| BELL TELEPHONE LABORATORIES, INCORPORATEDAlbany, NY · Active | Albany, NY | Corporation | Jan 9, 1990 | Active |
| AG COMMUNICATION SYSTEMS CORPORATIONAlbany, NY · Active | Albany, NY | Corporation | Feb 7, 1989 | Active |
| RESTORATION BY COSTIKYAN LTD.Atlantic Beach, NY · Active | Atlantic Beach, NY | Corporation | Jan 9, 1986 | Active |
| YESKOO, HOGAN & TAMLYN LLPBrooklyn, NY · Active | Brooklyn, NY | Partnership | May 24, 2002 | Active |
| CHATALBASH BY COSTIKYAN, INC.New York, NY · Active | New York, NY | Corporation | Mar 26, 2009 | Active |
| SPLIT THE DIFFERENCE, INC.New York, NY · Active | New York, NY | Corporation | Apr 3, 2006 | Active |
| Nokia Innovations US LLCLocation not reported, AK · Good Standing | Location not reported, AK | LLC | Jul 12, 2019 | Good Standing |
| ADC Therapeutics America, Inc.Location not reported, AK · Good Standing | Location not reported, AK | Corporation | May 5, 2021 | Good Standing |
| Nokia of America CorporationLocation not reported, AK · Good Standing | Location not reported, AK | Corporation | Jan 17, 1996 | Good Standing |
| AIRCO, INC., Colorado Authority Terminated April 1, 2002Location not reported, CO · Revoked | Location not reported, CO | Corporation | Oct 18, 1983 | Revoked |
| Linde, Inc., Colorado Authority Relinquished May 8, 2009Location not reported, CO · Withdrawn | Location not reported, CO | Corporation | Jun 19, 1990 | Withdrawn |
| LUCENT TECHNOLOGIES SERVICES COMPANY, INC., Colorado Authority Relinquished May 26, 2009Location not reported, CO · Withdrawn | Location not reported, CO | Corporation | Aug 24, 1992 | Withdrawn |
| WESTERN ELECTRIC COMPANY, INCORPORATEDLocation not reported, CO · Good Standing | Location not reported, CO | Corporation | Jun 16, 1993 | Good Standing |
| Nokia of America CorporationLocation not reported, CO · Good Standing | Location not reported, CO | Corporation | Dec 29, 1995 | Good Standing |
| AG COMMUNICATION SYSTEMS CORPORATION, Colorado Authority Relinquished March 3, 2010Location not reported, CO · Withdrawn | Location not reported, CO | Corporation | Oct 4, 1996 | Withdrawn |
| DUN & BRADSTREET, INC., Colorado Authority Terminated December 1, 2000Location not reported, CO · Revoked | Location not reported, CO | Corporation | Jun 18, 1998 | Revoked |
| ASCEND COMMUNICATIONS, INC., Colorado Authority Relinquished May 17, 2016Location not reported, CO · Withdrawn | Location not reported, CO | Corporation | Feb 16, 1999 | Withdrawn |
| MONTBLANC, INC., Colorado Authority Terminated August 16, 2002Location not reported, CO · Withdrawn | Location not reported, CO | Corporation | May 7, 1999 | Withdrawn |
| WALK ELECTRIC, LLC, Colorado Authority Terminated November 1, 2001Location not reported, CO · Revoked | Location not reported, CO | LLC | May 14, 1999 | Revoked |
| L.T. FUNDING, LLC, Colorado Authority Relinquished March 4, 2010Location not reported, CO · Withdrawn | Location not reported, CO | LLC | May 26, 1999 | Withdrawn |
| MONTBLANC NORTH AMERICA, LLC, Delinquent October 1, 2011Location not reported, CO · Delinquent | Location not reported, CO | LLC | Apr 25, 2002 | Delinquent |
| AIRCO, INC., Colorado Authority Relinquished July 3, 2007Location not reported, CO · Withdrawn | Location not reported, CO | Corporation | Jun 18, 2002 | Withdrawn |
| FISCHBACH AND MOORE ELECTRIC, INC., Colorado Authority Terminated September 4, 2004Location not reported, CO · Revoked | Location not reported, CO | Corporation | Mar 12, 2003 | Revoked |
