| AMPACITY, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Mar 15, 2023 | Active |
| NGI CONSTRUCTION, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Jan 16, 2014 | Active |
| CUPERTINO ELECTRIC, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Nov 3, 2016 | Active |
| ELITE CONSTRUCTION OF OCALA, LLCOcala, FL · Active | Ocala, FL | LLC | Dec 16, 2021 | Active |
| NAES NORTHEAST LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Feb 28, 2011 | Active |
| NORTH AMERICAN INDUSTRIAL SERVICES, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | May 8, 2002 | Active |
| QUANTA POWER SOLUTIONS, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Mar 6, 2017 | Active |
| CRUX SUBSURFACE, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Dec 10, 2014 | Active |
| ROBINSON BROTHERS CONSTRUCTION, LLCLocation not reported, FL · Active | Location not reported, FL | LLC | Oct 11, 2021 | Active |
| PRICE GREGORY INTERNATIONAL, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Aug 21, 1981 | Inactive |
| H.L. CHAPMAN PIPELINE CONSTRUCTION, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Apr 10, 2000 | Active |
| SOUTHERN ELECTRIC CORPORATION OF MISSISSIPPILocation not reported, FL · Active | Location not reported, FL | Corporation | Dec 1, 2000 | Active |
| NORTHSTAR ENERGY SERVICES, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Mar 12, 2002 | Active |
| J.C.R. CONSTRUCTION CO., INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Mar 25, 2002 | Active |
| THE COMTRAN GROUP, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Nov 16, 2004 | Active |
| HARGRAVE POWER, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Dec 16, 2004 | Inactive |
| MEARS GROUP, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Jun 5, 2006 | Active |
| WINCO POWERLINE SERVICES, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Sep 1, 2006 | Active |
| QUANTA UTILITY ENGINEERING SERVICES, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Sep 6, 2006 | Inactive |
| WILSON UTILITY CONSTRUCTION COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Nov 13, 2006 | Active |
| REAL TIME UTILITY ENGINEERS, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | May 8, 2007 | Inactive |
| THE RYAN COMPANY OF MASSACHUSETTS, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Jun 3, 2008 | Active |
| DACON CORPORATIONLocation not reported, FL · Active | Location not reported, FL | Corporation | Jan 22, 2010 | Active |
| DASHIELL CORPORATIONLocation not reported, FL · Active | Location not reported, FL | Corporation | Jan 22, 2010 | Active |
| MEJIA PERSONNEL SERVICES, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Jun 28, 2010 | Active |
| HAVERFIELD INTERNATIONAL INCORPORATEDLocation not reported, FL · Active | Location not reported, FL | Corporation | Feb 12, 2013 | Active |
| QUANTA POWER GENERATION, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Aug 13, 2013 | Inactive |
| ENERGY CONSTRUCTION SERVICES, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Jan 16, 2014 | Inactive |
| NLC FL., INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Mar 2, 2015 | Inactive |
| T. G. MERCER CONSULTING SERVICES, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Mar 13, 2015 | Active |
| AEDON CONSULTING INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Mar 8, 2016 | Inactive |
| GRID TRAINING CORPORATIONLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Jun 13, 2016 | Inactive |
| PROBST ELECTRIC INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Aug 16, 2017 | Active |
| BRINK CONSTRUCTORS, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Oct 30, 2017 | Active |
| PHOENIX POWER GROUP, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Apr 4, 2018 | Active |
| UTILITY TRAINING SERVICES CORPORATIONLocation not reported, FL · Inactive | Location not reported, FL | Corporation | Apr 11, 2018 | Inactive |
| APPRENTICESHIP PROGRAMS, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Apr 11, 2018 | Inactive |
| CONAM CONSTRUCTION CO.Location not reported, FL · Active | Location not reported, FL | Corporation | Mar 19, 2021 | Active |
| INTERMOUNTAIN ELECTRIC, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Sep 24, 2025 | Active |
| M. G. DYESS INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Sep 27, 1996 | Inactive |
| UNDERGROUND CONSTRUCTION CO., INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Sep 21, 1998 | Active |
| SUMTER UTILITIES, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Sep 24, 1998 | Active |
| IRBY CONSTRUCTION COMPANYLocation not reported, FL · Active | Location not reported, FL | Corporation | Dec 21, 1998 | Active |
| SERVICE ELECTRIC COMPANY OF DELAWARELocation not reported, FL · Active | Location not reported, FL | Corporation | Jun 8, 1999 | Active |
| MID AMERICA ENERGY SERVICES, INC.Location not reported, FL · Active | Location not reported, FL | Corporation | Aug 3, 1999 | Active |
| PRICE GREGORY CONSTRUCTION, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Nov 8, 1999 | Inactive |
| PAR ELECTRICAL CONTRACTORS, INC.Location not reported, FL · Inactive | Location not reported, FL | Corporation | Dec 21, 1999 | Inactive |
| CEIG SERVICES LLCJacksonville, FL · Inactive | Jacksonville, FL | LLC | Mar 23, 2020 | Inactive |
| CEIGG SERVICES LLCJacksonville, FL · Inactive | Jacksonville, FL | LLC | Nov 23, 2021 | Inactive |
| E&C JAX SERVICES LLCJacksonville, FL · Inactive | Jacksonville, FL | LLC | Aug 31, 2023 | Inactive |