| Abbreviation | Definition |
|---|---|
| PZI | Priest- Zimmerman, Inc. |
| PZK | Porsche Zentrum Koblenz |
| PZK | Punk Ziegel & Company |
| PZL | Panstwowe Zaklady Lotnicze |
| PZM | Polska Zegluga Morska ( Polish Steamship Company) |
| PZM | Purity Zinc Metals |
| PZN | Physique in Zetland & Neighbourhood |
| PZO | PACIFIC Zipper Company, LTD |
| PZR | Planning and Zoning Resource Group |
| PZS | Puzzle Solutions |
| PZU | Powszechny Zaklad Ubezpieczen SA |
| PZY | Pizzey's Flaxseed |
| Q4L | Quality for Less |
| QA | Quality and Asurance |
| QAA | Quality Assurance Associates |
| QAA | Quality Assurance Association |
| QAA | Quality Automotive Accessories, Inc. |
| QAC | Quality Air Control |
| QACC | Qatar Aircraft Catering Company |
| QACC | Qatari Arabian Construction Company |