List of Significant Subsidiaries of the Registrant
| Group Company Name | Country of incorporation | Year of incorporation | Share Capital | |
| WISeKey SA | Switzerland | 1999 | CHF | 933,436 |
| WISeKey Semiconductors SAS | France | 2010 | EUR | 1,298,162 |
| WiseTrust SA | Switzerland | 1999 | CHF | 680,000 |
| WISeKey ELA SL | Spain | 2006 | EUR | 4,000,000 |
| WISeKey SAARC Ltd | U.K. | 2016 | GBP | 100,000 |
| WISeKey USA Inc1 | U.S.A | 2005 | USD | 6,500 |
| WISeKey India Private Ltd2 | India | 2016 | INR | 1,000,000 |
| WISeKey IoT Japan KK | Japan | 2017 | JPY | 1,000,000 |
| WISeKey IoT Taiwan | Taiwan | 2017 | TWD | 100,000 |
| WISeCoin AG | Switzerland | 2018 | CHF | 100,000 |
| WISeKey Equities AG | Switzerland | 2018 | CHF | 100,000 |
| WISeKey Semiconductors GmbH | Germany | 2019 | EUR | 25,000 |
| WISeKey Arabia - Information Technology Ltd | Saudi Arabia | 2019 | SAR | 200,000.00 |
| WISe.Art AG3 | Switzerland | 2020 | CHF | 100,000 |
| WISeKey Vietnam Ltd | Vietnam | 2021 | VND | 689,400,000 |
| SEALSQ Corp.4 | British Virgin Islands | 2022 | USD | 100 |
| WISeKey (Gibraltar) Limited | Gibralatar | 2022 | GBP | 100 |
| Trust Protocol Association | Switzerland | 2019 | CHF | - |
| 1 50% owned by WISeKey SA and 50% owned by WiseTrust SA |
| 2 88% owned by WISeKey SAARC which is controlled by WISeKey International Holding AG |
| 3 Formerly TrusteCoin AG, formerly WiseAI AG, 100% owned by WISeKey International Holding AG from August 27, 2021 |
| 4 Formerly SEAL (BVI) Corp. |