| IRBY CONSTRUCTION COMPANYLocation not reported, AK · Good Standing | Location not reported, AK | Corporation | Aug 31, 2004 | Good Standing |
| IRBY CONSTRUCTION COMPANYLocation not reported, CO · Good Standing | Location not reported, CO | Corporation | Dec 23, 1998 | Good Standing |
| KLLM Transport Services, LLCLocation not reported, CO · Delinquent | Location not reported, CO | Other | Mar 16, 2009 | Delinquent |
| WC LEASING, LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Jun 15, 2015 | Good Standing |
| TOTAL TRANSPORTATION OF MISSISSIPPI LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Feb 21, 2017 | Good Standing |
| Ecoshield Transport, LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Feb 4, 2019 | Good Standing |
| Lyle Machinery Co.Location not reported, CO · Good Standing | Location not reported, CO | Corporation | Apr 15, 2021 | Good Standing |
| WC LEASING-CT, LLCLocation not reported, CT · Active | Location not reported, CT | LLC | Jun 14, 2018 | Active |
| WC LEASING LLCLocation not reported, OR · Active | Location not reported, OR | LLC | Jun 22, 2017 | Active |
| THE CALVERT COMPANY LLCLocation not reported, OR · Active | Location not reported, OR | LLC | Dec 5, 2022 | Active |
| IRBY CONSTRUCTION COMPANYLocation not reported, OR · Active | Location not reported, OR | Corporation | Dec 30, 1998 | Active |
| GREAT SOUTHERN TRUCK COMPANYLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Mar 20, 2000 | Inactive |
| RENALAB, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Oct 31, 2006 | Inactive |
| BUREL PHARMACEUTICALS, INCLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Apr 17, 2012 | Inactive |
| THE CALVERT COMPANY OF MS, INCLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Apr 18, 2012 | Inactive |
| ELECTRO-MECH INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Oct 29, 2013 | Active |
| THE CALVERT COMPANY INC OF MSLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Jan 14, 2020 | Inactive |
| IRBY CONSTRUCTION COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Dec 21, 1998 | Active |
| VACUUM TRUCK RENTALS, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Jul 5, 2016 | Active |
| W C LEASING, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Jan 16, 2019 | Active |
| ESI SUPPLY, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Jun 3, 2019 | Active |
| VACUUM TRUCK SALES & SERVICE, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Jul 25, 2019 | Active |
| PETROLEUM EQUIPMENT HOLDINGS, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Feb 22, 2022 | Active |
| THE CALVERT COMPANY LLC OF MSLocation not reported, FL · Active | Location not reported, FL | LLC | Aug 29, 2023 | Active |
| ECOSHIELD TRANSPORT, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Feb 27, 2026 | Active |
| KLLM, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Dec 15, 1989 | Inactive |