| Institute for Intergovernmental Research, Inc. FL | - | 0 | - | - |
| Institute for Molecular Medicine CA | Professional & Technical Services | 1 | $138,000 | - |
| Institute for Musculoskeletal Advancement IL | Professional & Technical Services | 2 | $85,238 | - |
| Institute for Palestine Studies - USA DC | Information & Media | 1 | $54,766 | - |
| Institute for Systems Biology WA | Professional & Technical Services | 1 | $81,100 | - |
| Institute for the International Education of Students IL | - | 0 | - | - |
| Institute for the Redesign of Learning CA | Educational Services | 0 | - | D |
| Institute of Gas Technology IL | Professional & Technical Services | 7 | $119,525 | - |
| Institute of Information Technology, Inc. TX | Professional & Technical Services | 1 | $96,600 | - |
| Institute of International Finance DC | Other Services | 2 | $185,692 | - |
| Institute of Nuclear Medicine Inc. MD | Professional & Technical Services | 1 | $79,000 | - |
| Institute on Aging CA | Healthcare & Social Assistance | 0 | - | F |
| Institutes of Applied Human Dynamics, Inc. NY | - | 0 | - | - |
| Institutional Capital Network, Inc. NY | Finance & Insurance | 11 | $147,364 | - |
| Institutional Shareholder Services Inc. MD | Finance & Insurance | 4 | $124,925 | - |
| Instron, a Division of Illinois Tool Works MA | Manufacturing | 1 | $90,040 | - |
| Instructional ABA Consultants IL | Healthcare & Social Assistance | 1 | $78,607 | - |
| Instrument LLC OR | Professional & Technical Services | 3 | $125,683 | - |
| Instrumental Services INC NY | Professional & Technical Services | 6 | $151,833 | - |
| Instrumental, Inc. CA | Professional & Technical Services | 2 | $163,977 | - |
| Instrumentation Laboratory (Werfen) NY | Manufacturing | 0 | - | D |
| Instrumentation Laboratory Company MA | Wholesale Trade | 5 | $128,734 | A |
| Insulation Northwest, LLC WA | Construction | 0 | - | F |
| Insulet Corporation MA | Manufacturing | 15 | $150,305 | D |
| Insulsafe Textiles, Inc. ME | Manufacturing | 0 | - | C |
| Insurance Auto Auctions, Inc. IL | Wholesale Trade | 8 | $131,966 | - |
| Insurance Auto Auctions, Inc. MD | - | 0 | - | - |
| Insurance Leads.Com CA | - | 0 | - | - |
| Insurance Quantified, LLC DE | Professional & Technical Services | 1 | $73,570 | - |
| Insurance Services Office, Inc NJ | Finance & Insurance | 44 | $126,862 | - |
| Insurance.com OH | - | 0 | - | - |
| InsuredMine Inc. TX | Professional & Technical Services | 1 | $235,000 | - |
| Insurify, Inc. MA | Finance & Insurance | 1 | $112,500 | - |
| Insurity LLC CT | Professional & Technical Services | 5 | $108,403 | - |
| Insurtech, Inc. CA | Finance & Insurance | 1 | $210,000 | - |
| Insycom, Inc. MA | Professional & Technical Services | 4 | $97,971 | - |
| Insync Consulting Services LLC., CA | Administrative & Waste Services | 0 | - | F |
| Insync Staffing PA | Administrative & Waste Services | 0 | - | F |
| INSYS Group, Inc. NY | Professional & Technical Services | 1 | $124,384 | - |
| Insys Therapeutics, Inc AZ | - | 0 | - | - |
| Insyte Solutions TN | - | 0 | - | - |
| Int'l Falls Memorial Hospital, DBA Rainy Lake Medical Center MN | Healthcare & Social Assistance | 0 | - | F |
| Intair, LLC FL | Transportation & Warehousing | 1 | $85,500 | - |
| Intalent LLC TX | Professional & Technical Services | 4 | $115,231 | - |
| InTandem CO | Construction | 0 | - | F |
| Intarcia Therapeutics Inc. CA | - | 0 | - | - |
| Intealth, d/b/a ECFMG PA | Public Administration | 1 | $175,746 | - |
| Inteca IT Solutions LLC NC | Professional & Technical Services | 8 | $101,923 | - |
| inTech Trailers IN | Manufacturing | 0 | - | F |
| Integer MN | Manufacturing | 0 | - | A |
