| UNITED FINANCIAL SYSTEMS, INC. | — | U016674 | 2004-01-22 | Revoked | BOCA RATON |
| UNITED HEALTH SOLUTIONS, LLC | — | U019590 | 2012-11-02 | Revoked | FORT LAUDERDALE |
| UNITED HOTEL OF WISCONSIN, INC. | — | 1U02453 | 1977-03-28 | Dissolved | DES PLAINES |
| UNITED INDEPENDENT CATHOLIC CHURCH, INC. | — | U018656 | 2010-02-16 | Revoked | SPRINGFIELD |
| UNITED INDUSTRIAL SYNDICATE, INC. | — | 2U00400 | 1968-01-16 | Withdrawn | |
| UNITED INFORMATION SERVICES, INC. | — | 2U00624 | 1983-01-03 | Withdrawn | MINNEAPOLIS |
| UNITED LEASING SERVICES, INC. | — | 2U00480 | 1973-10-08 | Revoked | |
| UNITED MANUFACTURED FINANCIAL INCORPORATED | — | U017195 | 2005-08-24 | Revoked | TAMPA |
| UNITED MERCHANTS AND MANUFACTURERS, INC. | — | U014082 | 1991-12-16 | Revoked | TEANECK |
| UNITED MORTGAGE CORPORATION | — | U017613 | 2006-11-17 | Revoked | CAPE CORAL |
| UNITED MORTGAGE LENDERS, INC. | — | U016776 | 2004-05-11 | Revoked | BOCA RATON |
| UNITED PLANNING GROUP CORPORATION | — | U018594 | 2009-12-18 | Revoked | ST. PETERSBURG |
| UNITED PLASTICS INDUSTRIES, INC. | — | 2U00618 | 1982-09-02 | Revoked | |
| UNITED PLAYERS SOCCER ACADEMY, LLC | — | U021533 | 2017-11-23 | Dissolved | |
| UNITED PRESS INTERNATIONAL, INC. | — | 2U00524 | 1976-05-18 | Revoked | WILMINGTON |
| UNITED PRINT COMMUNICATIONS, INC. | — | 1S22372 | 1980-12-11 | Dissolved | GREEN BAY |
| UNITED PROCESS SERVICE CO., INC. | — | 1U02922 | 1984-03-05 | Dissolved | GREENFIELD |
| UNITED RECYCLING & DISPOSAL LLC | — | U024635 | 2023-07-06 | Inactive | GREEN BAY |
| UNITED REGIONS VAN LINES LLC | — | L037343 | 2003-12-26 | Active | WAUKESHA |
| UNITED RENT-ALL, INC. | — | 2U00506 | 1975-04-15 | Revoked | |
| UNITED RENTALS AERIAL EQUIPMENT, INC. | — | U015567 | 1999-08-31 | Revoked | GREENWICH |
| UNITED RENTALS OF MICHIGAN, INC. | — | U015531 | 1999-06-25 | Revoked | GREENWICH |
| UNITED RESOURCES INSURANCE SERVICES, INC. | — | U013408 | 1987-07-29 | Revoked | SANTA ANA |
| UNITED RETAIL INCORPORATED | — | U014364 | 1993-09-09 | Revoked | ROCHELLE PARK |
| UNITED SAFETY & COMPLIANCE TRAINING LLC | — | U019801 | 2013-06-03 | Dissolved | BALTIMORE |
| UNITED SCHOOL SERVICES OF AMERICA, INC. | — | U013092 | 1985-07-18 | Revoked | WILMINGTON |
| UNITED SCIENCES OF AMERICA, INC. | — | U013169 | 1986-02-05 | Revoked | WILMINGTON |
| UNITED STAFFING SOLUTIONS, INC. | — | U021797 | 2018-06-11 | Revoked | TORRANCE |
| UNITED STATES AEROBATIC FOUNDATION, INC. | — | 6W15825 | 1979-04-16 | Dissolved | OSHKOSH |
| UNITED STATES CONSOLIDATORS, INC. | — | 2U00591 | 1981-06-16 | Revoked | CINCINNATI |
| UNITED STATES LEATHER, INC. | — | U013868 | 1990-07-19 | Dissolved | |
| UNITED STATES MOTORS CORP. | — | 2U00595 | 1981-08-25 | Revoked | |
| UNITED STATES TALENT COMPANY, LLC | — | U016409 | 2003-02-03 | Revoked | CARSON CITY |
| UNITED STATES TELECOMMUNICATIONS, INC. | — | U015300 | 1998-06-18 | Revoked | CLEARWATER |
| UNITED STRUCTURAL SYSTEMS OF CHICAGO, INC. | — | U014759 | 1996-01-16 | Revoked | BARRINGTON |
| UNITED TIRE & RUBBER CO. LIMITED | — | 2U00606 | 1982-03-23 | Revoked | REXDALE |
| UNITED TOWER SOLUTIONS, LLC | — | U018930 | 2010-12-08 | Revoked | CENTRAL CITY |
| UNITED TRAVEL BRANDS LLC | — | U021175 | 2017-01-30 | Revoked | LAS VEGAS |
| UNITED TRAVEL BRANDS LLC | — | U020608 | 2015-07-27 | Revoked | FORT COLLINS |
| UNITED VACCINES INTERNATIONAL, INC. | — | U020547 | 2015-06-03 | Dissolved | VERONA |
| UNITED VENTURES FOREST PRODUCTS OF WISCONSIN, INC. | — | 1U02411 | 1976-07-16 | Dissolved | HARVEY |
| UNITIMED LLC | — | U024205 | 2022-10-31 | Revoked | OMAHA |
| UNITUS HOME SOLUTIONS LLC | — | U023576 | 2021-10-22 | Dissolved | |
| UNITY MEDICAL TRANSPORTATION LLC | — | U026225 | 2026-02-06 | Active | OSHKOSH |
| UNITY TELECOM, LLC | — | D028562 | 1999-01-19 | Revoked | CARROLLTON |
| UNIVERSAL BLASTCO (FICT NAME) UNIVERSAL, INC. (CORP NAME) | — | U019470 | 2012-06-28 | Revoked | NEW MARTINSVILLE |
| UNIVERSAL BRIXIUS, INC. | — | 1B08728 | 1962-01-25 | Dissolved | MILWAUKEE |
| UNIVERSAL CONTRACTING GROUP, INC. | — | U015456 | 1999-03-17 | Dissolved | FONTANA |
| UNIVERSAL DEALER SERVICES, INC. | — | 2U00649 | 1984-02-06 | Revoked | EL TORO |
| UNIVERSAL DISTRIBUTORS CO. OF INDIANAPOLIS, INC. | — | U013326 | 1987-03-05 | Revoked | CARMEL |