| Pro-inspect, Inc.Location not reported, PA · Not reported | Location not reported, PA | Corporation | Not reported | Not reported |
| KLEAN-KOTE INCLocation not reported, FL · Inactive | Location not reported, FL | Corporation | May 11, 1966 | Inactive |
| ALTAIR STRICKLAND, LPLocation not reported, FL · Inactive | Location not reported, FL | Partnership | Aug 14, 2002 | Inactive |
| TEXAS AMBER, L.P.Location not reported, FL · Inactive | Location not reported, FL | Partnership | Feb 19, 2003 | Inactive |
| KELSON INDUSTRIAL SERVICE CO., LTD.Location not reported, FL · Inactive | Location not reported, FL | Partnership | Mar 1, 2004 | Inactive |
| 1ST GLOBAL INDUSTRIAL SERVICES, LPLocation not reported, FL · Inactive | Location not reported, FL | Partnership | Apr 11, 2007 | Inactive |
| CAT-SPEC, LTD.Location not reported, FL · Inactive | Location not reported, FL | Partnership | May 14, 2007 | Inactive |
| STRONGHOLD TOWER GROUP, LTD.Location not reported, FL · Active | Location not reported, FL | Partnership | Oct 2, 2024 | Active |
| CAT-SPEC, LTD.Location not reported, FL · Active | Location not reported, FL | Partnership | Oct 9, 2024 | Active |
| LA PORTE WAREHOUSE CO., INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Mar 23, 2001 | Inactive |
| LONGVIEW INSPECTION, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Apr 17, 2001 | Inactive |
| GS INDUSTRIES, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Feb 21, 2002 | Inactive |
| TURNAROUND WELDING SERVICES, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Jun 10, 2002 | Inactive |
| KELSON MANAGEMENT, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Mar 1, 2004 | Inactive |
| OATES INDUSTRIES, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Sep 12, 2005 | Inactive |
| BBB TANK SERVICES, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Apr 24, 2009 | Inactive |
| HAMDUR, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Jun 19, 2009 | Inactive |
| AUSTIN INDUSTRIAL SPECIALTY SERVICES, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Jan 29, 2010 | Active |
| FGP HOLDINGS III CORP.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Feb 16, 2021 | Inactive |
| SULZER TURBO SERVICES HOUSTON INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Mar 22, 2021 | Active |
| CONTECH CONTROL SERVICES, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Sep 27, 2022 | Active |
| STARCON INTERNATIONAL, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Aug 30, 1996 | Active |
| THE SAFE SEAL COMPANY, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Jan 29, 1997 | Inactive |
| JOINT VENTURE PIPING, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Sep 1, 1998 | Inactive |
| AUSTIN MAINTENANCE & CONSTRUCTION, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Nov 22, 1999 | Active |
| MARINE DEBRIS MANAGEMENT, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | May 18, 1989 | Inactive |
| 3E NDT, L.L.C.Location not reported, FL · Active | Location not reported, FL | LLC | Jul 16, 2003 | Active |
| KEY WEST DONUT SHOP, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Jul 11, 2011 | Inactive |
| ART OF LIFE INVESTMENT LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Feb 25, 2021 | Inactive |
| UP 5 CONSTRUCTION LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Apr 17, 2023 | Inactive |
| ASI MANAGEMENT, L.L.C.Location not reported, FL · Inactive | Location not reported, FL | LLC | Aug 14, 2002 | Inactive |
| ASI-MW MANAGEMENT, L.L.C.Location not reported, FL · Inactive | Location not reported, FL | LLC | Aug 14, 2002 | Inactive |
| ASI-JR MANAGEMENT, L.L.C.Location not reported, FL · Inactive | Location not reported, FL | LLC | Aug 14, 2002 | Inactive |
| AMBER GP JS, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Feb 19, 2003 | Inactive |
| INTERNATIONAL PLANT SERVICES, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Jul 17, 2007 | Inactive |
| ATLAS COPCO RENTAL LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Feb 8, 2008 | Active |
| STRONGHOLD GENERAL, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Apr 13, 2018 | Active |
| COLT ATLANTIC SERVICES, LLCLocation not reported, FL · Inactive | Location not reported, FL | LLC | Oct 5, 2021 | Inactive |
| STRONGHOLD SPECIALTY GENERAL LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Sep 23, 2024 | Active |
| NDT EXPERTS, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Oct 10, 2007 | Active |
| ROADRUNNER PCB CORPORATIONLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Jun 30, 2015 | Inactive |
| INSULTHERM, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Jul 5, 1990 | Active |
| FORREST SERVICES, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Jan 23, 1992 | Inactive |