| ATAC | Abusable Technologies Awareness Center 
| Others |
| ATAC | Academic Technologies Advisory Committee
| Others |
| ATAC | Academic Technology Advisory Committee
| Others |
| ATAC | Academic Technology Advisory Council
| Others |
| ATAC | Academy of Texas Aquatic Champions
| Others |
| ATAC | Accelerated Technical Assistance for Conservation
| Others |
| ATAC | Accountability Technical Advisory Committee
| Others |
| ATAC | Active Thermo Atmosphere Combustion
| Others |
| ATAC | Active Threat Acquisition Calibratoradvanced
| Others |
| ATAC | Addiction Treatment Advocacy Coalition
| Others |
| ATAC | Adic Technical Assistance Center
| Others |
| ATAC | Administrative Tribunal Advocates of Canada
| Others |
| ATAC | Advanced Technology And Academic Centre
| Others |
| ATAC | Advanced Technology and Application Center
| Others |
| ATAC | Advanced Thermal Alloy Construction
| Others |
| ATAC | Advanced Traceability And Control
| Others |
| ATAC | Advanced Traffic Analysis Center
| Others |
| ATAC | Aerospace Technology Advisory Committee
| Others |
| ATAC | African Technical Advisory Committee
| Others |
| ATAC | Agricultural Technical Advisory Committees
| Others |
| ATAC | Aids Treatment Activists Coalition
| Others |
| ATAC | Air Transport Association of Canada
| Others |
| ATAC | Air-To-Air Combat
| Others |
| ATAC | Airborne Tactical Advantage Company
| Others |
| ATAC | Alaska Telehealth Advisory Commission
| Others |
| ATAC | Alaska Telehealth Advisory Council
| Others |
| ATAC | All Terrain All Climate
| Others |
| ATAC | All Terrain All Condition
| Others |
| ATAC | All Terrain Armored Combatant
| Others |
| ATAC | All Topics Are Considered
| Others |
| ATAC | Alternating Two Aluminum Composite
| Others |
| ATAC | Alternative Technology Advisory Committee
| Others |
| ATAC | American Teens Against Crime
| Others |
| ATAC | Anti Terrorism Advisory Council
| Others |
| ATAC | Anti-Terrorism Alert Center
| Others |
| ATAC | Antibody Therapy Against Coronavirus
| Others |
| ATAC | Aphis Technical Assistance Center
| Others |
| ATAC | area Tallahassee aquatic club
| Others |
| ATAC | Arizona Transfer Articulation Committee
| Others |
| ATAC | Army Travel Assistance Center
| Others |
| ATAC | Asbestos Testing and Consultancy
| Others |
| ATAC | Assistive Technology Advisory Committee
| Others |
| ATAC | Assistive Technology Advocacy Center
| Others |
| ATAC | Assistive Technology And Augmentative Com
| Others |
| ATAC | Assistive Technology And Augmentative Communication
| Others |
| ATAC | Atacacademic Technology Advisory Committee
| Others |
| ATAC | Authenticity Tenacity Audacity and Capacity
| Others |
| ATAC | Auto Tension Adjust Concept
| Others |
| ATAC | Auto Tension Adjustment Concept
| Others |
| ATAC | Auto Theft Advisory Committee
| Others |
| ATAC | Automated Ticket Agent Checkout
| Others |
| ATAC | Automated Ticketing and Accounts Control
| Others |
| ATAC | Automatic Targeting Attack Communicator
| Others |
| ATAC | Avenging the Ancestors Coalition
| Others |
| ATAC | Aviation Electronics Technician (aircraft)
| Others |
| ATAC | Avionics Test And Analysis Corporation
| Others |