- United Robotics Group Acquisitions
- United Roosevelt Savings Bank Acquisitions
- United Rotary Brush Acquisitions
- United Rotorcraft Solutions Acquired By Air Methods
- United Safety & Survivability Acquisitions
- United Scale and Engineering Acquired By Transcat
- United Sciences Testing Acquired By TRC Companies
- United Seating and Mobility Acquisitions
- United Security Bank Sparta Acquired By Ameris Bancorp.
- United Security Insurance Acquired By Missouri Employers Mutual Insurance
- United Security Services Acquired By Summit Companies
- United Service Technologies Acquired By Commercial Foodservice Repair
- United Services Administrators Acquired By Engle Martin & Associates
- United Services Automobile Association Acquisitions
- United Services Automobile Association - Investment Management Company Acquired By The Charles Schwab
- United Shield International Acquired By Point Blank Enterprises
- United Shortline Insurance Acquired By HUB International
- United Silicon Carbide Acquired By Qorvo
- United Site Services Acquisitions
- United Skin Specialists Acquisitions
- United Sleep Products Acquired By Park Place
- United Solution Acquired By Safety NetAccess
- United Solutions Group Acquisitions
- United Solutions Group - Sage 300 ERP & Sage CRM Practice Acquired By Acumen Information Systems
- United Spinal Association Acquisitions
- United Stars Acquisitions
- United States Alliance Fire Protection Acquired By APi Group
- United States Appraisals Acquired By Stewart Information Services
- United States Bullet Proofing Acquired By Quikserv Holdings
- United States Cellular Acquisitions
- United States Container Acquired By Berlin Packaging
- United States Fire Insurance Acquisitions
- United States Fire Insurance Acquisitions
- United States Infrastructure Acquisitions
- United States Medical Supply Acquisitions
- United States Pipe and Foundry Acquisitions
- United States Shoe Acquired By Luxottica Group
- United States Sports Insurance Acquired By Randall & Quilter Investment Holdings
- United States Steel Acquisitions
- United States Stove Acquisitions
