- Paahtimo Papu
- Package Testing & Research
- PAIKKA International
- Pajat Solutions
- Palkkaus.fi
- Palko Interactive
- Palonot
- Palscan
- Pampa Foods
- Panacea
- Panic Art Studios
- Paptic
- Papu Design
- ParisRio
- Parkcomfi
- Parking Energy
- Parkly
- ParkMan
- Parta Games
- Part Time Monkey
- Party Bugs
- Patternry
- Peili Vision
- Pelago MFG
- Pelio
- Pelsu Pelastussuunnitelma
- Perille
- Perilune
- Perkly
- Personik
- Pethotel
- Pharmafin
- PHD Nordic
- Phonolyser
- Physilect
- Physio Touch
- Pianorobot
- PiBond
- Pibox
- Piceasoft
- Picks
- Picodeon
- Pictue
- Picturall
- Pikasiirto
- Pikkukala
- Pikkuli
- Pilvi
- Pinland OY
- Pint Please!
- PipeCloud
- PixMoor
- Pixpolar
- Plain Complex
- Planago
- Planetboard
- PlanMill
- Plantui
- Platonic Partnership
- Player Entertainment
- PlayGain
- Playmore Games
- PlayPal
- Playsign
- Playsome
- Playvation
- Please Be Patient
- pnkfrg
- Pobi Concept
- Pocum
- POINTR
- Pointvenue
- Polar Night Energy
- Polar Partners
- Polar Shift
- PolarSol
- Pole Bicycles
- Pop In Games
- Popit
- Poplatek
- Positive Learning
- Precision Phage
- Predicell
- Premode
- Prepaird
- PressRush
- Priceff
- Primoceler
- PrivacyDesigner
- ProApp
- Process Genius
- ProdLib
- Production Software
- Profilence
- Profium
- PROimpact
- Project Aalto
- Prometec Solutions
- PromoRepublic
- Pro Prospect
- ProtectPipe
- Proximi.io
- Proxion Solutions
- Psyon Games
- Puhdistamo
- Puida
- Pulmaton Solutions
- Pulse247
- PulseOn
- PULS Nutrition
- Punnu Games
- Punos Mobile
- Pure Waste Textiles
- Puuartisti
