- 3Play Media Acquisitions
- 3PM Shield Acquired By eBay
- 3Point Machining Acquired By Shipston Group Limited
- 3point Science Acquired By Seequent
- 3Points Acquired By Ntiva
- 3Q Digital Acquisitions
- 3R Products & Services Acquired By Installed Building Products
- 3rd Dimension Industrial 3D Printing Acquired By ADDMAN Engineering
- 3rd Planet Techies Acquisitions
- 3ree Pte Acquired By WPP
- 3rp.com Acquired By CentriLogic
- 3S Engineering Acquired By Sierra Nevada
- 3S SA Acquired By P4 Sp. z oo
- 3sage Consulting Acquired By ThreeBridge Solutions
- 3SBio Acquisitions
- 3scale Acquired By Red Hat
- 3SG Plus Acquisitions
- 3SI Security Systems Acquisitions
- 3Sixty Integrated Acquired By The Cook & Boardman Group
- 3STEP Sports Acquisitions
- 3sun Group Acquired By Worley Limited
- 3T Energy Group Acquisitions
- 3T Results Acquired By EcoOnline Holding AS
- 3T Software Labs Acquired By Red Gate Software
- 3Tera Acquired By CA Technologies
- 3ti Solutions Acquired By Mirum
- 3TIER Acquired By Vaisala Oyj
- 3TS Capital Partners Mergers and Acquisitions
- 3united Mobile Solutions AG Acquired By VeriSign
- 3V SourceOne Capital Mergers and Acquisitions
- 3V Transport A/S Acquired By DSV Miljø A/S
- 3vGeomatics Acquired By Measurand
- 3vis Technologies Acquired By Scalar Decisions
- 3VR Security Acquired By Identiv
- 3W Dystrybucja Budowlana SA Acquisitions
- 3Way Networks Acquired By Airvana
- 3Wire Group Acquired By Parts Town
- 3Z Brands Acquisitions
- 4 AM Midstream Acquisitions
- 4 G s Truck Renting Acquired By Ryder System
