- 4C Offshore Acquired By TGS ASA
- 4Cable TV International Acquisitions
- 4Cabling Pty Acquisitions
- 4CAD Group Acquisitions
- 4Care Acquired By MyOptique Group
- 4Cite Marketing Acquired By Dentsu Aegis Network
- 4ColorLaser Acquired By Repro Products
- 4CS Acquired By PTC
- 4D Brands International Acquired By Spin Master
- 4D Global Energy Advisors Mergers and Acquisitions
- 4D pharma Acquisitions
- 4D Pharmacy Management Systems Acquired By Magellan Health
- 4D Technologies Acquired By Eagle Point Software
- 4Degrees Colocation Acquired By Vantage Data Centers
- 4DK Technologies Acquired By Radius Networks inc.
- 4DSP Acquired By Abaco Systems
- 4energia S.r.l. Acquired By Building Energy
- 4Forces Group Acquired By Isos Capital Management
- 4Front Engineered Solutions Acquired By ASSA ABLOY AB
- 4Front Holdings Acquisitions
- 4FRONT Solutions Acquisitions
- 4Front Technologies Acquisitions
- 4FrontSecurity Acquired By NortonLifeLock
- 4G Underground Construction Acquired By Alliant Networks
- 4i Capital Partners Mergers and Acquisitions
- 4i Vision Acquisitions
- 4i Acquired By Fractal Analytics
- 4imprint Group Acquisitions
- 4INFO - SMS Services Acquired By mBlox
- 4INFO Acquisitions
- 4Knines Acquired By Hall Capital Partners
- 4Launch BV Acquired By Xeptor B.V.
- 4M Building Solutions Acquisitions
- 4Mads Acquired By InSequent
- 4media Group Acquisitions
- 4net Technologies Acquired By Palatine Private Equity
- 4P Therapeutics Acquired By Nutriband
- 4path Acquired By Genesis Biotechnology Group
- 4PICO Litho B.V. Acquired By Raith
- 4Projects Acquired By Viewpoint
