| Sweden | Poland | |
| MK Tech | Velum | |
| Box 1050 | UI. Niedzielna 25 | |
| 47522 Ockero | 52-120 Osola | |
| T: +46-734265460 | T: +48-601443401 | |
| W: www.marcuscables.com | F: +48-713428015 | |
| W: www.mktech.se | W: www.velum-cable.com | |
| E: info@marcuscables.com | E: info@velum-cable.com | |
| Czech Republic and Slovakia | ||
| Horizon Trading Prague s.r.o | ||
| K valu 352/4, 10200 Praha 10 | ||
| Praha | ||
| T: +420 222715959 / +420606346822 | ||
| F:+420 272702222 | ||
| W: www.sharkwire.cz | ||
| E: horizontrading@email.cz | ||