| 86186307 | ISI | INGALLS INFORMATION SECURITY IP, LLC | — |
| 85487260 | ISI | Indicator Systems International, Inc. | — |
| 85025943 | ISI | Intertek Group Plc | — |
| 78566792 | ISI | Iron Sharpens Iron Men's Ministry, Inc. | — |
| 77648182 | ISI | ISI Communications, Inc. | — |
| 76212604 | ISI | Disegni International, Inc | — |
| 76199890 | ISI | THOMSON REUTERS (SCIENTIFIC) INC. | 2731163 |
| 76029903 | ISI | MDC Vacuum Products Corporation | — |
| 75767706 | ISI | Integrated Systems, Inc. | — |
| 75387109 | ISI | Sailing Institute, Inc., The | 2324840 |
| 75258097 | ISI | Injury Sciences, Inc. | — |
| 75258095 | ISI | Injury Sciences, Inc. | — |
| 75235141 | ISI | Vaisala, Inc. | — |
| 75224987 | ISI | Karsten Manufacturing Corporation | 2128883 |
| 75157400 | ISI | Interconnect Solutions, Inc. | 2814394 |
| 75157199 | ISI | Interconnect Solutions, Inc. | 2820562 |
| 75047179 | ISI | Karsten Manufacturing Corporation | 2047399 |
| 74644181 | ISI | INNOVATIVE SOLUTIONS INTERNATIONAL, INC. | — |
| 74551037 | ISI | INTERSTATE SAVINGS, INC. | 1948240 |
| 74537649 | ISI | Union Des Cooperatives Laitier D'Isigny-Sur-Mer Et De Sainte-Mere-Eglise | — |
| 74339496 | ISI | Innovative Surgical, Inc. | — |
| 74320174 | ISI | Interstrand Synthetics, Inc. | 1770442 |
| 74318166 | ISI | ISD+AI+IDI, Inc. | 1811251 |
| 74229244 | ISI | Inferno Snuffers, Inc. | — |
| 74227606 | ISI | Insurance Services, Inc. | — |
| 74199970 | ISI | M.H. Ingle & Associates Insurance Brokers Limited | 1754184 |
| 74172710 | ISI | Delaware Licensing Corp. | 1778884 |
| 74150589 | ISI | Inflation Systems, Inc. | — |
| 74141314 | ISI | Identification Solutions Inc. | — |
| 74136654 | ISI | Inflation Systems, Inc. | 1743897 |
| 74100480 | ISI | THOMAS SCIENTIFIC INC. | 1862952 |
| 73695099 | ISI | INTEGRATED SOLUTIONS, INC. | — |
| 73694599 | ISI | ION SYSTEMS, INC. | 1499337 |
| 73631859 | ISI | IMPORT SYSTEMS INTERNATIONAL, INC. | 1448659 |
| 73465218 | ISI | THOMAS SCIENTIFIC INC. | 1340228 |
| 73419879 | ISI | UNION AGRICOLE DES COOPERATIVES LAITIERES ISIGNY-SUR-MER & SAINTE-MERE EGLISE | — |
| 73357081 | ISI | Instrument Specialists, Inc. | 1246777 |
| 73351596 | ISI | Infinity Systems, Inc. | 1268213 |
| 73345524 | ISI | International Scientific Instruments, Inc. | 1234403 |
| 73321314 | ISI | Interplex Systems, Inc. | 1265933 |
| 73309097 | ISI | Industry Search Inc. | 1209976 |
| 73302290 | ISI | INTERPROCESS SYSTEMS INC | 1242601 |
| 73272319 | ISI | Inpersonam Service, Inc. | 1189006 |
| 73252807 | ISI | Insulation Service Inc. | 1182442 |
| 73252806 | ISI | Insulation Service Inc. | 1174552 |
| 73210012 | ISI | Impact Systems, Inc. | 1173160 |
| 73209310 | ISI | ISI Metallwarenfabrik Ges. m.b.H. | 1165096 |
| 73190720 | ISI | Innovative Systems, Inc. | 1164132 |
| 73105780 | ISI | ISI CORPORATION | 1069124 |
| 72391195 | ISI | INNOVATIVE SCIENCES, INC. | 0968355 |
