| Organization | Blocks | Addresses | First registered |
|---|---|---|---|
| Routerboard.com | 22 | 369 million | 21 Jan 2003 |
| Company NA Stage & Light | 1 | 16.8 million | 14 Jan 2022 |
| Computer Hardware Design SIA | 1 | 16.8 million | 1 Jul 2006 |
| EVIDENCE Network SIA | 1 | 16.8 million | 27 Mar 2013 |
| SAF Tehnika Ltd. | 1 | 16.8 million | 4 Dec 2000 |
| SIA "TeleSet" | 1 | 16.8 million | 6 Dec 2017 |
| Uriel Technologies SIA | 1 | 16.8 million | 16 Feb 2012 |
| Atlas Aerospace | 1 | 1 million | 4 Feb 2021 |
| Babbit and Friends, SIA | 1 | 1 million | 24 Sep 2020 |
| Embedded Systems SIA | 1 | 1 million | 2 Jul 2026 |
| Intelitech SIA | 1 | 1 million | 27 Mar 2020 |
| HANZAS ELEKTRONIKA, SIA | 1 | 4.1 thousand | 30 Jul 2008 |
| NAS Engineering PRO | 1 | 4.1 thousand | 9 Jul 2022 |
| OpenRB.com, Direct SIA | 1 | 4.1 thousand | 31 Mar 2013 |
| Smart Dynamics SIA | 1 | 4.1 thousand | 12 Jan 2026 |
| XTech2 SIA | 1 | 4.1 thousand | 12 Jan 2014 |
Every organization with blocks registered in Latvia, sorted by total address space.