| Timber Industry Superannuation Scheme |
Business |
TISS |
| Therapeutic Intervention Scoring System |
Hospital |
TISS |
| troop issue subsistence system |
Government |
TISS |
| tactical intermediate support system |
Government |
TISS |
| Teaching In Secondary Schools |
University |
TISS |
| Takakei Information System Society |
Non-Profit Organization |
TISS |
| Thermal Imaging Sensor System |
Military |
TISS |
| TEWS Intermediate Support System |
Military |
TISS |
| Teacher Instructional Support Specialist |
Business Position |
TISS |
| transportation information subsystem |
Government |
TISS |
| The Institute for Security Studies |
Non-Profit Organization |
TISS |
