| Andy Charles Ians System solid modelling geometric engine | Telecom | ACIS |
| Automated Cellular Imaging System | Hospital | ACIS |
| Automotive Competitiveness And Investment Scheme | Business | ACIS |
| Academic Contributor Information System | University | ACIS |
| Army Command Information System | Military | ACIS |
| Advance Cargo Information System | Transportation | ACIS |
| Automated Combat Information System | Military | ACIS |
| Algoma Central Railway Incorporated | Regional Railroad | ACIS |
| Automated Criminal Infraction System | Law | ACIS |
| Allianz Cornhill Information Systems | Business Firm | ACIS |
| Army Combat Identification System | Military | ACIS |
| Alliance for Creative Inevitable Solutions | University | ACIS |
| Automated Claim Information System | Government | ACIS |
| American Committee for Interoperable Systems | Government | ACIS |
| Access Control Interlock System | Computer Networking | ACIS |
| Advanced Ccd Imaging Spectrometer | Computer Hardware | ACIS |
| Automated Customs Information Service | US Government | ACIS |
| American Council for International Studies | University | ACIS |
| Adolescent Conduct Intervention Services | Community | ACIS |
| Adult Correctional Information System | Law | ACIS |
| Association for Contemporary Iberian Studies | Non-Profit Organization | ACIS |
| Africa Church Information Services | Organization | ACIS |
| Associate of The Institute of Chartered Secretaries and Administrators | Accounts and Finance | ACIS |
| Associate In The Chartered Institute of Secretaries | Job Title | ACIS |
