| Diamond Products Limited OH | Manufacturing | 0 | — | C |
| DIAMOND R FERTILIZER CO INC - EAST PALATKA - 04 | 321 S.R. 207 FL | Wholesale Trade | 0 | — | A |
| DIAMOND R FERTILIZER CO INC - FT. PIERCE - 09 | 4100 GLADES CUT OFF ROAD FL | Wholesale Trade | 0 | — | A |
| DIAMOND R FERTILIZER CO INC - HOMESTEAD - 05 | 18375 SW 260TH STREET FL | Wholesale Trade | 0 | — | A |
| DIAMOND R FERTILIZER CO INC - LABELLE - 03 | 1155 COMMERCE DRIVE LT3 FL | Wholesale Trade | 0 | — | A |
| DIAMOND R FERTILIZER CO INC - OKEECHOBEE - 01 | 710 NE 5TH AVENUE FL | Wholesale Trade | 0 | — | A |
| DIAMOND R FERTILIZER CO INC - WINTER GARDEN - 02 | 321 NORTH HENNIS ROAD FL | Wholesale Trade | 0 | — | C |
| Diamond Ready Mix TX | Manufacturing | 0 | — | A |
| Diamond Refractory TX | Construction | 0 | — | A |
| Diamond Resorts - Palm Canyon Resort CA | — | 0 | — | — |
| Diamond Resorts Centralized CA | — | 0 | — | — |
| Diamond Resorts Centralized Services Company CA | — | 0 | — | — |
| Diamond Resorts Kaanapali Beach Club HI | — | 0 | — | — |
| Diamond Resorts Point at Poipu HI | — | 0 | — | — |
| Diamond Resorts The Modern HI | — | 0 | — | — |
| DIAMOND RIDGE NY | Healthcare & Social Assistance | 0 | — | A |
| Diamond Rock E 40th St NYCT NY | Accommodation & Food Services | 0 | — | A |
| Diamond Rock Times Square Tenant NY | Accommodation & Food Services | 0 | — | F |
| Diamond Roll-Up Door, Inc. OH | Manufacturing | 0 | — | F |
| Diamond Roofing Company, Inc. NY | Construction | 0 | — | F |
| Diamond Roofing Systems OH | Construction | 0 | — | C |
| Diamond S Mobile Welding LLC FL | Manufacturing | 0 | — | A |
| Diamond Sand & Gravel NJ | Manufacturing | 0 | — | F |
| Diamond Sand &Gravel NJ | Manufacturing | 0 | — | F |
| Diamond Saw Works, Inc. NY | Manufacturing | 0 | — | F |
| Diamond Scaffold Services, LLC AL | Construction | 0 | — | A |
| Diamond Shamrock Refining Company, LP TX | Manufacturing | 0 | — | A |
| Diamond Site Service AL | Other Services | 0 | — | A |
| Diamond Spas, Inc. CO | Manufacturing | 0 | — | F |
| Diamond State Masonry DE | Construction | 0 | — | F |
| Diamond State Trucking AR | Transportation & Warehousing | 0 | — | D |
| DIAMOND STEEL CONSTRUCTION OH | Construction | 0 | — | A |
| Diamond Surface Inc. MN | Construction | 0 | — | F |
| Diamond Technologies, Inc. DE | Professional & Technical Services | 3 | $60,798 | — |
| Diamond Technology Innovations WA | Manufacturing | 0 | — | F |
| Diamond Tool Manufacturing MI | Manufacturing | 0 | — | A |
| Diamond Transportation Services, Inc. MD | — | 0 | — | — |
| Diamond Transportation Services, Inc. VA | — | 0 | — | — |
| Diamond Tree Experts, Inc UT | Administrative & Waste Services | 0 | — | F |
| Diamond V Mills, Inc IA | Manufacturing | 0 | — | B |
| Diamond Valley Automotive Group, LLC CA | Retail Trade | 0 | — | F |
| Diamond Well Service inc. CA | Mining & Extraction | 0 | — | A |
| Diamond Wholesale Co NJ | Wholesale Trade | 0 | — | A |
| Diamond Windows & Doors Mfg., Inc. MA | Manufacturing | 0 | — | F |
| Diamond Wipes Int. OH | Manufacturing | 0 | — | B |
| Diamond Wipes International, Inc. CA | Manufacturing | 1 | $63,000 | F |
| Diamond Wire Material Technologies CO | — | 0 | — | — |
| Diamond Wire Spring Company PA | Manufacturing | 0 | — | F |
| Diamondback Acres Inc WA | Agriculture & Forestry | 0 | — | F |
| Diamondback Advisors NY, LLC NY | — | 0 | — | — |