CTPI
| Acronym | Definition |
|---|---|
| CTPI | Change Technology Partners, Inc. (media services; Greenwich, CT) |
| CTPI | Central Texas Paranormal Investigators (Austin, TX) |
| CTPI | Clinical Teaching Perception Inventory (teaching device; University of California, Irvine) |
| CTPI | Champion Tree Project International |
| CTPI | Corporate Tax Publishers, Inc. (Leonia, NJ) |