| JET BLACK, L.L.C.Location not reported, AK · Good Standing | Location not reported, AK | LLC | Nov 19, 2001 | Good Standing |
| COTTONWOOD HOLLOW HOMEOWNERS' ASSOCIATIONNew Castle, CO · Good Standing | New Castle, CO | Nonprofit | Oct 3, 1984 | Good Standing |
| THE FIRST BAPTIST CHURCH, GLENWOOD SPRINGS, COLORADONew Castle, CO · Good Standing | New Castle, CO | Nonprofit | Jun 13, 1947 | Good Standing |
| GRAND RIVER BAPTIST CHURCH, Dissolved July 22, 2004New Castle, CO · Voluntarily Dissolved | New Castle, CO | Nonprofit | Apr 20, 1972 | Voluntarily Dissolved |
| TRUSFAB, INC.New Castle, CO · Good Standing | New Castle, CO | Corporation | Jun 6, 1973 | Good Standing |
| ELK CREEK HOMEOWNERS ASSOCIATIONNew Castle, CO · Good Standing | New Castle, CO | Nonprofit | Dec 6, 1973 | Good Standing |
| WESTERN ENTERPRISES, INC., Delinquent June 1, 2012New Castle, CO · Delinquent | New Castle, CO | Corporation | Dec 12, 1974 | Delinquent |
| WILLIAMS CANAL COMPANYNew Castle, CO · Good Standing | New Castle, CO | Nonprofit | May 15, 1975 | Good Standing |
| VIGIL & LOPEZ, INC., Dissolved November 5, 2012New Castle, CO · Voluntarily Dissolved | New Castle, CO | Corporation | Nov 20, 1975 | Voluntarily Dissolved |
| DANDYLION PRESCHOOL, Dissolved June 1, 1995New Castle, CO · Administratively Dissolved | New Castle, CO | Nonprofit | Aug 31, 1976 | Administratively Dissolved |
| SENOR ELECTRIC, INC., Delinquent June 1, 2008New Castle, CO · Delinquent | New Castle, CO | Corporation | Jun 15, 1977 | Delinquent |
| FIRST BAPTIST CHURCH OF NEW CASTLENew Castle, CO · Good Standing | New Castle, CO | Nonprofit | Apr 27, 1978 | Good Standing |
| DESIGN GLASS, INC., Delinquent April 1, 2007New Castle, CO · Delinquent | New Castle, CO | Corporation | Mar 23, 1979 | Delinquent |
| THE NEW CASTLE CONGREGATIONAL CHURCH, U.C.C.New Castle, CO · Merged | New Castle, CO | Nonprofit | Mar 3, 1980 | Merged |
| WARD REYNOLDS DITCH COMPANYNew Castle, CO · Good Standing | New Castle, CO | Nonprofit | Aug 14, 1980 | Good Standing |
| COCOMO, INC., Dissolved February 23, 2024New Castle, CO · Voluntarily Dissolved | New Castle, CO | Corporation | Jan 16, 1981 | Voluntarily Dissolved |
| ROSEMAN DITCH COMPANY, Dissolved January 1, 1989New Castle, CO · Administratively Dissolved | New Castle, CO | Other | Oct 19, 1981 | Administratively Dissolved |
| ELK VALLEY ESTATES HOMEOWNERS ASSOCIATION, INC.New Castle, CO · Good Standing | New Castle, CO | Nonprofit | Jan 4, 1982 | Good Standing |
| FLAG RESOURCES, INC.New Castle, CO · Good Standing | New Castle, CO | Corporation | Mar 16, 1982 | Good Standing |
| PARKSIDE CONDOMINIUM ASSOCIATION AT KNOLLRIDGE, INC.New Castle, CO · Good Standing | New Castle, CO | Nonprofit | Mar 22, 1982 | Good Standing |
| NEW CASTLE HISTORICAL SOCIETYNew Castle, CO · Good Standing | New Castle, CO | Nonprofit | Jul 22, 1982 | Good Standing |
| MASTER PETROLEUM CO., INC., Delinquent March 1, 2024New Castle, CO · Delinquent | New Castle, CO | Corporation | Nov 17, 1982 | Delinquent |
| ANIMALS TWO BY TWO EDUCATIONAL FOUNDATIONNew Castle, CO · Good Standing | New Castle, CO | Nonprofit | Sep 12, 1983 | Good Standing |
| SHADOW RIDGE CLUSTER HOMES HOMEOWNERS ASSOCIATIONNew Castle, CO · Good Standing | New Castle, CO | Nonprofit | Sep 23, 1983 | Good Standing |
| OLD NO. 19 ASSOCIATION, INC.New Castle, CO · Good Standing | New Castle, CO | Corporation | Dec 16, 1983 | Good Standing |
| LINDA SCHULTZ M.D.P.C., Delinquent June 1, 2009New Castle, CO · Delinquent | New Castle, CO | Corporation | Dec 21, 1983 | Delinquent |
