- Western Quartz Products Acquired By Baldwin Technology Company
- Western Refining Acquisitions
- Western Relief Acquired By United Site Services
- Western Remac Acquired By RoadSafe Traffic Systems
- Western Reserve Partners LLC
- Western Reserve Products Acquired By ODL
- Western Reserve Senior Care Acquired By Kindred Healthcare
- Western Rock Bit Company Limited Acquired By Baker Hughes Company
- Western Roofing Supply Company Acquired By ABC Supply
- Western Safety Products Acquired By Bunzl
- Western Schools Acquired By American School of Real Estate Express
- Western Security Bank NA Acquired By CVB Financial
- Western Security Systems Acquired By Mountain Acquisition Company
- Western Select Insurance Acquired By Pie Insurance Services
- Western Shelter Systems Acquired By Guardian Capital Partners
- Western Shield Label Acquisitions
- Western Sierra Bancorp Acquired By Umpqua Holdings
- Western Skies MGU Acquired By Manhattan Life Group
- Western Smokehouse Partners Acquired By AUA Private Equity Partners
- Western Star Concrete Acquired By Endonovo Therapeutics
- Western Star Trucks Australia Pty Acquired By Penske Automotive Group
- Western State Design Acquired By EVI Industries
- Western States Electric Acquired By HD Supply Holdings
- Western States Glass Acquired By Trulite Glass & Aluminum Solutions
- Western States Insurance - Las Cruces opretations Acquired By HUB International
- Western States Insurance Group Acquisitions
- Western States Reclamation Acquisitions
- Western Stress Acquired By Analytic Stress Relieving
- Western Technical Services Acquired By Exova Group
- Western Tool & Supply Acquired By Carlson Systems Holdings
- Western Transit Systems Acquired By Tectrans
- Western Troy Capital Resources Acquisitions
- Western Truck Body Mfg Acquired By Osw Equipment & Repair
- Western Tube & Conduit Acquired By Zekelman Industries
- Western Utilities Transformer Service Acquired By RESA Power
- Western Utility Contractors Acquired By Tetra Tech
- Western Veterinary Partners Acquired By Tyree & D Angelo Partners
- Western Washington Bancorp. Acquired By Heritage Financial
- Western Wind Energy Acquisitions
- Western Window Systems Acquired By PGT Innovations
