| Abbreviation | Definition |
|---|---|
| SZAHL | Sarabhai Zydus Animal Health Ltd. (India) |
| SZBW | Shanghai Zhenhua Bearing Works (Shangai Bearing Company; China) |
| SZD | Schottenstein, Zox, & Dunn |
| SZH | Stichting Zeldzame Huisdierrassen |
| SZM | Sendzimir Mills |
| SZP | ShadowZone Productions |
| SZP | Squeaky Zone Productions |
| SZQ | Suzi-Q Horses |
| SZR | ShadowZone Records |
| SZR | Stowell, Zeilenga, & Ruth, L.L.P. |
| SZS | Sheldon Zuieback Sales |
| SZVCA | Shenzhen Venture Capital Association |
| SZW | Scalzo, Zogby, & Wittig Insurance, Inc. |
| SZZ | Shaughnessy, Zechmeister, & Zechmeister |
| T&B | Thomas & Betts Corporation |
| T&C | Terms and Conditions |
| T&T | Trekking and Travel |
| T3T | Times 3 Technologies |
| TA | Texas Anime |
| TA | TransAdelaide |