| Ledas Ltd | Novosibirsk |
| Legsoft | Moscow |
| Lenvendo Soft LLC | Saint Petersburg |
| Leta Capital | Moscow |
| Life Pay | |
| Lighttek Software | Sverdlovsk |
| Like | Moscow |
| Link-soft | Moscow |
| Linksoft | Moscow |
| Linux Format | Moscow |
| Linux по-русски | |
| Linux.org.ru | Moscow |
| LinuxLand | Moscow |
| Linuxnews.ru | Moscow |
| LinuxPortal | Moscow |
| LinuxRSP.Ru | Moscow |
| LinuxShare | Moscow |
| LinuxShop.ru | Moscow |
| Lion Labs | Moscow |
| Lipetsk State Technical University | Lipetsk |
| LitexMedia | Omsk |
| Loginet | |
| LogiShop.ru | Moscow |
| Logler.com | Kaliningrad |
| Logosoft | Moscow |
| Lomond-msk | Moscow |
| LuckyIcon Art LLC | Ryazan |
| LuxContinent LLC | Moscow |
| M.V. Lomonosov Moscow State University - Research Computing Center | Moscow |
| M1Cloud | |
| M2M телематика | Moscow |
| Ma2 | Perm |
| Maff | |
| Mageo.ru | |
| MagicPC.ru | Moscow |
| Maison des entrepreneurs français à Moscou | |
| MakePro | |
| Mandarin Global Ltd | |
| Mandarin Solutions | Moscow |
| Mannodesign | Saint Petersburg |
| MAPILab Ltd | Kaliningrad |
| Maps.me | Moscow |
| Masterhost | |
| Mastername | Moscow |
| Math MSU | Moscow |
| Math-Net.Ru | Moscow |
| Maxilect | |
| Maxlan | Moscow |
| MaxStyle | Moscow |
| MaxTarget | Moscow |