| Cook and Boardman NC, LLC MD | Wholesale Trade | 0 | — | A |
| Cook and Boardman NC, LLC ME | Wholesale Trade | 0 | — | F |
| Cook and Boardman NC, LLC SC | Wholesale Trade | 0 | — | F |
| Cook and Boardman NC, LLC TN | Wholesale Trade | 0 | — | C |
| Cook and Boardman NC, LLC VA | Wholesale Trade | 0 | — | F |
| Cook Coal Terminal IL | — | 0 | — | — |
| Cook Concrete Products Inc CA | Manufacturing | 0 | — | F |
| Cook County IL | Public Administration | 0 | — | F |
| Cook County Government IL | Public Administration | 0 | — | C |
| Cook County Health IL | Healthcare & Social Assistance | 1 | $435,475 | D |
| Cook County School District 130 IL | Educational Services | 0 | — | D |
| Cook Drywall Corporation CA | Construction | 0 | — | F |
| Cook General Engineering, Inc. CA | Construction | 0 | — | A |
| Cook Hospital and Care Center MN | Healthcare & Social Assistance | 0 | — | F |
| Cook Illinois Corp. IL | Transportation & Warehousing | 0 | — | F |
| Cook Incorporated IN | Manufacturing | 1 | $160,000 | F |
| Cook Inlet Aquaculture Associatino AK | Agriculture & Forestry | 0 | — | A |
| Cook Inlet Aquaculture Association AK | Agriculture & Forestry | 0 | — | D |
| Cook Inlet Tribal Council, Inc. AK | Healthcare & Social Assistance | 0 | — | A |
| Cook Inlet Tug and Barge AK | Transportation & Warehousing | 0 | — | A |
| Cook Law Firm PLLC NY | Professional & Technical Services | 1 | $115,000 | — |
| Cook Management Services Inc GA | Healthcare & Social Assistance | 0 | — | F |
| Cook Medical LLC IN | Manufacturing | 1 | $115,000 | B |
| Cook MFS INC TX | Other Services | 0 | — | A |
| Cook Museum of Natural Science AL | Arts & Entertainment | 0 | — | C |
| Cook MyoSite Incorporated PA | Manufacturing | 1 | $95,181 | — |
| Cook Paving & Construction Co., Inc. OH | Construction | 0 | — | D |
| Cook Plumbing Corporation IA | Construction | 0 | — | F |
| Cook Polymer Technology IN | Manufacturing | 0 | — | D |
| Cook Road AAL LP IN | Healthcare & Social Assistance | 0 | — | F |
| Cook Systems International, Inc. TN | Professional & Technical Services | 1 | $124,800 | — |
| Cook Vandergrift Inc. PA | Manufacturing | 0 | — | F |
| Cook Willow Convalescent Hospital CT | Healthcare & Social Assistance | 0 | — | F |
| Cook's Dry Cleaning, Inc. NY | Other Services | 0 | — | A |
| Cook's Excavating, LLC WV | Construction | 0 | — | A |
| Cook-MFS, Inc IN | Manufacturing | 0 | — | B |
| Cook/Jackson Company MI | Construction | 0 | — | D |
| Cook`s Pest Control, Inc AL | Administrative & Waste Services | 0 | — | F |
| Cook`s Pest Control, Inc FL | Administrative & Waste Services | 0 | — | F |
| Cook`s Pest Control, Inc GA | Administrative & Waste Services | 0 | — | F |
| Cook`s Pest Control, Inc TN | Administrative & Waste Services | 0 | — | F |
| Cooke Family Provisions MA | Wholesale Trade | 0 | — | A |
| Cooke Land Development Inc FL | Construction | 0 | — | A |
| Cookeville Heating & Cooling, LLC TN | Construction | 0 | — | F |
| Cookeville Regional Medical Center TN | Healthcare & Social Assistance | 2 | $500,000 | — |
| COOKFOX ARCHITECTS, DPC NY | Professional & Technical Services | 1 | $107,000 | — |
| Cookie Kingdom, Inc. IL | Manufacturing | 0 | — | D |
| Cookies Florida FL | Retail Trade | 0 | — | B |
| Cookies Inc NY | Professional & Technical Services | 0 | — | A |
| Cookies n Milk Inc. TX | Educational Services | 2 | $39,520 | — |
