| Kvarken Space Center | |
| Kwork | |
| Kyy Games Oy | |
| LAB University of Applied Sciences | Päijänne Tavastia |
| LabF | Pirkanmaa |
| LähiTapiola | |
| Laine Print | |
| Lakome Oy | |
| LanWorld Finland Oy | Pirkanmaa |
| Lapin ammattikorkeakoulu | Lapland |
| Lapin yliopisto | Lapland |
| Lappeenrannan teknillinen yliopisto | South Karelia |
| Laurea University of Applied Sciences | |
| Leanware | |
| Lemonsoft | |
| Liana Technologies | |
| Life Line Ventures | Uusimaa |
| Lifetime Oy | |
| Lightheart Entertainment | |
| Lightneer | |
| Lingsoft | Uusimaa |
| LiquidBlox | |
| LocalBitcoins Oy | |
| Logmore | |
| Loihde Factor | |
| Loihde Trust | |
| Louhi Net Oy | Uusimaa |
| Louhos Digital Oy | |
| Loupedeck Ltd | |
| LS CancerDiag Ltd | |
| Luxmet Ltd | |
| LYGG | |
| LymphaTouch Oy | |
| LymphaTouch, Inc. | |
| M&V Software Oy | |
| Madeby.net | Southwest Finland |
| MagiCAD | Southwest Finland |
| Magsort Oy | |
| Mainframe Industries | |
| Mainostoimisto AD-Office Oy | |
| Maki.vc | |
| Maria 01 | Uusimaa |
| MariaDB Foundation | Uusimaa |
| Marskidata Oy | |
| Masina Computer Oy | Uusimaa |
| MasterPlanet Oy | |
| MatFox | Pirkanmaa |
| Matriset Oy | South Karelia |
| Max Technologies Oy | |
| Medanets Oy | |