| Rank | Abbreviation | Meaning |
|---|
| ***** | ACISS | Augmented Criminal Investigation Support System
| |
| **** | ACISS | Alliance for Competitive International Satellite Services
| |
| **** | ACISS | Advisory Committee on the International Space Station
| |
| **** | ACISS | Assurance Certified Inspection & Safety Services
| |
| **** | ACISS | Army Communication and Information Systems Specialist
| |
| *** | ACISS | Arts and Crafts Industry Support Strategy
| |
| ** | ACISS | Association of Consultants for International Students
| |
| * | ACISS | All Canadian Inspection & Safety Services
| |
| * | ACISS | Allegheny County Injury Surveillance System
| |
| * | ACISS | augmented criminal investigations support system
| |
| * | ACISS | Abraxas Computer Information Security Services
| |
| * | ACISS | Alzheimer's Caregiver Internet Support System
| |
| * | ACISS | Australasian Computational Intelligence Summer School
| |