- X-Cell Tool & Mold Acquired By SyBridge Technologies
- X-Ceptor Therapeutics Acquired By Exelixis
- X-Change Financial Access Acquired By Marex Spectron
- X-Chem Acquired By Clariant AG
- X-Chem Acquisitions
- X-Elio Acquisitions
- X-Elio - 14.23 MW Operating Solar Assets Acquired By CleanCapital
- X-Form Power and Equipment Supplies Acquired By Pine Grove Holdings
- X-Hive Acquired By DELL EMC
- X-IO Storage Acquired By Violin Systems
- X-IO Technologies Acquisitions
- X-L Engineering Acquired By Oberg Industries
- X-Line Acquired By TRC Companies
- X-Microwave Acquired By Quantic Electronics
- X-PERION Consulting AG Acquired By Atos SE
- X-Press Tool & Manufacturing Acquired By BlackHawk Industrial Distribution
- X-Prime S.A.S Acquired By J. Walter Thompson Company
- X-Rated Acquired By Davide Campari-Milano N.V.
- X-Ray Analytics Acquired By Blackboard
- X-Ray Industries Acquired By Applus Services S.A.
- X-Ray Optical Systems Acquired By Hach Lange
- X-Rite Acquisitions
- X-spine Systems Acquired By Xtant Medical Holdings
- X-treme Geek Acquired By VWR Education
- X-Y Tool & Die Acquisitions
- X-Zyme Acquired By Johnson Matthey Pharma Services
- x.ai Acquired By Bizzabo
- X.L. America Acquisitions
- X1 Esports and Entertainment Acquisitions
- X1 Acquired By Applied Value Group
- X15 Software Acquired By Mandiant
- X2 Biosystems - Head Impact Monitoring Assets Acquired By Prevent Biometrics
- X2 Biosystems Acquisitions
- X2 Games Acquired By Global Gaming Technologies
- X2O Media Acquired By Stratacache
- X32 Healthcare Acquired By Team Health Holdings
- X3M International Acquired By Aker Solutions ASA
- X4 Solutions Acquired By Sandler Partners
- X5 Music Group AB Acquired By Warner Music Group
- X5 Solutions Acquisitions
