| Delta Automotive Services NJ | Transportation & Warehousing | 0 | — | F |
| Delta Bingo & Gaming MD | — | 0 | — | — |
| Delta Building Services, Inc. CA | Administrative & Waste Services | 0 | — | A |
| Delta Building Services, Inc. WA | Administrative & Waste Services | 0 | — | A |
| Delta C, LP CA | Arts & Entertainment | 0 | — | C |
| Delta C, LP dba Kings Card Club and Westland Card Room CA | — | 0 | — | — |
| Delta C, LP dba Kings card Club and Westlane Card Room CA | — | 0 | — | — |
| Delta Centrifugal TX | Manufacturing | 0 | — | C |
| Delta Chemical TX | Transportation & Warehousing | 0 | — | B |
| Delta Chemical - Deer Park TX | Wholesale Trade | 0 | — | D |
| Delta Chemical St. Gabriel LA | Transportation & Warehousing | 0 | — | A |
| Delta Circuits Inc NJ | Manufacturing | 0 | — | A |
| Delta College MI | Educational Services | 0 | — | B |
| Delta Commerce Corporation CA | Retail Trade | 0 | — | A |
| Delta Community Mental Health Center MS | — | 0 | — | — |
| Delta Community Supports NJ | Healthcare & Social Assistance | 0 | — | A |
| Delta Community Supports, Inc. PA | Healthcare & Social Assistance | 0 | — | F |
| Delta companies group LA | Transportation & Warehousing | 0 | — | A |
| Delta Companies Inc. MO | Construction | 0 | — | A |
| Delta Computer Consulting, Inc. CA | Professional & Technical Services | 9 | $141,782 | — |
| Delta Constrcutors TX | Construction | 0 | — | D |
| Delta construction and electric company CA | Construction | 0 | — | F |
| DELTA CONSTRUCTORS INC MS | Construction | 0 | — | A |
| Delta Constructors, LLC AK | Construction | 0 | — | A |
| Delta Constructors, LLC ND | Construction | 0 | — | A |
| Delta Constructors, LLC NM | Construction | 0 | — | A |
| Delta Constructrors AK | Construction | 0 | — | A |
| Delta Consulting Group, Inc. VA | Professional & Technical Services | 1 | $200,000 | — |
| DELTA CONTRACTING COMPANY LLC TN | Construction | 0 | — | A |
| Delta Contracting Inc. NC | Construction | 0 | — | F |
| Delta Contracting Services, Inc. NJ | Construction | 0 | — | D |
| Delta Controls Corporation LA | Manufacturing | 0 | — | A |
| Delta Correctional Facility MS | — | 0 | — | — |
| Delta Corrugated Paper Products NJ | Manufacturing | 0 | — | F |
| Delta Dental CA | — | 0 | — | — |
| Delta Dental Insurance Company GA | Finance & Insurance | 24 | $143,902 | — |
| Delta Dental Of California CA | Finance & Insurance | 19 | $145,091 | B |
| Delta Dental of Michigan, Inc. MI | Finance & Insurance | 9 | $26,291,615 | — |
| Delta Dental of Washington WA | Finance & Insurance | 1 | $110,000 | — |
| Delta Dental Plan of California CA | — | 0 | — | — |
| Delta Design, Inc. CA | Manufacturing | 2 | $136,111 | — |
| Delta Designs Ltd KS | Manufacturing | 0 | — | F |
| Delta Diablo CA | Utilities | 0 | — | F |
| Delta Directional Drilling TX | Construction | 0 | — | A |
| Delta Diversified Enterprises Inc AZ | Construction | 0 | — | A |
| Delta Downs Racetrack Casino and Hotel LA | — | 0 | — | — |
| Delta Dry Wall, Inc CO | Construction | 0 | — | F |
| DELTA ELECTRIC INC. NY | Construction | 0 | — | F |
| Delta Electric Power Association MS | Utilities | 0 | — | C |
| Delta Electrical Contractors OH | Construction | 0 | — | F |