| Alcatel-Lucent Managed Solutions LLC, Colorado Authority Relinquished December 16, 2013Location not reported, CO · Withdrawn | Location not reported, CO | LLC | Nov 1, 2006 | Withdrawn |
| ARJ Infusion Services, LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Apr 29, 2014 | Good Standing |
| Stafford Communications Group Inc., Delinquent August 1, 2020Location not reported, CO · Delinquent | Location not reported, CO | Corporation | Mar 22, 2017 | Delinquent |
| ADC Therapeutics America, Inc.Location not reported, CO · Good Standing | Location not reported, CO | Corporation | Sep 6, 2017 | Good Standing |
| Sunmait Technologies ltd.Location not reported, CO · Good Standing | Location not reported, CO | LLC | Sep 21, 2017 | Good Standing |
| Nokia Innovations US LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Feb 13, 2018 | Good Standing |
| DataOnline LLC, Delinquent June 1, 2020Location not reported, CO · Delinquent | Location not reported, CO | LLC | Jan 11, 2019 | Delinquent |
| Sensory Spectrum, Inc., Dissolved January 24, 2023Location not reported, CO · Voluntarily Dissolved | Location not reported, CO | Corporation | Sep 9, 2019 | Voluntarily Dissolved |
| Highweb Corp.Location not reported, CO · Good Standing | Location not reported, CO | Corporation | Feb 10, 2020 | Good Standing |
| Sunmait, Inc.Location not reported, CO · Good Standing | Location not reported, CO | Corporation | Feb 19, 2021 | Good Standing |
| 5855 Vance Street 302, LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Oct 25, 2021 | Good Standing |
| Amanda fushi Inc, Delinquent June 26, 2024Location not reported, CO · Delinquent | Location not reported, CO | Corporation | Mar 11, 2024 | Delinquent |
| Chemetall US LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | May 7, 2025 | Good Standing |
| The Tilson Financial Group, Inc.Location not reported, CO · Good Standing | Location not reported, CO | Corporation | Jun 27, 2025 | Good Standing |
| Premier BPO LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Oct 15, 2025 | Good Standing |
| PremierNX ServicesLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Nov 17, 2025 | Good Standing |
| LINDE, INC. A DELAWARE CORPORATIONLocation not reported, CT · Withdrawn | Location not reported, CT | Corporation | Apr 28, 1977 | Withdrawn |
| GLASROCK HOME HEALTH CARE, INC.Location not reported, CT · Withdrawn | Location not reported, CT | Corporation | Dec 9, 1985 | Withdrawn |
| WESTERN ELECTRIC COMPANY, INCORPORATEDLocation not reported, CT · Active | Location not reported, CT | Corporation | Sep 15, 1986 | Active |
| NOKIA OF AMERICA CORPORATIONLocation not reported, CT · Active | Location not reported, CT | Corporation | Jan 3, 1996 | Active |
| WALK ELECTRIC, LLCLocation not reported, CT · Revoked | Location not reported, CT | LLC | Mar 27, 1998 | Revoked |
| ALCATEL USA MARKETING, INC.Location not reported, CT · Withdrawn | Location not reported, CT | Corporation | Mar 23, 1999 | Withdrawn |
| L.T. FUNDING, LLCLocation not reported, CT · Cancelled | Location not reported, CT | LLC | May 26, 1999 | Cancelled |
| NB REALTY, LLCLocation not reported, CT · Dissolved | Location not reported, CT | LLC | May 2, 2000 | Dissolved |
| RTK CORPORATION OF NEW JERSEYLocation not reported, CT · Revoked | Location not reported, CT | Corporation | Aug 9, 2000 | Revoked |
| ECCELERATE.COM, INC.Location not reported, CT · Withdrawn | Location not reported, CT | Corporation | Jan 29, 2001 | Withdrawn |
| INDUCTIS GROUP LLCLocation not reported, CT · Cancelled | Location not reported, CT | LLC | Jul 21, 2003 | Cancelled |