| ESTUDIO | ACTIVIDAD | CONST | MIEMBROS | FUNDADO | LOCALIDAD | ENLACES |
|---|---|---|---|---|---|---|
| M.A. Software | 1 | 1983 | () | |||
| Machape Project | 2023 | Barcelona () | ||||
| Mad Cream Games | 2-5 | 2020 | Madrid (Madrid) | |||
| Mad Gear Games | 2-5 | 2015 | Cádiz (Cádiz) | |||
| Made in Mavis | 2022 | Málaga (Málaga) | ||||
| MadSushi Games | 2020 | Vilatenim (Girona) | ||||
| Magic Fennec | 11-25 | 2020 | Zaragoza (Zaragoza) | |||
| Magic Rain Studios | 2021 | Santiago de Compostela (A Coruña) | ||||
| Main Loop | 2-5 | 2017 | Bilbao (Bizkaia) | |||
| Majorariatto | 2-5 | 2013 | Mallorca (Islas Baleares) | |||
| Malapata Studio | 2022 | Málaga (Málaga) | ||||
| Mango Protocol | 2-5 | 2015 | Barcelona (Barcelona) | |||
| ManiacBoy Studio | 2-5 | 2020 | Toledo (Toledo) | |||
| ManiacPanda Games | 2018 | Tajonar (Navarra) | ||||
| Mansion Games | 6-10 | 2019 | Palma de Mallorca (Islas Baleares) | |||
| Master Crowd Games | 6-10 | 2022 | Málaga (Málaga) | |||
| Materia Works | 2-5 | 2013 | Madrid (Madrid) | |||
| Matnogames | 1 | 2016 | Murcia (Murcia) | |||
| mc2games | 2-5 | 2020 | Valencia (Valencia) | |||
| Mean Mink | 2022 | () | ||||
| Mechanic Games | 2-5 | 2013 | Huelva (Huelva) | |||
| Mediatonic Madrid | 51-200 | 2019 | Madrid (Madrid) | |||
| Melbot | 11-25 | 2017 | Barcelona (Barcelona) | |||
| Melgo Cinema | 2-5 | 2018 | A Coruña (A Coruña) | |||
| Memetic Studios | 2-5 | 2019 | Madrid (Madrid) | |||
| MercurySteam | 51-200 | 2002 | San Sebastián de los Reyes (Madrid) | |||
| Meteorbyte Studios | 2-5 | 2017 | Oviedo (Asturias) | |||
| Midnight Coffee | 2021 | () | ||||
| Mighty Polygon | 2-5 | 2016 | Valencia (Valencia) | |||
| Milkstone Studios | 6-10 | 2008 | Oviedo (Asturias) | |||
| MiraiMada Games | 2020 | Madrid (Madrid) | ||||
| Miru Studio | 6-10 | 2020 | San Sebastián (Gipuzkoa) | |||
| Misstep Studio | 6-10 | 2021 | () | |||
| Mitsuki Game Studio | 2021 | Barcelona (Barcelona) | ||||
| Moad Studio | 2-5 | 2016 | Málaga (Málaga) | |||
| Moaix Studios | 2023 | () | ||||
| Mojon Twins | 2-5 | 2005 | () | |||
| Molegato | 1 | 2013 | Madrid (Madrid) | |||
| Monis Games | 1 | 2017 | Sevilla (Sevilla) | |||
| Monte Perdido | 2-5 | 2020 | Madrid (Madrid) | |||
| Moon Mole Games | 2-5 | 2023 | Barcelona (Barcelona) | |||
| Moon Whale Studio | 2020 | Málaga (Málaga) | ||||
| Moonatic Studios | 6-10 | 2020 | Pamplona (Navarra) | |||
| Moonlight Games | 2-5 | 2019 | Jaén (Jaén) | |||
| Moonmana | 2008 | Santa Cruz de Tenerife () | ||||
| Muquo Games | 2-5 | 2017 | Sevilla (Sevilla) |