Communities in Helsinki, Finland
FIVR
Free Code Camp Helsinki
FuckUp Nights Helsinki
Future Female
Girls in Tech -Helsinki
GraphQL Helsinki
Helsinki Cassandra Users
Helsinki Customer Success Meetup- Helsinki Data Analysis
- Helsinki Functional Programming Study Group
- Helsinki Functional Reactive Programming Pioneers
- Helsinki Global Talents
Helsinki Perl Mongers
Helsinki PHP / Symfony Meetup
Helsinki Reddit Meetup- Helsinki Security Meetup
- Helsinki Social Entrepreneurship Meetup
HRTech.fi
Impact Iglu
Interactive Visualization Helsinki
IxDA Helsinki
Jallu Friday
Lean Startup Helsinki 
Likemind Helsinki
Mobile Monday Helsinki
Open Finland Challenge
OpenVZ
PHP User Group Finland
Product Camp Helsinki
Quantified Self & Biohacking Finland
SharePoint & Office 365 User Group Finland
Startup Helsinki
Switch Case Koodikummit
Thoughtworks Finland 
Tiistai-klubi- Vantaa WebDev
Vietnamese Tech Community in Finland
Vue.js Finland
XR Nation