Top U.S. Companies by Market Cap for the Electric, Gas, And Sanitary Services Industry
Industry: 49 - Electric, Gas, And Sanitary Services Year:| Rank | Company | Revenue ($ millions) |
Assets | Market Cap Feb 17, 2026 |
|---|---|---|---|---|
| # 1 | Constellation Energy Corp | 23,568 | 52,926 | 104,514 |
| # 2 | Waste Management Inc. | 22,063 | 44,567 | 94,590 |
| # 3 | Williams Companies Inc. (The) | 10,503 | 54,532 | 88,270 |
| # 4 | American Electric Power Company Inc. | 19,721 | 103,078 | 70,280 |
| # 5 | Republic Services Inc. | 18,418 | 32,402 | 69,085 |
| # 6 | Vistra Corp. | 17,224 | 37,770 | 58,105 |
| # 7 | Dominion Energy Inc. | 14,459 | 102,415 | 56,794 |
| # 8 | ONEOK Inc. | 21,698 | 64,069 | 54,183 |
| # 9 | Exelon Corporation | 23,028 | 107,784 | 49,590 |
| # 10 | Xcel Energy Inc. | 13,441 | 70,035 | 48,264 |
| # 11 | Targa Resources Corp. | 16,382 | 22,734 | 48,060 |
| # 12 | Cheniere Energy, Inc. | 15,703 | 43,858 | 47,522 |
| # 13 | Entergy Corporation | 11,880 | 64,790 | 46,924 |
| # 14 | Public Service Enterprise Group Incorporated | 10,290 | 54,640 | 43,112 |
| # 15 | Waste Connections, Inc. | 8,920 | 19,818 | 41,280 |
| # 16 | Consolidated Edison Inc. | 15,256 | 70,562 | 41,046 |
| # 17 | WEC Energy Group Inc. | 8,600 | 47,363 | 37,666 |
| # 18 | NRG Energy Inc. | 28,130 | 24,022 | 37,000 |
| # 19 | Ameren Corporation | 7,623 | 44,598 | 30,017 |
| # 20 | Atmos Energy Corporation | 4,183 | 26,497 | 29,655 |
| # 21 | FirstEnergy Corp. | 13,472 | 52,044 | 28,941 |
| # 22 | Cheniere Energy Partners, L.P. | 8,704 | 17,453 | 28,869 |
| # 23 | PPL Corp | 8,462 | 41,069 | 27,977 |
| # 24 | CenterPoint Energy Inc (Holding Co) | 8,643 | 43,768 | 27,760 |
| # 25 | Eversource Energy | 11,901 | 59,595 | 27,524 |
| # 26 | Edison International | 17,599 | 85,579 | 27,497 |
| # 27 | American Water Works Company, Inc. | 4,653 | 32,830 | 26,056 |
| # 28 | NiSource Inc | 5,283 | 31,788 | 22,185 |
| # 29 | Duke Energy CORP | 30,050 | 186,343 | 19,216 |
| # 30 | Evergy, Inc. | 5,847 | 32,282 | 19,036 |
| # 31 | Alliant Energy Corporation | 3,981 | 22,714 | 18,300 |
| # 32 | Western Midstream Partners, LP | 3,605 | 13,145 | 17,719 |
| # 33 | Talen Energy Corp | 2,115 | 6,106 | 17,211 |
| # 34 | Clean Harbors Inc. | 5,890 | 7,377 | 14,631 |
| # 35 | SEMPRA | 13,185 | 96,155 | 14,537 |
| # 36 | DT Midstream, Inc. | 981 | 9,935 | 13,544 |
| # 37 | Pinnacle West Capital Corporation | 5,125 | 26,103 | 11,896 |
| # 38 | The AES Corporation | 12,278 | 47,406 | 11,593 |
| # 39 | Essential Utilities, Inc. | 2,086 | 18,027 | 11,243 |
| # 40 | Oklo Inc. | 282 | 10,264 | |
| # 41 | Antero Midstream Corp | 1,106 | 5,762 | 10,148 |
| # 42 | OGE Energy Corp | 2,985 | 13,716 | 9,656 |
| # 43 | UGI Corporation | 7,119 | 15,412 | 8,319 |
| # 44 | National Fuel Gas Company | 1,969 | 8,301 | 8,300 |
| # 45 | IDACORP Inc. | 1,769 | 9,239 | 7,797 |
| # 46 | Ormat Technologies Inc. | 880 | 5,666 | 7,184 |
| # 47 | Kinetik Holdings Inc. | 1,483 | 6,815 | 6,712 |
