| Name | Organisation Type | Country |
|---|---|---|
| Zettacore, Inc. | private company | United States |
| Zetta Research And Development LLC-AQT Series | private company | United States |
| Zero Technology Corp. | private company | South Korea |
| Zerna, Köpper & Partner | private company | Germany |
| Zeria Pharmaceutical Co., Ltd. | private company | Japan |
| Zeptosens AG | private company | Switzerland |
| Zeptor Corp. | private company | United States |
| Zeppelin University * Zeppelin Universität | higher education institution | Germany |
| Zephyr Logistics Ltd. | private company | South Korea |
| Zeosys - Zeolithsysteme Forschungs- und Vertriebsunternehmen fur Umweltschutz-, -Medizin- und Energietechnik GmbH | private commercial SME | Germany |