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- Harrison Bikes
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- Hatch
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- Havina Productions
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- HealthFOX
- Healthgamer
- Health Invest Finland
- Health Puzzle
- Health Revolution
- Heart2Save
- Heat Ledger
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- Heimo
- Hello Hobby
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- Helmee Imaging
- Helsieni
- Helsinki Distilling Company
- Helsinki Noir
- Helsinki Wildfoods
- Heltti
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- Herdifier
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- Hi5 Solution
- High Way of Life
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- HipFire Games
- HitSeed
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- Hokkari Vision
- Holda
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- Hostaway
- Host My Pet
- Hotspot.fm
- Hoxhunt
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- Huijaus Studios
- huimio
- Human Engineering Health
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- HUONE
- Huoneistostudio
- Hurricane Unwinder
- Huuuge Games
- HV Cable Solutions Oy
- Hydrohex