| BCBrightmark C-dairy Rng LLC | Mondovi | WI | — | ◇ UNVERIFIED |
| BFBrightmark Full Circle Rng, LLC | Hurley | SD | — | ◇ UNVERIFIED |
| BMBrightmark Mill Valley Rng, LLC | Milbank | SD | — | ◇ UNVERIFIED |
| BRBrightmark Red Arrow Rng, LLC (p1159) | Hartford | MI | — | ◇ UNVERIFIED |
| BRBrightmark Rng Facility - Black Soil | Granville | IA | — | ◇ UNVERIFIED |
| BRBrightmark Rng Facility - Boxler Dairy Farm | Varysburg | NY | — | ◇ UNVERIFIED |
| BRBrightmark Rng Facility - Kirkman | Kirkman | IA | — | ◇ UNVERIFIED |
| BRBrightmark Rng Facility - Lake Shore Dairy LLC | Wilson | NY | — | ◇ UNVERIFIED |
| BRBrightmark Rng Facility - Lamb Farms INC | Oakfield | NY | — | ◇ UNVERIFIED |
| BRBrightmark Rng Facility - Legacy | Sanborn | IA | — | ◇ UNVERIFIED |
| BRBrightmark Rng Facility - Roorda | Paullina | IA | — | ◇ UNVERIFIED |
| BRBrightmark Rng Facility - Swiss Valley Farms | Warsaw | NY | — | ◇ UNVERIFIED |
| BRBrightmark Rng Facility - Van Ess | Sanborn | IA | — | ◇ UNVERIFIED |
| BRBrightmark Rng Facility - Willet Dairy LLC | King Ferry | NY | — | ◇ UNVERIFIED |
| BCBti Carlin Air Separation Plant | Carlin | NV | — | ◇ UNVERIFIED |
| BHBucking Horse Plant | Converse | WY | — | ◇ UNVERIFIED |
| CICaire INC. | San Diego | CA | — | ◇ UNVERIFIED |
| CCCalpine Clear Lake Cogeneration | Pasadena | TX | — | ◇ UNVERIFIED |
| CCameron | Pittsburg | CA | — | ◇ UNVERIFIED |
| CICarbide Industries LLC Calvert City | Calvert City | KY | — | ◇ UNVERIFIED |
| CACarlin Autoclave Oxygen Plant (formerly Goldstrike Mine) | Carlin | NV | — | ◇ UNVERIFIED |
| CCCarter Creek Gas Plant | Uinta | WY | — | ◇ UNVERIFIED |
| CDCea Dairy Rng Kansas, LLC - Rexford Rng Facility (air) | Rexford | KS | — | ◇ UNVERIFIED |
| CBCedar Bayou Hydrogen Facility | Baytown | TX | — | ◇ UNVERIFIED |
| CDCentro De Gas Hiram CORP. | Aguada | PR | — | ◇ UNVERIFIED |
| CICGI International, LLC and CGI International, Inc. | Washington | PA | — | ◇ UNVERIFIED |
 Charm Industrial - 2290 | Fort Lupton | CO | — | ◇ UNVERIFIED |
| CLCharm Louisiana LLC | Saint Landry | LA | — | ◇ UNVERIFIED |
| CCChemours - Corpus Christi Plant | Gregory | TX | — | ◇ UNVERIFIED |
| CICil Isotope Separations, INC. (0829100409) | Xenia | OH | — | ◇ UNVERIFIED |
| CCClariant Corporation | Kern County | CA | — | ◇ UNVERIFIED |
| CEClean Energy S-21072 | Romeoville | IL | — | ◇ UNVERIFIED |
| CEClean Energy S-21076 | Penns Grove | NJ | — | ◇ UNVERIFIED |
| CEClean Energy Systems Kimberlina, INC. | Bakersfield | CA | — | ◇ UNVERIFIED |
| CLCnty Line Clnr Svc | Huntingdon Valley | PA | — | ◇ UNVERIFIED |
| CIColorado Interstate Gas Resources Compan | Cheyenne Wells | CO | — | ◇ UNVERIFIED |
| CCContinental Carbonic-denison | Denison | IA | — | ◇ UNVERIFIED |
| CCContinental Carbonic-el Dorado | El Dorado | AR | — | ◇ UNVERIFIED |
| CCContinental Carbonic Products | El Dorado | AR | — | ◇ UNVERIFIED |
| CCContinental Carbonic Products - Bridgeport Tx | Bridgeport | TX | — | ◇ UNVERIFIED |
| CCContinental Carbonic Products, INC. | Denison | IA | — | ◇ UNVERIFIED |
| CCContinental Carbonic Products Inc.-clearfield | Clearfield | PA | — | ◇ UNVERIFIED |
| CTCreighton Term | Creighton | PA | — | ◇ UNVERIFIED |
| CSCryogenic Services, LTD. | Canton | OH | — | ◇ UNVERIFIED |
| CGCsi Gas LLC | Humble | TX | — | ◇ UNVERIFIED |
| DDac-1 | Notrees | TX | — | ◇ UNVERIFIED |
| DMDallas - Metro | Grand Prairie | TX | — | ◇ UNVERIFIED |
| DPDcg Partnership 1 | Pearland | TX | — | ◇ UNVERIFIED |
| DBDexter Biogas Facility | Dexter | NM | — | ◇ UNVERIFIED |
| DCDiversified Cpc International INC. | Sebring | FL | — | ◇ UNVERIFIED |
