Organizations
- Accelerator Test Facility, experimental particle accelerators at KEK laboratory in Japan and Brookhaven National Laboratory in the U.S.
- American Type Founders, former dominant American manufacturer of metal type
- Asia Task Force, a committee of UK businesses, informing the UK response to globalisation
- Atlantic Theatre Festival, a professional theatre company located in Wolfville, Nova Scotia, Canada
- Bureau of Alcohol, Tobacco, Firearms and Explosives commonly referred to as "the ATF", a law enforcement agency within the United States Department of Justice
Read more about this topic: ATF