| Above All Sanitation, Inc | Veneta, OR | InstallerPumper | 38174 |
| All Dirt, Inc | Veneta, OR | InstallerPumper | 38973 |
| All Seasons Sanitation Llc | Florence, OR | Pumper | 39680 |
| B & T Excavation Llc | Eugene, OR | Installer | 39970 |
| Benjamin M Smith Construction Llc, Dba Tectonic Construction | Junction City, OR | Installer | 39463 |
| Best Septic Inc., Dba Best Septic Tank Pumping | Eugene, OR | InstallerPumper | 37467 |
| Best Septic, Inc, Dba Wally'S Septic Service | Florence, OR | Pumper | 38409 |
| Boulder Creek Excavation, Llc | Creswell, OR | Installer | 38796 |
| Braun Excavating, Inc. | Veneta, OR | Installer | 35884 |
| Brown Trout Pumping, Llc. | Florence, OR | InstallerPumper | 39647 |
| Bucks Sanitary Service Inc, Dba Buck'S Sanitary Service | Eugene, OR | Pumper | 34882 |
| Bucks Sanitary Service, Inc, Dba Royal Flush Environmental Services | Eugene, OR | InstallerPumper | 37035 |
| C & R Plumbing Llc | Springfield, OR | Installer | 39910 |
| Casey Jones Well Drilling Co., Inc., Dba C. J. Development Co. | Pleasant Hill, OR | Installer | 37624 |
| Chuck'S Plumbing, Inc. | Florence, OR | Installer | 38281 |
| Construction Business Solutions Llc, Dba Innovative Underground | Springfield, OR | Installer | 39424 |
| Daniel E. Wilson, Dba Dan Wilson Construction | Junction City, OR | Installer | 38706 |
| Dj Miller Construction, Inc | Marcola, OR | Installer | 38897 |
| Elevated Excavation And Dirt Work Llc | Junction City, OR | Installer | 39862 |
| Emerald Excavating, Inc | Eugene, OR | Installer | 39544 |
| Emmanuel Site Works, Llc | Pleasant Hill, OR | Installer | 38209 |
| Er Pipleline Services, Llc | Cottage Grove, OR | Installer | 39120 |
| G 2 Enterprises, Llc | Veneta, OR | Installer | 38159 |
| Greensuns Inc | Springfield, OR | Installer | 33878 |
| Hartsell Enterprises, Inc., Dba Hartsell Construction | Junction City, OR | Installer | 37743 |
| Hendrickson Well Drilling, Inc. | Cottage Grove, OR | Installer | 36884 |
| Hidden Gem Septic Llc | Cottage Grove, OR | Installer | 39716 |
| J. L. Walker And Sons Inc. | Mapleton, OR | Installer | 36467 |
| Jm Haugland Contracting Llc | Springfield, OR | Installer | 39905 |
| Leisure Excavating, Inc | Florence, OR | Installer | 37943 |
| Loose Deuce Septic & Tank Services Llc | Springfield, OR | Pumper | 39734 |
| Lunie'S Llc | Springfield, OR | Installer | 39886 |
| M.A.C. Carter Investments, Inc., Dba Bennett'S Drain Savers | Eugene, OR | Pumper | 36052 |
| Nathan P. Stapleton, Dba Stapleton Timber And Excavation | Springfield, OR | Installer | 38212 |
| Nicole Jessica Watts & John Fredrick Watts, Dba John'S Construction & Painting | Florence, OR | Installer | 39296 |
| Norse Earthworks Llc | Veneta, OR | Installer | 39803 |
| Oregon Septic Llc | Eugene, OR | InstallerPumper | 39848 |
| Portable Rock Production Company | Pleasant Hill, OR | Installer | 39041 |
| Ray E. Wells, Inc. | Florence, OR | Installer | 37263 |
| Ridgeline Excavation Llc | Springfield, OR | Installer | 39951 |
| Russells Excavation & Septic Pro'S Llc | Dexter, OR | Installer | 39758 |
| S & M Rock And Loam, Inc., Dba Stephen Michael Tieskie | Eugene, OR | Installer | 38389 |
| Siuslaw Salvage & Sales Co | Deadwood, OR | Installer | 37874 |
| Sos Septic Pumping Llc | Springfield, OR | Pumper | 39603 |
| South Valley Plumbing, Inc | Cottage Grove, OR | Installer | 39752 |
| Way To Go Construction Llc | Creswell, OR | Installer | 39359 |
| Westco Contracting Services Llc | Cottage Grove, OR | InstallerPumper | 39646 |