| # 48 | Casella Waste Systems Inc. | 1,557 | 3,230 | 6,586 |
| # 49 | PNM Resources Inc. (Holding Co.) | 1,971 | 11,212 | 6,457 |
| # 50 | Southwest Gas Holdings, Inc. | 5,112 | 12,024 | 6,351 |
| # 51 | Portland General Electric Co | 3,440 | 12,544 | 6,074 |
| # 52 | Archrock, Inc. | 1,158 | 3,824 | 5,728 |
| # 53 | Black Hills Corporation | 2,128 | 10,023 | 5,589 |
| # 54 | NewJersey Resources Corporation | 1,268 | 7,194 | 5,469 |
| # 55 | ONE Gas, Inc. | 8,426 | 5,162 | |
| # 56 | Excelerate Energy, Inc. | 851 | 2,883 | 4,771 |
| # 57 | Kodiak Gas Services, Inc. | 1,159 | 4,435 | 4,358 |
| # 58 | NorthWestern Energy Group, Inc. | 1,514 | 7,998 | 4,281 |
| # 59 | USA Compression Partners, LP | 950 | 2,746 | 3,750 |
| # 60 | Otter Tail Corp | 1,330 | 3,652 | 3,694 |
| # 61 | DTE Energy Company | 12,457 | 48,846 | 3,612 |
| # 62 | Avista Corporation | 1,938 | 7,941 | 3,505 |
| # 63 | Chesapeake Utilities Corporation | 787 | 3,577 | 3,207 |
| # 64 | MGE Energy Inc | 677 | 2,828 | 3,029 |
| # 65 | Hawaiian Electric Industries Inc. | 3,220 | 8,931 | 2,903 |
| # 66 | American States Water Company | 595 | 2,500 | 2,899 |
| # 67 | California Water Service Group | 906 | 5,180 | 2,775 |
| # 68 | Centuri Holdings, Inc. | 2,637 | 2,074 | 2,749 |
| # 69 | Northwest Natural Holding Co | 1,153 | 5,234 | 2,090 |
| # 70 | CADIZ Inc. | 10 | 134 | 1,591 |
| # 71 | NextDecade Corp. | 6,404 | 1,377 | |
| # 72 | Nano Nuclear Energy Inc. | 1 | 134 | 1,254 |
| # 73 | XPLR Infrastructure, LP | 1,230 | 20,292 | 1,014 |
| # 74 | UNITIL Corporation | 495 | 1,795 | 956 |
| # 75 | Hallador Energy Company | 404 | 369 | 880 |
| # 76 | Consolidated Water Co. Ltd. | 134 | 243 | 593 |
| # 77 | Clean Energy Fuels Corp. | 416 | 1,244 | 579 |
| # 78 | Summit Midstream Corp | 430 | 2,359 | 547 |
| # 79 | York Water Company (The) | 75 | 633 | 483 |
| # 80 | OPAL Fuels Inc. | 300 | 881 | 394 |
| # 81 | Genie Energy Ltd. | 425 | 371 | 387 |
| # 82 | New Fortress Energy Inc. | 2,365 | 12,867 | 347 |
| # 83 | Perma-Fix Environmental Services Inc. | 59 | 97 | 275 |
| # 84 | Pure Cycle Corporation | 29 | 150 | 270 |
| # 85 | Global Water Resources, Inc. | 53 | 405 | 264 |
| # 86 | Montauk Renewables, Inc. | 176 | 349 | 243 |
| # 87 | RGC Resources Inc. | 74 | 335 | 227 |
| # 88 | Via Renewables, Inc. | 399 | 345 | 188 |
| # 89 | Stabilis Solutions, Inc. | 73 | 86 | 103 |
| # 90 | Spruce Power Holding Corporation | 82 | 898 | 80 |
| # 91 | Quest Resource Holding Corp | 289 | 176 | 41 |
| # 92 | Ocean Power Technologies, Inc. | 6 | 34 | 39 |
| # 93 | Avalon Holdings Corporation | 84 | 86 | 10 |
| # 94 | Sky Quarry Inc. | 23 | 27 | 8 |
| # 95 | Southern Company (The) | 26,724 | 145,180 | 0 |
| # 96 | Tennessee Valley Authority | 12,469 | 58,363 | 0 |
| # 97 | Middlesex Water Company | 192 | 1,255 | |
| # 98 | Allete Inc. | 1,530 | 6,754 | |
| # 99 | NORTHERN STATES POWER CO /WI/ | 1,131 | 4,126 | |
| # 100 | PUBLIC SERVICE CO OF COLORADO | 5,272 | 26,594 |