| FFH-CR, LLCJacksonville, FL · Active | Jacksonville, FL | LLC | Oct 24, 2023 | Active |
| RDG SCHUTTE WILSCAM BIRGE INC.New York, NY · Active | New York, NY | Corporation | Jun 23, 2005 | Active |
| ADESTA COMMUNICATIONS, INC.New York, NY · Active | New York, NY | Corporation | Jul 8, 1998 | Active |
| MFS TRANSTECH, INC.New York, NY · Active | New York, NY | Corporation | Aug 20, 1993 | Active |
| KIEWIT ENERGY GROUP INC.Location not reported, AK · Good Standing | Location not reported, AK | Corporation | Feb 20, 2014 | Good Standing |
| RIECP, LLCLocation not reported, AK · Good Standing | Location not reported, AK | LLC | Feb 13, 2015 | Good Standing |
| Sharp Medical Staffing, LLCLocation not reported, AK · Good Standing | Location not reported, AK | LLC | Jul 28, 2015 | Good Standing |
| BHHC SPECIALTY RISK, LLCLocation not reported, AK · Good Standing | Location not reported, AK | LLC | Feb 5, 2018 | Good Standing |
| Kiewit Foundations Co.Location not reported, AK · Good Standing | Location not reported, AK | Corporation | Feb 12, 2018 | Good Standing |
| Kiewit Mining Group Inc.Location not reported, AK · Good Standing | Location not reported, AK | Corporation | May 11, 2021 | Good Standing |
| Milepost Insurance Agency LLCLocation not reported, AK · Good Standing | Location not reported, AK | LLC | Mar 10, 2022 | Good Standing |
| Cedar Tree Native Law LLPLocation not reported, AK · Good Standing | Location not reported, AK | Partnership | May 14, 2024 | Good Standing |
| CMF Leasing Co.Location not reported, AK · Good Standing | Location not reported, AK | Corporation | Jan 19, 2007 | Good Standing |
| Midwest Agencies, Inc.Location not reported, AK · Good Standing | Location not reported, AK | Corporation | Jun 14, 2007 | Good Standing |
| TIC - THE INDUSTRIAL COMPANYLocation not reported, AK · Good Standing | Location not reported, AK | Corporation | Oct 20, 1982 | Good Standing |
| Kiewit Infrastructure Co.Location not reported, AK · Good Standing | Location not reported, AK | Corporation | Apr 29, 1983 | Good Standing |
| Kiewit Power Constructors Co.Location not reported, AK · Good Standing | Location not reported, AK | Corporation | May 9, 1983 | Good Standing |
| Kiewit Infrastructure West Co.Location not reported, AK · Good Standing | Location not reported, AK | Corporation | Oct 21, 1985 | Good Standing |
| Kiewit CorporationLocation not reported, AK · Good Standing | Location not reported, AK | Corporation | Feb 28, 1992 | Good Standing |
| Western Summit Constructors, Inc.Location not reported, AK · Good Standing | Location not reported, AK | Corporation | Aug 12, 1997 | Good Standing |
| RINGWALT & LIESCHE CO.Location not reported, AK · Good Standing | Location not reported, AK | Corporation | Dec 5, 2000 | Good Standing |
| GENERAL CONSTRUCTION COMPANYLocation not reported, AK · Good Standing | Location not reported, AK | Corporation | Aug 14, 2002 | Good Standing |
| MASS. ELECTRIC CONSTRUCTION CO.Location not reported, AK · Good Standing | Location not reported, AK | Corporation | Nov 18, 2002 | Good Standing |
| Kiewit Engineering Group Inc.Location not reported, AK · Good Standing | Location not reported, AK | Corporation | May 4, 2004 | Good Standing |
| WOODMEN INSURANCE AGENCY, INC.Location not reported, AK · Good Standing | Location not reported, AK | Corporation | Oct 1, 2004 | Good Standing |
| Kutak Rock LLPLocation not reported, AK · Good Standing | Location not reported, AK | Partnership | Mar 21, 2005 | Good Standing |
| Kiewit Building Group Inc.Location not reported, AK · Good Standing | Location not reported, AK | Corporation | Aug 17, 2005 | Good Standing |
