- Iceflake Studios
- ICEYE
- iconicchain
- Idlis
- IDR
- Idsens
- iFarm
- IGL-Technologies
- Ignaz Analytics
- Ihme-3d
- IISI LIFE
- Iiwari
- Ilmatar
- Ilona Works
- iLoom
- iLOQ
- IML
- Improx Games
- in1SIM
- In4mo
- Inbot
- Inclus
- IndoorAtlas
- Indoor Informatics
- Indoor.io
- Info Totem
- Infrakit
- Injeq
- InnoDuel
- Innogiant
- Innomost
- Innopinion
- InnoSchool Finland
- Innotools
- Innovator Network
- In Parallel
- Inray
- Inscripta
- InsightsAtlas
- Insjö
- InspectWise (OLD)
- Integround
- Intellipocket
- Intoloop
- Introist
- Intunex
- Inven
- Invesdor
- Invisian
- Ioncell
- IPRally
- IPReye
- IQM
- IQ Payments
- Iscent
- IsoSkills
- iStubb
- ite wiki
- IVALO
- iXES
- IXOLIFT