- United Derm Partners Acquisitions
- United Development Systems Acquired By Brown & Brown
- United Digestive Acquired By Kohlberg & Company
- United Distribution Group Acquisitions
- United Dominion Industries Acquisitions
- United Drug Supply Chain Acquired By McKesson
- United Drywall Acquired By Foundation Building Materials
- United Dutch Breweries B.V. Acquired By GIMV
- United Energy Trading Acquisitions
- United Engineers & Constructors Acquired By CriticalPoint Capital
- United Environmental Holdings Acquired By York1
- United Europhil S.A. Acquired By Global Payments
- United Excel Design PC Acquired By KAI Design & Build
- United Export Services Acquired By Carolina Wholesale Group
- United Express Acquired By National Freight
- United Fastener Acquired By Lynx Equity Limited
- United Federation of Esports Athletes Acquired By Valhallan
- United Financial Bancorp Acquired By People s United Financial
- United Financial Banking Companies Acquired By Cardinal Financial
- United Financial of North Carolina Acquired By HomeTrust Bancshares
- United Fintech Acquisitions
- United Fire Doors Inspection Acquired By Barrier Companies
- United Fire Group Acquisitions
- United Fire Protection Acquired By Pye-Barker Fire & Safety
- United Flea Markets Acquisitions
- United Flexible Acquisitions
- United Flow Technologies Acquisitions
- United Food Group Acquired By AFA Foods
- United Foodservice Equipment Group Acquired By The Middleby
- United Foundries Acquisitions
- United Games Acquired By Digital Republic SAE
- United Gaming Acquisitions
- United Generations Acquisitions
- United Gilsonite Laboratories Acquired By Sika AG
- United Global Logistics Acquired By RoadOne IntermodaLogistics
- United GMG Acquisitions
- United Graphics Acquired By Kingery Printing
- United Graphics Acquired By Banta
- United Green Mark Acquired By SiteOne Landscape Supply
- United Group B.V. Acquisitions
