| APOSTOLIC CHURCH OF JESUS, Delinquent April 1, 2021San Luis, CO · Delinquent | San Luis, CO | Nonprofit | May 6, 1939 | Delinquent |
| The Acequia de San PedroSan Luis, CO · Good Standing | San Luis, CO | Nonprofit | Jul 28, 1953 | Good Standing |
| METALS EXPLORATION COMPANY, Dissolved May 1, 2002San Luis, CO · Administratively Dissolved | San Luis, CO | Corporation | Jul 22, 1965 | Administratively Dissolved |
| GARCIA DOMESTIC WATER USERS ASSOCIATION INC.San Luis, CO · Good Standing | San Luis, CO | Nonprofit | Sep 23, 1965 | Good Standing |
| SAN FRANCISCO DITCH COMPANYSan Luis, CO · Good Standing | San Luis, CO | Nonprofit | Jul 23, 1969 | Good Standing |
| GEORGE G. ROMERO & SONS, INC., Dissolved June 30, 2023San Luis, CO · Voluntarily Dissolved | San Luis, CO | Corporation | Feb 16, 1971 | Voluntarily Dissolved |
| COSTILLA COUNTY SENIOR CITIZENS CLUBSan Luis, CO · Good Standing | San Luis, CO | Nonprofit | Jul 2, 1973 | Good Standing |
| SAN LUIS VEGA, INC.San Luis, CO · Good Standing | San Luis, CO | Nonprofit | Sep 25, 1978 | Good Standing |
| LAND RIGHTS COUNCIL, INC., Delinquent April 1, 2025San Luis, CO · Delinquent | San Luis, CO | Nonprofit | Jan 17, 1979 | Delinquent |
| CORPUS A. GALLEGOS RANCHES, LLLPSan Luis, CO · Good Standing | San Luis, CO | Other | Mar 1, 1982 | Good Standing |
| WILD HORSE MESA BIBLE CHURCH, INC., Dissolved April 1, 2019San Luis, CO · Voluntarily Dissolved | San Luis, CO | Nonprofit | Aug 24, 1984 | Voluntarily Dissolved |
| SAN LUIS BABE RUTH BASEBALL ASSOCIATION, INC., Dissolved December 1, 2001San Luis, CO · Administratively Dissolved | San Luis, CO | Nonprofit | Feb 4, 1985 | Administratively Dissolved |
| COSTILLA COUNTY ECONOMIC DEVELOPMENT COUNCIL, INC.San Luis, CO · Good Standing | San Luis, CO | Nonprofit | Feb 3, 1987 | Good Standing |
| PADILLA'S LIQUOR & SERVICE, INC., Dissolved July 27, 2007San Luis, CO · Voluntarily Dissolved | San Luis, CO | Corporation | Feb 23, 1989 | Voluntarily Dissolved |
| MT. BLANCA LAND AND CATTLE COMPANY, Colorado Authority Terminated April 12, 1999San Luis, CO · Withdrawn | San Luis, CO | Corporation | Mar 28, 1990 | Withdrawn |
| VICTOR CRAIG DEVEREAUX, P.C., Dissolved October 31, 2004San Luis, CO · Administratively Dissolved | San Luis, CO | Corporation | May 14, 1991 | Administratively Dissolved |
| COSTILLA COUNTY CONSERVANCY DISTRICT, Dissolved November 5, 2020San Luis, CO · Voluntarily Dissolved | San Luis, CO | Nonprofit | Sep 17, 1993 | Voluntarily Dissolved |
| RIO CULEBRA GROWERS EDUCATIONAL CORPORATION, Delinquent January 1, 2020San Luis, CO · Delinquent | San Luis, CO | Nonprofit | Aug 16, 1994 | Delinquent |
| LA SIERRA FOUNDATIONSan Luis, CO · Good Standing | San Luis, CO | Nonprofit | Aug 30, 1994 | Good Standing |
| CASTLE PINES PROPERTIES, INC., Delinquent November 1, 2006San Luis, CO · Delinquent | San Luis, CO | Corporation | Dec 12, 1996 | Delinquent |
| SHALOM RANCH LTD. LIABILITY CO. +, Colorado Authority Terminated September 2, 2004San Luis, CO · Revoked | San Luis, CO | LLC | Feb 26, 1997 | Revoked |
| THE MESITA TOWNSHIP WATER USERS ASSOCIATION, Delinquent December 1, 2016Mesita, CO · Delinquent | Mesita, CO | Nonprofit | May 1, 1997 | Delinquent |
| COLORADO ACEQUIA ASSOCIATION, Delinquent March 1, 2009San Luis, CO · Delinquent | San Luis, CO | Nonprofit | Nov 18, 1998 | Delinquent |
| RAINBOW'S END,LLC, Delinquent December 1, 2019San Luis, CO · Delinquent | San Luis, CO | LLC | Dec 14, 1998 | Delinquent |
| AMISTAD OF SAN LUIS CORPORATIONSan Luis, CO · Noncompliant | San Luis, CO | Corporation | Apr 15, 1999 | Noncompliant |
