| Company name | Reg. code |
|---|---|
| JGECHO OÜ | 16932496 |
| GECCO OÜ | 16755491 |
| GREEN GECKO OÜ kustutatud (former name OÜ Stif Natural) | 14101526 |
| ALTER GECKO OÜ | 14999544 |
| GECKO SOLUTIONS OÜ | 14447331 |
| TECHO EHITUS OÜ kustutatud | 12298950 |
| GECKO ENGINEERS OÜ kustutatud | 12718323 |
| GREY GECKO OÜ | 12172261 |
| GECKO GRUPP OÜ | 16496279 |
| WHITE GECKO OÜ kustutatud | 12508436 |
| ECHO OÜ | 11411503 |
| JECO OÜ kustutatud | 12881885 |
| GECKO & VAN ORTON OÜ (former name Nordleader OÜ) | 14806511 |
| GECO & CO. OÜ kustutatud | 12328160 |
| ECHO ONE OÜ kustutatud | 10794722 |
| GECO ONE OÜ | 14589580 |
| ECHO DESIGN OÜ | 12567338 |
| ECHO MEDIA OÜ kustutatud | 12808997 |
| ECHO LIBRARY OÜ | 17470253 |
| ECHO ONE OÜ | 10806218 |
| ECHO TRIBE OÜ | 16287142 |
| ECHO HILL OÜ | 10800552 |
| GECO CAPITAL OÜ | 16140223 |
| HOME ECHO OÜ | 16305983 |
| INTERACTIVE ECHO GAMES OÜ kustutatud | 12794028 |
| FREEFLOW OÜ kustutatud (former name Gecko OÜ) | 12615132 |
| ECHO SILAGE AND HAY OÜ | 17191205 |
| STARSHIP TECHNOLOGIES OÜ (former name Projekt Echo OÜ) | 12673365 |