| 21ST CENTURY DIGITAL, INC. | 0450953 | 1998-02-18 | Unknown | — |
| 21st Century Earth, Corporation | 1032233 | 2008-03-11 | Dissolved | Raleigh |
| 21st Century Education Incorporated | 0226193 | 1988-04-07 | Unknown | Raleigh |
| 21st Century Enterprises, Inc. | 2061288 | 2020-10-06 | Dissolved | Rocky Mount |
| 21ST CENTURY ENTERPRISES, INC. | 0443045 | 1997-11-20 | Dissolved | Winston-salem |
| 21st Century Farm, LLC | 1497261 | 2016-02-10 | Revoked | Cornelius |
| 21st Century Fatherhood, LLC | 2413381 | 2022-05-12 | Dissolved | Morrisville |
| 21st Century Forestry LLC | 1370187 | 2014-03-29 | Active | Wadesboro |
| 21st Century Fox USA, Inc. | 0910200 | 2007-04-27 | Unknown | Cornelius |
| 21ST CENTURY GENERAL CONTRACTORS, INC. | 1466829 | 2015-08-31 | Unknown | Charlotte |
| 21st Century Golf, Inc. | 0438188 | 1997-09-22 | Unknown | — |
| 21st Century Goliath, LLC | 1413730 | 2014-11-24 | Dissolved | Charlotte |
| 21st Century Home Builders Inc. | 0403641 | 1996-08-12 | Unknown | Concord |
| 21ST CENTURY HOMES, LLC | 0445022 | 1997-12-16 | Dissolved | Apex |
| 21st Century Hosiery, Inc. | 0142007 | 1984-01-25 | Active | Haw River |
| 21st Century Innovations, LLC | 0594675 | 2001-06-18 | Dissolved | Burlington |
| 21st Century Insurance and Financial Services, Inc. | 0157354 | 1985-04-10 | Withdrawn | Raleigh |
| 21st Century Investment Corporation | 1191096 | 2011-03-01 | Unknown | Greenville |
| 21st Century investment LLC | 2425730 | 2022-06-01 | Dissolved | Dunnellon |
| 21st Century Investments Corp. | 0602951 | 2001-09-04 | Unknown | Rocky Mount |
| 21ST CENTURY INVESTORS INC. | 0488839 | 1999-03-22 | Dissolved | Charlotte |
| 21st Century Kids LLC | 1134079 | 2010-01-29 | Dissolved | Chapel Hill |
| 21st Century Leadership, LLC | 1056006 | 2008-07-29 | Active | Sunset Beach |
| 21st Century Learning & Consulting, LLC | 1704725 | 2018-05-17 | Active | Hillsborough |
| 21st Century Learning Solutions LLC | 1547204 | 2016-10-03 | Dissolved | Charlotte |
| 21st Century Libraries Consulting, LLC | 2336543 | 2022-01-13 | Dissolved | Asheville |
| 21ST CENTURY LIMITED OF NC | 0497291 | 1999-06-18 | Unknown | Clarkton |
| 21ST CENTURY LOGISTICS, INC. | 0406577 | 1996-09-24 | Dissolved | Hendersonville |
| 21st Century Management Corp. | 0603309 | 2001-09-06 | Unknown | Rocky Mount |
| 21ST CENTURY MARKETING INC. | 0431794 | 1997-07-10 | Unknown | Leicester |
| 21st Century Media Newspaper, LLC | 1338658 | 2013-09-18 | Active | Raleigh |
| 21ST CENTURY MERCHANDISERS, INC. | 0401617 | 1996-07-17 | Unknown | Matthews |
| 21st Century Ministries, Inc. | 1462810 | 2015-08-10 | Active | Durham |
| 21st Century Mogul LLC | 1271065 | 2012-07-27 | Dissolved | Jacksonville |
| 21st Century Mommy LLC. | 2091047 | 2020-12-03 | Dissolved | Morrisville |
| 21st Century Pencils, LLC | 0720679 | 2004-04-13 | Dissolved | Raleigh |
| 21ST CENTURY PERSONNEL LLC | 1874575 | 2019-07-31 | Active | Raleigh |
| 21St Century Pizza, Inc. | 0549826 | 2000-05-17 | Unknown | Moyock |
| 21st Century Policing, LLC | 1693092 | 2018-04-19 | Revoked | Raleigh |
| 21st Century Pools, Inc. | 1236294 | 2011-12-30 | Dissolved | Pineville |
| 21st Century Prints, Inc. | 0314571 | 1992-10-19 | Unknown | Greensboro |
| 21ST CENTURY PRODUCTIONS, INC. | 0517014 | 1999-12-30 | Unknown | Madison |
| 21st Century Products, Inc. | 1291982 | 2012-12-14 | Active | Greensboro |
| 21st Century Professionals Corp | 1240126 | 2012-01-24 | Dissolved | Charlotte |
| 21st Century Property Management LLC | 2596969 | 2023-03-17 | Active | Charlotte |
| 21st Century Protocol, LLC | 1280723 | 2012-10-02 | Dissolved | Charlotte |
| 21ST CENTURY RENOVATIONS, INC. | 0413322 | 1997-01-01 | Unknown | Rocky Mount |
| 21st Century Rentals, LLC | 0620658 | 2002-02-18 | Dissolved | Parkton |
| 21ST CENTURY RETIREMENT HOMES INC. | 0395640 | 1996-05-07 | Unknown | Goldsboro |
| 21ST CENTURY SAILING, LTD. | 0345702 | 1994-05-27 | Unknown | Kitty Hawk |