- United Brass Works Acquired By Bradford Equities Management
- United Brokerage Services International Acquired By World Insurance Associates
- United Building Materials Acquired By GMS
- United Business Mail Acquisitions
- United Business Solutions Acquired By Global Imaging Systems
- United Cabinet Company Acquired By Hyperion Capital Partners
- United Cabinet Holdings Acquisitions
- United Calibration and United Testing Systems Acquired By Industrial Physics
- United Capital Title Insurance Acquired By Fidelity National Financial
- United Captial Fiancial Partners Acquisitions
- United Care B.V. Acquired By Direct Healthcare Group
- United Carlton Office Systems Acquired By Agilico
- United Casualty & Surety Insurance Acquired By General Indemnity Group
- United Check Control Acquired By International Check Services
- United Chocolate Acquisitions
- United Coatings Manufacturing Acquired By Quest Specialty Chemicals
- United Coffee Acquired By UCC Holdings
- United Cogen Fuels Acquisitions
- United Combat League Acquired By B2Digital
- United Commerce Bancorp Acquired By German American Bancorp
- United Commercial Realty Acquired By CBRE Group
- United Communications Acquisitions
- United Communications Group Acquisitions
- United Communications Acquired By iomart Group
- United Community Banks Acquisitions
- United Community Financial Acquisitions
- United Community Management Acquired By RealManage
- United Components Acquisitions
- United Concerts Acquired By Live Nation Entertainment
- United Construction Products Acquired By GMS
- United Container Machinery Acquired By Barry-Wehmiller Companies
- United Copper Industries Acquired By Southwire Co
- United Dairy Power Acquisitions
- United Dairy Power - Caboolture Cheese Brand Acquired By Murray Goulburn Co-Operative
- United Dairy Acquisitions
- United Data Technologies Acquisitions
- United Dealer Services Acquired By Arthur J. Gallagher
- United Defense Industries Acquisitions
- United Dental Care Acquired By Protective Life
- United Dental Partners Acquired By Calera Capital
