| IoT Factory Ukraine | |
| IPCOM | Kiev |
| ipLex | Kiev |
| iProAction | Kiev |
| ISP NetLux | Kiev |
| ISP Shtorm | Kirovohrad |
| IT Arena | |
| IT Consulting & Soft Developer | Kiev |
| IT Dnipro | |
| IT Dnipro Community | |
| IT Doctor | Kiev |
| IT Education Academy | Kiev |
| IT HIT | Kiev |
| IT Hub Kharkiv | |
| IT Innovations | |
| IT Outsourcing Review | |
| IT Ukraine Association | Kiev |
| IT-Networks | |
| IT-Solutions | Kiev |
| IT-Tehnolog.com | Kiev |
| IT-Transit, LLC | |
| IT-совместимый сайт | Kiev |
| ITbiz Solutions | Kiev |
| ITC Online | Kiev |
| ITComfort | Kiev |
| Iterios | |
| Iternal Group | |
| ITExpert | |
| Itirra | Kiev |
| ITMag | Kiev |
| ITVDN | |
| itWorksinUA | Kiev |
| IZZI Studio | Kiev |
| Iнститут фізичної оптики iменi О. Г. Влоха | |
| Jaws | Kiev |
| JellyFish.tech | Zaporizhzhia |
| JetSoftPro, LLC | |
| JEVERA Software Solutions | Kiev |
| Jobs4Jobs | Dnipropetrovsk |
| JOBstudio | |
| Joomla! - Українська Спільнота | Kiev |
| JSN | Zaporizhzhia |
| jSolutions | |
| Junior IT | |
| JustCoded | |
| Kanz Software | Odessa |
| Kapowai | Kiev |
| Kavoon | Kiev |
| Keenethics | |
| KeyCRM | |