| 21C OATS, LLC | — | 10091524 | 2006-11-20 | Inactive | SOUTH SIOUX CITY |
| 21C, LLC | — | 10130866 | 2010-01-08 | Inactive | — |
| 21ST CENTURY ADVISORY SERVICES, INC. | — | 10092380 | 2006-12-18 | Inactive | — |
| 21ST CENTURY AG, INC. | — | 1668046 | 1998-09-11 | Inactive | CLARKS |
| 21ST CENTURY AUTOMOTIVE MARKETING ASSOCIATION, INC. | — | 0855235 | 1986-07-18 | Inactive | — |
| 21ST CENTURY BILLING, INC. | — | 1218201 | 1992-12-18 | Inactive | CAMBRIDGE |
| 21ST CENTURY CLEANING, INC. | — | 10008830 | 2000-01-04 | Inactive | LINCOLN |
| 21ST CENTURY CONSULTANTS, INC. | — | 1599252 | 1997-12-17 | Inactive | OMAHA |
| 21ST CENTURY CONTRACTING, INC. | — | 1907197652 | 2019-07-23 | Active | LINCOLN |
| 21ST CENTURY DEEP CLEANING SERVICES LLC | — | 2503138380 | 2025-03-13 | Active | OMAHA |
| 21ST CENTURY DIESEL, INC. | — | 10024932 | 2001-06-14 | Inactive | — |
| 21ST CENTURY ENVIRONMENTAL MANAGEMENT OF NEVADA, LLC | — | 10124316 | 2009-06-18 | Active | BOSTON |
| 21ST CENTURY EQUIPMENT II, INC. | — | 1490550 | 1996-09-23 | Inactive | SCOTTSBLUFF |
| 21ST CENTURY EQUIPMENT, LLC | Manufacturing | 10106480 | 2008-01-09 | Active | SCOTTSBLUFF |
| 21ST CENTURY FINANCIAL GROUP, INC. | — | 1047657 | 1989-12-19 | Inactive | OMAHA |
| 21ST CENTURY GENETICS, INC. | — | 0805653 | 1985-08-30 | Inactive | — |
| 21ST CENTURY GRAIN PROCESSING COOPERATIVE | — | 10043149 | 2003-03-03 | Inactive | — |
| 21ST CENTURY HOLDINGS II, INC. | — | 1597976 | 1997-12-12 | Active | SCOTTSBLUFF |
| 21ST CENTURY HOLDINGS L, LLC | — | 2209173185 | 2022-09-08 | Active | BRIDGEPORT |
| 21ST CENTURY HOLDINGS P, LLC | — | 2208165366 | 2022-08-22 | Active | SCOTTSBLUFF |
| 21ST CENTURY HOLDINGS, LLC | — | 10106483 | 2008-01-09 | Active | SCOTTSBLUFF |
| 21ST CENTURY INSURANCE AND FINANCIAL SERVICES, INC. | — | 0799076 | 1985-07-15 | Inactive | WILMINGTON |
| 21ST CENTURY INVESTMENT CO., L.L.C. | — | 10000539 | 1999-03-23 | Active | KEARNEY |
| 21ST CENTURY LAND, LLC | — | 10015120 | 2000-07-20 | Active | SCOTTSBLUFF |
| 21ST CENTURY LEASING, LLC | — | 10201520 | 2014-12-19 | Active | SCOTTSBLUFF |
| 21ST CENTURY MAGI, LLC | — | 2011158067 | 2020-11-23 | Active | NORTH PLATTE |
| 21ST CENTURY MOBILE TAX AND BOOKKEEPING SERVICES LLC | — | 2009138228 | 2020-09-23 | Inactive | BELLEVUE |
| 21ST CENTURY MORTGAGE, INC. | — | 10013770 | 2000-06-01 | Inactive | — |
| 21ST CENTURY PROPERTIES, L.L.C. | — | 10003135 | 1999-06-21 | Inactive | BELLEVUE |
| 21ST CENTURY REALTY GROUP | — | 10053349 | 2003-12-19 | Active | — |
| 21ST CENTURY REHAB P.C. | — | 1417587 | 1995-10-31 | Inactive | — |
| 21ST CENTURY SARGENT, LLC | — | 2603076783 | 2026-03-11 | Active | WESTERVILLE |
| 21ST CENTURY SOLUTIONS, INC. | — | 1398744 | 1995-07-27 | Inactive | OMAHA |
| 21ST CENTURY SYSTEMS, INC. | — | 10053715 | 2003-12-31 | Inactive | OMAHA |
| 21ST CENTURY TRANSFER, LLC | — | 2112309615 | 2021-12-01 | Active | NORFOLK |
| 21ST CENTURY VISIONARIES, L.L.C. | — | 10030050 | 2001-12-20 | Active | NORTH PLATTE |
| 21ST CENTURY WATER TECHNOLOGIES, LLC | — | 10134543 | 2010-04-20 | Active | SCOTTSBLUFF |
| 21ST COMMUNITIES, INC. | — | 10185972 | 2013-12-20 | Active | KNOXVILLE |
| 21ST EXPERIENCE INCORPORATED | — | 0607029 | 1981-11-30 | Inactive | — |
| 21ST INVESTMENTS, L.L.C. | — | 10001990 | 1999-05-14 | Inactive | KEARNEY |
| 21ST MORTGAGE CORPORATION | — | 10025258 | 2001-06-26 | Active | KNOXVILLE |
| 21ST STREET PROPERTIES, LLC | — | 10089445 | 2006-09-22 | Inactive | KEARNEY |
| 21ST STREET VENTURES, LLC | — | 10145265 | 2011-03-01 | Active | KEARNEY |
| 21VISIONS LLC | — | 10168806 | 2012-11-14 | Inactive | LINCOLN |
| 22 EAGLE RANCH, LLC | — | 10134359 | 2010-04-14 | Active | ST PAUL |
| 22 HEARTBEATS | — | 1910229424 | 2019-10-31 | Inactive | OMAHA |
| 22 MILES LLC | — | 2404097521 | 2024-04-08 | Inactive | OMAHA |
| 22 TALLOW, LLC | — | 2602052636 | 2026-02-19 | Active | EXETER |
| 22/29 FINISH CARPENTRY, INC | — | 2607162808 | 2026-07-08 | Active | LINCOLN |
| 220 ACREAGE HOA, INC. | — | 2307293678 | 2023-07-21 | Active | HARTINGTON |