- Western Hydro Acquired By Franklin Electric
- Western Industrial National Bank Acquired By CVB Financial
- Western Industries Plastic Products Acquisitions
- Western International Gas & Cylinders Acquisitions
- Western International Securities Acquired By Atria Wealth Solutions
- Western International University Acquired By Apollo Education Group
- Western Investigations Pty Acquired By G4S Compliance & Investigations Pty
- Western M P Infrastructure Toll Roads Pvt. Acquired By Essel Infraprojects
- Western Machine Works Acquired By In-Place Machining
- Western Marketing Acquisitions
- Western Medical Acquired By Derma Sciences
- Western Metal Decorating Acquired By Vorteq Coil Finishers
- Western Metals Recycling Acquisitions
- Western Metrology Acquired By Selmet
- Western Midstream Partners Acquisitions
- Western Milling Acquisitions
- Western National Bank Acquisitions
- Western National Bank - Loans and Deposits Acquired By Washington Federal
- Western National Mutual Insurance Acquisitions
- Western Natural Gas Acquired By Sharp Energy
- Western Newborn Specialists Acquired By Pediatrix Medical Group
- Western Ohio Sedation Associates Acquired By CRH Medical
- Western Oilfield Equipment Rentals Acquired By MarkWater Handling Systems
- Western Outdoor Interactive Pvt. Acquired By Global Eagle Entertainment
- Western Pacific Enterprises GP Acquired By MYR Group
- Western Pacific Signal Acquired By Econolite Group
- Western Packaging Acquired By B2B Industrial Packaging
- Western Paper Distributors Acquisitions
- Western Penn Marketing Acquired By Integrity Marketing Group
- Western Pennsylvania Operations Division /Ennstone/ Acquired By Lindy Paving
- Western Pest Services Acquired By Rollins
- Western Petroleum Acquired By World Fuel Services
- Western Petroleum Acquired By Pilot Travel Centers
- Western Plains Machinery Acquired By Titan Machinery
- Western Plumbing and Industrial Supplies Acquired By Desco Plumbing and Heating Supply
- Western Pneumatic Tube Acquired By Leggett & Platt
- Western Pneumatics Acquired By LDX Solutions
- Western Power Distribution Acquired By National Grid
- Western Precision Aero Acquired By RBC Bearings
- Western Propane Service Acquired By Superior Plus