| Aerobics Plus, Inc., Colorado Authority Relinquished March 24, 1985Location not reported, CO · Revoked | Location not reported, CO | Corporation | Oct 4, 1984 | Revoked |
| NATIONAL INDEMNITY COMPANYLocation not reported, CO · Good Standing | Location not reported, CO | Corporation | Sep 16, 1947 | Good Standing |
| Berkshire Hathaway Specialty Insurance CompanyLocation not reported, CO · Good Standing | Location not reported, CO | Corporation | Mar 4, 1958 | Good Standing |
| CONAGRA GROCERY PRODUCTS COMPANYLocation not reported, CO · Merged | Location not reported, CO | Corporation | Jun 27, 1966 | Merged |
| Berkshire Hathaway Homestate Insurance CompanyLocation not reported, CO · Good Standing | Location not reported, CO | Corporation | Nov 10, 1972 | Good Standing |
| BERKSHIRE HATHAWAY DIRECT INSURANCE COMPANYLocation not reported, CO · Good Standing | Location not reported, CO | Corporation | May 30, 1975 | Good Standing |
| BYRON REED COMPANY, INC., Colorado Authority Terminated April 12, 2004Location not reported, CO · Withdrawn | Location not reported, CO | Corporation | Mar 28, 1979 | Withdrawn |
| MONFORT ENERGY RESOURCES, INC.Location not reported, CO · Merged | Location not reported, CO | Corporation | Nov 29, 1973 | Merged |
| UNITED AGRI PRODUCTS FINANCIAL SERVICES, INC.Location not reported, CO · Merged | Location not reported, CO | Corporation | Apr 15, 1974 | Merged |
| CONTINENTAL DIVIDE INSURANCE COMPANYLocation not reported, CO · Good Standing | Location not reported, CO | Corporation | Sep 7, 1978 | Good Standing |
| CONAGRA FOODS REFRIGERATED FOODS CO., INC., Colorado Authority Terminated December 10, 2004Location not reported, CO · Withdrawn | Location not reported, CO | Corporation | Oct 20, 1980 | Withdrawn |
| Kiewit Infrastructure Co.Location not reported, CO · Good Standing | Location not reported, CO | Corporation | May 28, 1982 | Good Standing |
| TIC - THE INDUSTRIAL COMPANYLocation not reported, CO · Good Standing | Location not reported, CO | Corporation | Oct 14, 1982 | Good Standing |
| REDWOOD FIRE AND CASUALTY INSURANCE COMPANYLocation not reported, CO · Good Standing | Location not reported, CO | Corporation | Dec 1, 1983 | Good Standing |
| ODOM'S TENNESSEE PRIDE SAUSAGE, INC., Colorado Authority Relinquished October 9, 2012Location not reported, CO · Withdrawn | Location not reported, CO | Corporation | Mar 11, 1987 | Withdrawn |
| LONGMONT TRANSPORTATION COMPANY, INC.Location not reported, CO · Merged | Location not reported, CO | Corporation | Oct 20, 1987 | Merged |
| COLUMBIA INSURANCE COMPANYLocation not reported, CO · Good Standing | Location not reported, CO | Corporation | Feb 10, 1981 | Good Standing |
| Kiewit CorporationLocation not reported, CO · Good Standing | Location not reported, CO | Corporation | Jan 30, 1992 | Good Standing |
| WESTERN SUMMIT CONSTRUCTORS, INC.Location not reported, CO · Good Standing | Location not reported, CO | Corporation | Dec 9, 1992 | Good Standing |
| Noddle Development CompanyLocation not reported, CO · Good Standing | Location not reported, CO | Corporation | Mar 22, 1993 | Good Standing |
| TIC INTERNATIONAL, INC.Location not reported, CO · Good Standing | Location not reported, CO | Corporation | Apr 2, 1993 | Good Standing |
| Bremner Food Group, Inc., Colorado Authority Relinquished April 21, 2015Location not reported, CO · Withdrawn | Location not reported, CO | Corporation | Apr 1, 1994 | Withdrawn |
| COUNTRY GENERAL, INC., Colorado Authority Terminated March 1, 1999Location not reported, CO · Revoked | Location not reported, CO | Corporation | Sep 13, 1994 | Revoked |