| KAPPA OMICRON NU, INC.Belleair Bluffs, FL · Active | Belleair Bluffs, FL | Nonprofit | Feb 8, 2021 | Active |
| AMERICAN COUNCIL ON CONSUMER INTERESTS, INC.Belleair Bluffs, FL · Active | Belleair Bluffs, FL | Nonprofit | Jun 13, 2012 | Active |
| ENERGY ENGINEERING, INC.Location not reported, AK · Good Standing | Location not reported, AK | Corporation | Nov 13, 2017 | Good Standing |
| Encore Life Settlements LLCLocation not reported, AK · Good Standing | Location not reported, AK | LLC | May 15, 2023 | Good Standing |
| Energy Engineering, IncLocation not reported, AK · Good Standing | Location not reported, AK | Corporation | May 16, 2025 | Good Standing |
| Heartland, LLCLocation not reported, AK · Good Standing | Location not reported, AK | LLC | Oct 26, 2007 | Good Standing |
| CONCORDE GAMING CORPORATION, Delinquent November 1, 2005Location not reported, CO · Delinquent | Location not reported, CO | Corporation | Sep 1, 1976 | Delinquent |
| Black Hills Gas Resources, Inc.Location not reported, CO · Good Standing | Location not reported, CO | Corporation | May 31, 1978 | Good Standing |
| Black Hills Energy Services CompanyLocation not reported, CO · Good Standing | Location not reported, CO | Corporation | Aug 31, 1981 | Good Standing |
| DONOVAN VENTURES, INC., Dissolved August 10, 2019Location not reported, CO · Voluntarily Dissolved | Location not reported, CO | Corporation | Aug 3, 1982 | Voluntarily Dissolved |
| Rocky Mountain Natural Gas LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Jul 2, 1986 | Good Standing |
| EPIC FARMS,INC., Delinquent September 1, 2010Location not reported, CO · Delinquent | Location not reported, CO | Corporation | Mar 4, 1987 | Delinquent |
| BLACK HILLS EXPLORATION AND PRODUCTION, INC.Location not reported, CO · Good Standing | Location not reported, CO | Corporation | Jun 1, 1987 | Good Standing |
| Black Hills Gas Holdings Corp., Dissolved November 27, 2018Location not reported, CO · Voluntarily Dissolved | Location not reported, CO | Corporation | Jul 18, 1988 | Voluntarily Dissolved |
| PETE LIEN & SONS, INC.Location not reported, CO · Good Standing | Location not reported, CO | Corporation | Jun 8, 1989 | Good Standing |
| NORTH STAR CASINO LIMITED LIABILITY CO, Dissolved October 31, 2001Location not reported, CO · Voluntarily Dissolved | Location not reported, CO | LLC | Feb 11, 1992 | Voluntarily Dissolved |
| DAKOTA-COLORADO GAMING, INC., Colorado Authority Terminated September 1, 2000Location not reported, CO · Revoked | Location not reported, CO | Corporation | Mar 31, 1992 | Revoked |
| INTER-TRIBAL BISON, INC, Dissolved June 29, 2010Location not reported, CO · Voluntarily Dissolved | Location not reported, CO | Nonprofit | Sep 11, 1992 | Voluntarily Dissolved |
| SKY-VUE MOTELCORP, INC., Dissolved March 1, 2022Location not reported, CO · Voluntarily Dissolved | Location not reported, CO | Corporation | Dec 21, 1992 | Voluntarily Dissolved |
| ANTHEM HOLDINGS LLC, Dissolved June 2, 2025Location not reported, CO · Voluntarily Dissolved | Location not reported, CO | LLC | Sep 16, 1993 | Voluntarily Dissolved |
| AUTOMATIC FIRE SPRINKLERS, INC., Colorado Authority Relinquished May 4, 2026Location not reported, CO · Withdrawn | Location not reported, CO | Corporation | Sep 24, 1993 | Withdrawn |
| WASTE REDUCTION SYSTEMS, INC., Colorado Authority Terminated April 1, 2000Location not reported, CO · Revoked | Location not reported, CO | Corporation | Oct 28, 1993 | Revoked |
| THE EASTEN CORPORATIONLocation not reported, CO · Merged | Location not reported, CO | Corporation | Nov 10, 1994 | Merged |
| THE LAWGREN CORPORATION, Colorado Authority Terminated April 1, 1999Location not reported, CO · Revoked | Location not reported, CO | Corporation | Oct 30, 1996 | Revoked |
| CONCORDE CRIPPLE CREEK INC., Delinquent October 1, 2006Location not reported, CO · Delinquent | Location not reported, CO | Corporation | Feb 19, 1997 | Delinquent |
