- Macon
- MagiCAD
- Magic Add
- Magisso
- Magmatao
- Magnasense
- Magsort
- Maikos
- MailMoo
- MAJ
- Make a BIM
- Makiina
- Maksuturva
- Makumaku
- Mandatory Trainings
- Manna Insect
- Maplet
- Mapos
- Mapple
- Maptionnaire
- Marble
- Marecast
- Marfle
- Marginum
- MariaDB
- mariPOC
- Masinotek
- Mastercom (previously Kiho)
- MatcherApps
- Materflow
- Mazhr
- M Company
- MealLogger
- Measurlabs
- Medanets
- Medicortex Finland
- Medics24
- Medigoo
- MediSapiens
- Medixine
- MeetingPackage
- Meetin.gs
- Megical
- Mekitec
- Mekiwi
- Meliora
- Meluta
- M&E Management
- Membook
- Memorial
- Mental Moustache
- Mentorii / Aivoapina
- Meru Health
- Merus Power Dynamics
- Meshly
- Metacore
- Metaplay
- MetGen
- Metrify.io
- Metroc
- M-Files
- Mïbero
- Microtask
- Midaxo
- Miitti Software
- Mills
- Mindclip
- Mindfindr
- Minduu
- MiniFactory
- Miradore
- Missing-Link
- Mjuk
- MobiiliMenu
- Mobile Joomla!
- Mobimus
- Model IT
- Moder
- Modulight
- Mohinet
- Moido Games
- Molnix
- Momzie
- MONI
- Monidor
- MoniDose
- Montinutra
- Montisera
- Monzuun
- Moodmetric
- MoralGuard
- Morrow Games
- MORS Software
- MotiMind
- MotionVolt
- Motivade
- MotoCut
- Mountain Sheep
- Mount Kelvin
- Movendos
- Movenium
- MSCHIC Cosmetics
- M-Solutions
- M-Technology
- Mubik Entertainment
- Mukava
- Muksubussi
- MUKSUNKIRJA
- Multi Touch
- Munchi
- Murhamysteerit.com
- Music Drive-In
- Musicinfo
- Music Kickup
- MusiClock
- Musopia / FourChords
- MUUAN
- My 365 Days in Print
- MyCity
- myDBR
- MyGamez
- MyKontiki
- Myontec
- MySoda
- myStaze
- mySuperMon
