| ACW | A Christian Witness 
| Others |
| ACW | A Cold Wall
| Others |
| ACW | A Common Word
| Others |
| ACW | ABB Customer World
| Others |
| ACW | Absolute Carnage Wrestling
| Others |
| ACW | Academic Coaching and Writing
| Others |
| ACW | Accessibility Wizard
| Others |
| ACW | Ace Championship Wrestling
| Others |
| ACW | Active Content Wizard
| Others |
| ACW | Actual Captures Worksheet
| Others |
| ACW | Adreneline Championship Wrestling
| Others |
| ACW | Advanced Computer Watch
| Others |
| ACW | Advanced Conventional Weapon
| Others |
| ACW | Advanced Cosmetology Workshop
| Others |
| ACW | Advertising Club of Westchester
| Others |
| ACW | After Call Work
| Others |
| ACW | Air Combat Warfare
| Others |
| ACW | Air Commando Wing
| Others |
| ACW | Air Control Wing
| Others |
| ACW | Air Coupled Woofer
| Others |
| ACW | Air Culinaire Worldwide
| Others |
| ACW | Aircraft Control and Warning
| Others |
| ACW | Aircraft Control Warning
| Others |
| ACW | Akamine Christman and Wall
| Others |
| ACW | Albany Championship Wrestling
| Others |
| ACW | Alcoholism Center for Women
| Others |
| ACW | Algemeen Christelijk
| Others |
| ACW | Algemeen Christelijk Werkersverbond
| Others |
| ACW | All Cosmetics Wholesale
| Others |
| ACW | Alliance for Computers and Writing
| Others |
| ACW | Alternating Continuous Waves
| Others |
| ACW | Alternative Careers and Wellbeing
| Others |
| ACW | Alternative Championship Wrestling
| Others |
| ACW | Always Championship Wrestling
| Others |
| ACW | Always Consistent With
| Others |
| ACW | Amazon Cloud Watch
| Others |
| ACW | American Car Wash
| Others |
| ACW | American Car World
| Others |
| ACW | American Christian Writers
| Others |
| ACW | American Civil War
| Others |
| ACW | American Clay Works
| Others |
| ACW | American Combat Wrestling
| Others |
| ACW | American Cord and Webbing
| Others |
| ACW | American Creosote Works
| Others |
| ACW | Anarchy Championship Wrestling
| Others |
| ACW | Anglican Church Women
| Others |
| ACW | Anglican Church Workers
| Others |
| ACW | Anti Clock Wise
| Others |
| ACW | Anti Crash Weapon
| Others |
| ACW | Apollo Championship Wrestling
| Others |
| ACW | Approach Control Warning
| Others |
| ACW | Approval to Commence Work
| Others |
| ACW | Area Clearance Weapon
| Others |
| ACW | Aries Computer Warehouse
| Others |
| ACW | Arts Council of Wales
| Others |
| ACW | Association of Career Wrestlers
| Others |
| ACW | ATM Cash Withdrawal
| Others |
| ACW | Atomic Championship Wrestling
| Others |
| ACW | Autoliv China Steering Wheels
| Others |
| ACW | Automated Car Wash
| Others |
| ACW | Automobile Club of Washington
| Others |
| ACW | Auxiliary Cooling Water
| Others |
| ACW | Auxillary Cooling Water
| Others |