| SAN LUIS INN, INC., Delinquent December 1, 2021San Luis, CO · Delinquent | San Luis, CO | Corporation | May 18, 1999 | Delinquent |
| PAT'S TRANSMISSION, INC.San Luis, CO · Good Standing | San Luis, CO | Corporation | Dec 7, 1999 | Good Standing |
| BRIDGES OF HEALTH, INC.San Luis, CO · Good Standing | San Luis, CO | Nonprofit | Feb 24, 2000 | Good Standing |
| COSTILLA COUNTY FREE PRESS NEWSPAPER, INC., Dissolved January 20, 2021San Luis, CO · Voluntarily Dissolved | San Luis, CO | Corporation | May 16, 2000 | Voluntarily Dissolved |
| Melby Ranch Properties, LLC, Delinquent December 1, 2023San Luis, CO · Delinquent | San Luis, CO | LLC | Jul 5, 2000 | Delinquent |
| WEYLEN'S FUNERAL HOME LLC, Dissolved July 26, 2015San Pablo, CO · Voluntarily Dissolved | San Pablo, CO | LLC | Apr 26, 2001 | Voluntarily Dissolved |
| HOSPICE MEDICAL SUPPLY, Delinquent May 1, 2017Mesita, CO · Delinquent | Mesita, CO | Nonprofit | Nov 5, 2001 | Delinquent |
| Acequia del CerroSan Luis, CO · Good Standing | San Luis, CO | Nonprofit | Dec 5, 2001 | Good Standing |
| SWEDES SYSTEMS, LLCSan Luis, CO · Good Standing | San Luis, CO | LLC | Dec 6, 2001 | Good Standing |
| Wild Horse Mesa Community Service CooperativeSan Luis, CO · Good Standing | San Luis, CO | Nonprofit | Mar 18, 2002 | Good Standing |
| CULEBRA COMMUNITY RECREATION CENTER, INC., Delinquent January 1, 2009San Luis, CO · Delinquent | San Luis, CO | Nonprofit | May 7, 2002 | Delinquent |
| COSTILLA COUNTY CHAMBER OF COMMERCE, INC., Dissolved January 31, 2005San Luis, CO · Administratively Dissolved | San Luis, CO | Corporation | Aug 12, 2002 | Administratively Dissolved |
| COSTILLA COUNTY HEALTH ASSOCIATION, INC., Dissolved September 8, 2023San Pablo, CO · Voluntarily Dissolved | San Pablo, CO | Nonprofit | Aug 21, 2002 | Voluntarily Dissolved |
| MARIACHI SAN LUIS, INC.San Luis, CO · Good Standing | San Luis, CO | Nonprofit | Mar 6, 2003 | Good Standing |
| RIO CULEBRA AGRICULTURAL COOPERATIVE, Delinquent August 1, 2020San Luis, CO · Delinquent | San Luis, CO | Other | Mar 7, 2003 | Delinquent |
| ANIMAL AID SOCIETY, INC., Dissolved September 23, 2004Mesita, CO · Administratively Dissolved | Mesita, CO | Nonprofit | Mar 21, 2003 | Administratively Dissolved |
| SPIRIT OF THE MESA NON DENOMINATIONAL CHURCH AND RETREAT, Delinquent July 1, 2005San Luis, CO · Delinquent | San Luis, CO | Nonprofit | May 16, 2003 | Delinquent |
| C BAR W RANCH, LLCSan Luis, CO · Good Standing | San Luis, CO | LLC | Aug 13, 2003 | Good Standing |
| KOKOMO'S TAT SHAK, LLC, Dissolved April 30, 2005San Luis, CO · Administratively Dissolved | San Luis, CO | LLC | Nov 5, 2003 | Administratively Dissolved |
| SAN PEDRO MESA NEIGHBORHOOD WATCH INCORPORATED, Delinquent May 1, 2008San Luis, CO · Delinquent | San Luis, CO | Nonprofit | Nov 10, 2003 | Delinquent |
| PEPITA'S LLCSan Luis, CO · Good Standing | San Luis, CO | LLC | Dec 1, 2003 | Good Standing |
| Wild Horse Mesa volunteer fire department, Delinquent February 1, 2010San Luis, CO · Delinquent | San Luis, CO | Nonprofit | Jan 30, 2004 | Delinquent |
| TESSRIAAM LLC, Dissolved February 1, 2024San Luis, CO · Voluntarily Dissolved | San Luis, CO | LLC | Feb 18, 2004 | Voluntarily Dissolved |
| Wild Horse Fire Services, Inc., Delinquent September 1, 2005San Luis, CO · Delinquent | San Luis, CO | LLC | Jul 27, 2004 | Delinquent |
| San Luis Musuem Cultural Center, Delinquent September 1, 2007San Luis, CO · Delinquent | San Luis, CO | Other | Aug 6, 2004 | Delinquent |