| COMPUTER EQUIPMENT WAREHOUSE OF SOUTH DAKOTA, INC., Dissolved March 27, 2001Location not reported, CO · Voluntarily Dissolved | Location not reported, CO | Corporation | Aug 25, 1997 | Voluntarily Dissolved |
| ALL METAL MANUFACTURING, INC., Colorado Authority Terminated June 1, 2002Location not reported, CO · Revoked | Location not reported, CO | Corporation | Dec 10, 1997 | Revoked |
| TRAZADO, LLC, Delinquent February 1, 2008Location not reported, CO · Delinquent | Location not reported, CO | LLC | Feb 9, 1999 | Delinquent |
| FIBER LOGIC, INCORPORATED, Colorado Authority Terminated November 1, 2001Location not reported, CO · Revoked | Location not reported, CO | Corporation | May 21, 1999 | Revoked |
| BANNER HOLDINGS LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Jun 20, 2000 | Good Standing |
| DFL CONSULTING, INC., Dissolved September 3, 2019Location not reported, CO · Voluntarily Dissolved | Location not reported, CO | Corporation | Jan 23, 2001 | Voluntarily Dissolved |
| GCC DACOTAH, INC.Location not reported, CO · Good Standing | Location not reported, CO | Corporation | Mar 16, 2001 | Good Standing |
| ANKARLO PROPERTIES, LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Jun 27, 2001 | Good Standing |
| COLDWELL BANKER LEWIS KIRKEY HALL REAL ESTATE, INC., Delinquent January 1, 2020Location not reported, CO · Delinquent | Location not reported, CO | Corporation | Aug 7, 2001 | Delinquent |
| DAKOTA MORTGAGE COMPANY, Colorado Authority Terminated April 17, 2003Location not reported, CO · Revoked | Location not reported, CO | Corporation | Oct 3, 2001 | Revoked |
| BLACK HILLS CORPORATIONLocation not reported, CO · Good Standing | Location not reported, CO | Corporation | Jun 3, 2002 | Good Standing |
| ALL METAL MANUFACTURING, INC., Delinquent April 1, 2007Location not reported, CO · Delinquent | Location not reported, CO | Corporation | Oct 7, 2002 | Delinquent |
| Black Hills Non-regulated Holdings, LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Oct 30, 2002 | Good Standing |
| ALBERTSON ENGINEERING INC., Colorado Authority Relinquished October 23, 2025Location not reported, CO · Withdrawn | Location not reported, CO | Corporation | Dec 19, 2002 | Withdrawn |
| RAPID FIRE PROTECTION, INC.Location not reported, CO · Good Standing | Location not reported, CO | Corporation | Apr 10, 2003 | Good Standing |
| DAAMANATION CORPORATION, Delinquent November 1, 2006Location not reported, CO · Delinquent | Location not reported, CO | Corporation | Sep 2, 2003 | Delinquent |
| ZTAI, INC., Dissolved June 28, 2023Location not reported, CO · Voluntarily Dissolved | Location not reported, CO | Corporation | Oct 20, 2003 | Voluntarily Dissolved |
| COCA-COLA BOTTLING COMPANY HIGH COUNTRYLocation not reported, CO · Good Standing | Location not reported, CO | Corporation | Jan 16, 2004 | Good Standing |
| MESSINGER COMPANY, LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Jan 16, 2004 | Good Standing |
| HORSE CREEK GP, LLC, Colorado Authority Terminated June 30, 2005Location not reported, CO · Revoked | Location not reported, CO | LLC | Jan 22, 2004 | Revoked |
| Banner Communities LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | Mar 31, 2005 | Good Standing |
| MOSEY, LLCLocation not reported, CO · Good Standing | Location not reported, CO | LLC | May 11, 2005 | Good Standing |
| Brink Constructors, Inc.Location not reported, CO · Good Standing | Location not reported, CO | Corporation | Jun 30, 2005 | Good Standing |
| Blue Ribbon Financial, Delinquent October 1, 2006Location not reported, CO · Delinquent | Location not reported, CO | LLC | Aug 15, 2005 | Delinquent |
| Two Stick Contracting, Inc., Colorado Authority Relinquished April 20, 2009Location not reported, CO · Withdrawn | Location not reported, CO | Corporation | Oct 20, 2005 | Withdrawn |