Abbreviations beginning with a

ARCHIEArmed Robot For Control Of Highly Inflammatory Events
Miscellaneous » Unclassified

ArchIntPharmacoTherArchives Internationales de Pharmacodynamie et de Therapie
Academic & Science » Libraries

ArchMalProfArchives des Maladies Professionnelles de Medecine du Travail et de Securite Sociale (Paris)
Academic & Science » Libraries

ARCHONArchitecture for Cooperative Heterogeneous Online Systems
Community

ARCHONAssistance Response Contingent & Hazard Overseer Network (science fiction comic book)
Miscellaneous

ARCHPRAdvanced Archive Password Recovery
Computing » IT

ARCHSArmy Reactor Systems Health & Safety Review Committee
Academic & Science

ARCHSArea Resources for Community and Human Services
Community » Non-Profit Organizations

ARCHSArea Resources for Community and Human Services (St. Louis, Missouri)
Miscellaneous

ArchSciMedArchivio per le Scienze Mediche (Turin)
Academic & Science » Libraries

ArchSDArchitectural Services Department
Governmental