp | Carthage, MS | — | Pumper | — |
| Biggons Septic And Land Works, Llc | Columbia, MS | — | Installer | — |
| Bill'S Septic Tank | Shannon, MS | — | Installer | — |
| Bill'S Septic Tank Service | Shannon, MS | — | Pumper | — |
| Birge Brother'S Plumbing Company | Como, MS | — | Installer | — |
| Birge Brothers Plumbing Co. | Como, MS | — | Installer | — |
| Bj'S Service Group Inc. | Picayune, MS | — | Pumper | — |
| Black Sands Construction | Perkinston, MS | — | Installer | — |
| Blue Rhino Septic Llc | Long Beach, MS | — | Pumper | — |
| Blue Ridge Sanitation Services | Marion, MS | — | Installer | — |
| Blue Springs Septic Service | Blue Springs, MS | — | Pumper | — |
| Bo Patterson Lawn & Garden | Durant, MS | — | Installer | — |
| Bo Shields Tank Service | Moss Point, MS | — | Installer | — |
| Bob'S Septic Tank And Vacuum Service | Biloxi, MS | — | Pumper | — |
| Bond Septic Service Llc | Gulfport, MS | — | Pumper | — |
| Bottom 2 Top Construction Llc | Biloxi, MS | — | Installer | — |
| Bouchillon Services | Marks, MS | — | Installer | — |
| Boudin Enviromental | Waveland, MS | — | Pumper | — |
| Box Construction | Mathiston, MS | — | Installer | — |
| Bradford & Son Plumbing | Ponotoc, MS | — | Pumper | — |
| Bradford & Sons Plumbing | Pontotoc, MS | — | Installer | — |
| Breeland'S Underground & Septic, Llc | Sumrall, MS | — | Installer | — |
| Brent Carpenter Backhoe Service | Holly Spring, MS | — | Installer | — |
| Brewer Construction | Cascilla, MS | — | Installer | — |
| Brewin Septic Tank Service | Pearl River, LA | — | Pumper | — |
| Bridgforth Properties, Inc. | Olive Branch, MS | — | Installer | — |
| Britts Septic Service | Wesson, MS | — | InstallerPumper | — |
| Broome Construction Services | Bassfield, MS | — | Installer | — |
| Browers Plumbing & Septic Solutions | Yazoo, MS | — | Installer | — |
| Brown Backhoe Service | Lexington, MS | — | Installer | — |
| Brown Septic Tank Service | Collinsville, MS | — | Installer | — |
| Brown, Terrance (Probationary) | Olive Branch, MS | — | Installer | — |
| Bruce King Plumbing, Inc. | Edwards, MS | — | Installer | — |
| Brumfield Sales & Service, Llc | Fayette, MS | — | Installer | — |
| Bryan Contractors, Llc. | Saraland, AL | — | Pumper | — |
| Bryant'S Three In One Enterprise, Inc. | Port Gibson, MS | — | Installer | — |
| Bsi Land Management | Laurel, MS | — | Installer | — |
| Budget Drain Masters | Brighton, TN | — | Pumper | — |
| Bufkin Mechanical Inc. | Madison, MS | — | Installer | — |
| Buildco & Sales, Llc | Ripley, MS | — | Installer | — |
| Burgess Associates, Llc | Mchenery, MS | — | InstallerPumper | — |
| Burns Septic Services | Utica, MS | — | Installer | — |
| Burt Construction | Abbeville, MS | — | Installer | — |
| Buzz Plaxico Dozer Service | Corinth, MS | — | Installer | — |
| Bywy Inc. | Ackerman, MS | — | Installer | — |
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