- Habito Health
- Hailer
- Hamina Wireless
- Happeo
- Harald AI
- Harhama Games
- Harrison Bikes
- Haruworks
- Hashlist
- HeadAI
- Healthzilla
- Heart2Save
- Heat Ledger
- Heely
- Hei.io
- HEI Schools
- Heliostorage
- Helppohinta
- Helppy
- Helsieni
- Hempuli
- Herkkä Snacks
- Hexlet
- Heychain
- Hi5 Solution
- Hiil Ltd.
- Hiisi Homes & Hotels
- HMD
- Hoivanet
- Hoiwa
- Hookle
- Hopoti
- Horseteq
- Hortimill
- Hostaway
- Hotelway
- Hoxhunt
- HTM Solutions
- https://www.vertaaensin.fi/
- Hukka
- Humbol
- Hunome
- Huuva
- Hycamite
- Hydrohex
- Hyper ICT
- Hyperion Robotics