| NEW CASTLE COMMUNITY CENTER, Dissolved September 30, 2004New Castle, CO · Administratively Dissolved | New Castle, CO | Nonprofit | Apr 13, 1984 | Administratively Dissolved |
| STROUSE MASONRY, INC.New Castle, CO · Good Standing | New Castle, CO | Corporation | Aug 24, 1984 | Good Standing |
| GARNER AND ASSOCIATES, INC., Delinquent October 1, 2022New Castle, CO · Delinquent | New Castle, CO | Corporation | May 3, 1985 | Delinquent |
| SHOREHAM, INC., Dissolved April 30, 2005New Castle, CO · Administratively Dissolved | New Castle, CO | Corporation | Nov 13, 1985 | Administratively Dissolved |
| Grace Life ChurchNew Castle, CO · Good Standing | New Castle, CO | Nonprofit | Nov 29, 1985 | Good Standing |
| NEW CASTLE CHAMBER OF COMMERCENew Castle, CO · Good Standing | New Castle, CO | Nonprofit | Feb 13, 1986 | Good Standing |
| FRIENDS OF THE GARFIELD COUNTY PUBLIC LIBRARY, INC, Dissolved January 12, 2010New Castle, CO · Voluntarily Dissolved | New Castle, CO | Nonprofit | Aug 25, 1986 | Voluntarily Dissolved |
| HARRY HUNT SNOW REMOVAL, INC., Dissolved February 28, 2005Vail, CO · Administratively Dissolved | Vail, CO | Corporation | Sep 29, 1986 | Administratively Dissolved |
| GILCO/WESTERN DISTRIBUTORS, INC., Delinquent December 1, 2015New Castle, CO · Delinquent | New Castle, CO | Corporation | Dec 11, 1986 | Delinquent |
| GOLDEN PAWN INVESTMENTS, INC. #ONENew Castle, CO · Good Standing | New Castle, CO | Corporation | Mar 4, 1987 | Good Standing |
| BROWN FARMS DAIRY, INC.New Castle, CO · Delinquent | New Castle, CO | Corporation | Mar 23, 1987 | Delinquent |
| NEW CASTLE AMBULANCE SERVICE, INC., Dissolved November 6, 2003New Castle, CO · Voluntarily Dissolved | New Castle, CO | Nonprofit | May 13, 1987 | Voluntarily Dissolved |
| FRANK BISHOP CONSTRUCTION, INC., Dissolved November 26, 2003New Castle, CO · Voluntarily Dissolved | New Castle, CO | Corporation | Jun 17, 1988 | Voluntarily Dissolved |
| AQUA TEC SYSTEMS, INC.New Castle, CO · Good Standing | New Castle, CO | Corporation | Jan 23, 1989 | Good Standing |
| MAYAN TRADING COMPANYNew Castle, CO · Good Standing | New Castle, CO | Corporation | Jan 30, 1989 | Good Standing |
| PINE MOUNTAIN MORTGAGE, INC., Dissolved February 27, 2021New Castle, CO · Voluntarily Dissolved | New Castle, CO | Corporation | Feb 23, 1989 | Voluntarily Dissolved |
| PORTER SEED AND CATTLE, INC.New Castle, CO · Good Standing | New Castle, CO | Corporation | Apr 12, 1989 | Good Standing |
| RICHARD DAVIS CONSTRUCTION COMPANY, Delinquent October 1, 2011New Castle, CO · Delinquent | New Castle, CO | Corporation | Apr 17, 1989 | Delinquent |
| RIVERBEND HOMEOWNERS ASSOCIATION, Dissolved April 1, 2000New Castle, CO · Administratively Dissolved | New Castle, CO | Nonprofit | Jun 1, 1989 | Administratively Dissolved |
| TNP, Inc., Dissolved March 27, 2019New Castle, CO · Voluntarily Dissolved | New Castle, CO | Corporation | Jul 17, 1989 | Voluntarily Dissolved |
| GARDINEER BROTHERS DRYWALL, INC., Delinquent February 1, 2010New Castle, CO · Delinquent | New Castle, CO | Corporation | Aug 3, 1989 | Delinquent |
| THE BOTTOM LINE, INC.New Castle, CO · Good Standing | New Castle, CO | Corporation | Oct 13, 1989 | Good Standing |
| RICHARD'S ELECTRIC AND CONTRACTING, INC., Delinquent May 1, 2008New Castle, CO · Delinquent | New Castle, CO | Corporation | Nov 17, 1989 | Delinquent |
| SPECIALIZED BUSINESS SERVICE INC., Dissolved December 9, 2022New Castle, CO · Voluntarily Dissolved | New Castle, CO | Corporation | Dec 11, 1989 | Voluntarily Dissolved |