| Organization | Blocks | Addresses | First registered |
|---|---|---|---|
| Amicus SK, s.r.o. | 1 | 16.8 million | 20 Oct 2012 |
| Antik computers & communications s.r.o. | 1 | 16.8 million | 13 Oct 2005 |
| Calian Advanced Technologies | 1 | 16.8 million | 5 Jun 2002 |
| CONTAL OK Ltd. | 1 | 16.8 million | 9 Sep 2002 |
| Data Ltd. | 1 | 16.8 million | 19 Aug 2004 |
| ELTECO A.S. | 1 | 16.8 million | 8 Sep 2000 |
| GLITEL Stropkov, s.r.o. | 1 | 16.8 million | 6 Mar 2013 |
| GOTIVE a.s. | 1 | 16.8 million | 13 Jun 2006 |
| Liptel s.r.o. | 1 | 16.8 million | 8 May 2012 |
| Magneti Marelli Slovakia s.r.o. | 1 | 16.8 million | 2 Jun 2012 |
| Microstep-MIS spol. s r.o. | 1 | 16.8 million | 13 Jan 2013 |
| NETCONS, s.r.o. | 1 | 16.8 million | 15 Aug 2006 |
| OMS spol. s.r.o. | 1 | 16.8 million | 20 Jan 2013 |
| Proxis, spol. s r.o. | 1 | 16.8 million | 15 Apr 2020 |
| RadioCOM, s.r.o. | 1 | 16.8 million | 13 Jun 2006 |
| RF elements s.r.o. | 1 | 16.8 million | 13 Jun 2015 |
| TELCO systems, s.r.o. | 1 | 16.8 million | 21 Sep 2012 |
| Universal Media Corporation /Slovakia/ s.r.o. | 1 | 16.8 million | 16 Jul 2009 |
| Voipac s.r.o. | 1 | 16.8 million | 25 Apr 2003 |
| Vutlan sro | 1 | 16.8 million | 8 Oct 2008 |
| XIMEA | 1 | 16.8 million | 17 Dec 2014 |
| Elvys s.r.o | 2 | 1.1 million | 28 Sep 2019 |
| ELOC8 SRO | 1 | 1 million | 18 Aug 2025 |
| Q-PRODUCTS a. s. | 1 | 1 million | 16 Oct 2015 |
| Showtacle s.r.o. | 1 | 1 million | 28 May 2017 |
| Tap Home, s.r.o. | 1 | 1 million | 18 Jan 2023 |
| Aliter Technologies | 1 | 4.1 thousand | 11 Dec 2020 |
| Contineo s.r.o. | 1 | 4.1 thousand | 5 Oct 2014 |
| Corinex Global | 1 | 4.1 thousand | 30 Jul 2008 |
| ejoin, s.r.o. | 1 | 4.1 thousand | 16 Dec 2020 |
| ELNEC s.r.o. | 1 | 4.1 thousand | 22 Dec 2013 |
| ENVItech s.r.o. | 1 | 4.1 thousand | 14 Jun 2015 |
| Inoteska s.r.o. | 1 | 4.1 thousand | 30 Jul 2008 |
| MARKUS LABS | 1 | 4.1 thousand | 6 Dec 2015 |
| MICRONIC s.r.o. | 1 | 4.1 thousand | 30 Jul 2008 |
| MMS Servis s.r.o. | 1 | 4.1 thousand | 30 Jul 2008 |
| MONOGRAM technologies ltd | 1 | 4.1 thousand | 20 May 2013 |
| Radixon s.r.o. | 1 | 4.1 thousand | 16 Jul 2017 |
| Remia s.r.o. | 1 | 4.1 thousand | 30 Jul 2008 |
| SEGRON Automation, s.r.o. | 1 | 4.1 thousand | 19 Nov 2025 |
| SENSONEO | 1 | 4.1 thousand | 9 Apr 2017 |
| Showtacle | 1 | 4.1 thousand | 17 May 2009 |
| Soft & Control Technology s.r.o. | 1 | 4.1 thousand | 31 May 2009 |
| SRS Group s.r.o. | 1 | 4.1 thousand | 14 May 2017 |
| T-Industry, s.r.o. | 1 | 4.1 thousand | 5 Jan 2011 |
| TSS COMPANY s.r.o. | 1 | 4.1 thousand | 22 May 2024 |
| TTC Telecom | 1 | 4.1 thousand | 30 Jul 2008 |
| VONSCH | 1 | 4.1 thousand | 13 Nov 2020 |
| XIMEA s.r.o. | 1 | 4.1 thousand | 30 Jul 2008 |
Every organization with blocks registered in Slovakia, sorted by total address space.